Q: How can setup can be a regular user can't be sauo root? A: Smitty User-> Change / Show Characteristics of a User-> root-> Another user can su to user? False
Outline: Upgrade with FEPROM_UPDATE FIRMWARE 2002-07-24 LEDE1DC error prompt for the Chrpsystems system launch process 2002-07-24 How to build a hot backup disk in AIX5.1? 2002-07-24 How to make non-root users have permission to execute SAR commands 2002-07-24 Using Errpt commands, generate 0315-171 Error 2002-07-24 An error occurred while executing the su command: AuthenticationDenied. 2002-07-24 Find files or commands corresponding to file set 2002-07-24 AIX5L New Features (1): How to confirm the CPU's frequency? 2002-07-24 How to record FTPLOG? 2002-07-24 What is the current RS / 6000 support logical partition (LPAR)? 2002-07-11 There are those files and data in the migration installation (MigrationInstallation)? 2002-07-11 How to define the file that needs to be retained in the preservationinstallation mode? 2002-07-11 The difference between PTF and APAR? 2002-07-11 Convert the content viewed by the man command into a normal text file 2002-07-11 View BootLog 2002-07-11 inetd.conf file recovery 2002-07-11 How to disconnect a login user? 2002-07-11 Using Errdemon Customization System Error Log File 2002-07-11 What version of Oracle Database Support AIX5.1 2002-07-11 IBMPSERIES and RS / 6000 Which models can be installed SUSELINUX? 2002-07-11 How to monitor Naked Equipment I / O? 2002-07-11 Installing RPM Format Package on AIX 2002-07-11 Gated Process Introduction and Application 2002-03-25 How to Handle MountD and NFSD Normally Start 2002 -03-25 How to switch on graphic login and command line login mode? 2002-01-29 How to prevent certain users from remote login, telnet, rlogin? 2002-01-29 How to reject the FTP access of certain users? 2002-01-29 How do you find how many processes have been launched in a user? 2002-01-29 How to find too large files when cleaning up / TMP file systems? 2002-01-29 How to limit a user accessed in a particular PTY.
2002-01-28 How to open a lock-down account 2002-01-28 How to download the RS / 6000 related patch (FIX, PTF), maintenance package and microcode 2002-01-03 If you want to transfer Linux applications to Where is the reference resource on the PSeries and RS / 6000? 2002-01-03 Do you support more than 2GB files on AIX 4.3? 2002-01-03 What is backed up by IBM Informix Database Level Backup? 2001-12-31 How to configure the IBM Informix database temporary database space on the RS6000 Series machine? 2001-12-31 How to change the host IP address analysis order 2001-12-30 AIX Wireless System Manager 2001-12-30 Cannot increase users, error message is 3004-687 2001-12-20 How to change the default for uploading FTP files Reading and writing attributes? Purpose of the RMSS command in AIX 2001-12-19 How to clear the hang of the Hanging TTY 2001-12-18 in AIX 4.x How to the Logical Name of the AIX and the correspondence of its slot 2001- 12-14 How to make mirrors to improve system high availability and performance 2001-12-11 Debug Mode boot AIX 2001-12-10 KDB Command 2001-12-10 How to make a network card in AIX, with multiple IP addresses? 2001-12-03 AIX kernel parameter adjustment VMTUNE -P -P (2)? 2001-11-30 AIX kernel parameter adjustment VMTUNE -F -F (3)? 2001-11-30 Linux and PSeries / RS6000 2001- 11-30 AIX kernel parameter adjustment VMTUNE -M (5)? 2001-11-30 AIX kernel parameter adjustment VMTune -R -R (4)? 2001-11-30 How do I run Update_all? 2001-11 -29 How to determine a file system is a file system of LARGE FILE ENABLED? 2001-11-29 Handmade SMIT menu 2001-11-29 6230 SSA card snapped cache settings? 2001-11-29 Support XWINDOWS to install those file sets (fileset)? 2001-11-29 How to change the IP address 2001-11-27 Start sendmail 2001-11-27 How to display Greenwich time 2001-11-27 See the corresponding relationship between the SSA logic disk and the physical disk 2001-11-27 login failed Excessive number 2001-11-27 User name length Issues 2001-11-27 How to determine the application of the Core file 2001-11-27 InitTabs 2001-11-27 Unlock volume group 2001-11-27 A tape backup multiple files 2001-11-27 Summer time problem 2001-11-27 How to limit a user to use FTP services 2001-11-27 How to get in the AIX system Some lonely Chinese characters 2001-11-27 AIX supports RamDisk 2001-11-15 What is inline log 2001-11-15 What is X-window 2001-09-29 How to increase the number of inodes in the file system 2001-09-28 How to Customize System Memory Environments 2001-09-28 for the Nuclear Issues of AIX 4.3.3 for the Debugging Application Performance.
2001-09-28 How to implement the same function as Doskey on AIX 2001-09-28 How to modify the attribute of the terminal to adapt to the special needs 2001-09-28 another method for the VI editing large text file 2001-09-28 How to use GREP Some advanced options to better manage the system 2001-09-28 IBM RS / 6000 CPU and IBM InformIX Database CPU Music Processor Settings 2001-08-28 AIX and Linux Alliance 2001-08-17 Where can I download? JDK? 2001-08-02 How to set the TFTP Server 2001-07-31 why using CD-ROM can not boot the 64-bit kernel in AIX 5L 2001-07-16 AIX 5L 5.1 2001-07-12 How to switch between 64-bit and 32-bit kernels in AIX 5L 5.1? 2001-07-12 What is EtherChannel? What is enhanced in AIX 5L? Comparison of JFS2 and JFS 2001-07-11 AIX 5L V5.1 Introduction 2001-07-10 How to determine the frequency of PSERIES and RS / 6000 CPU? 2001-07-04 Using MKSYSB to make system backups Is there any benefits 2001-07-01 How to steadily stop AIX system operation? 2001-07-01 How to solve the new user on AIX, error message 3004-687 2001-07-01 / VAR / ADM / WTMP file is too big to do 2001-07-01 How to set up PROMPT in the Korn Shell will display the current directory? 2001-07-01 2001/06 AIX Security Related Patch (APAR) 2001-06-26 When running MKSYSB, the system error: "Rootvg is locked" (root volume group is locked) 2001-06-25 How to Documentation Documentation in Search Service? 2001-06-25 CDE can't start touched (1) 2001-06-25 Only root users can log in to XWindows, but ordinary users cannot log in, how to deal with? 2001-06-25 CDE Cannot start Douvess (2) 2001-06-25 Execute EXECD Error 0826-604 2001-06-12 How to configure the Processor Entitlement 2001-06-12 AIX 5L in AIX 5L 2001-06 -12 How to mirror rootvg 2001-06-08 AIX 5L v5.1 adds new features in the network? 2001-06-08 What is DEAD GATEWAY Detection (DGD, failure gateway detection)? 2001-06-08 Virtual IP Address (VIPA) Virtual IP Address 2001-06-08 AIX supported the largest Socket number 2001-06-08 Establish the second root user 2001-06-05 How to view the system TelnetD daemon has started 2001 -05-31 How to use the DD command backup device 2001-05-31 When using the LS or MV * command, generate an error message for "arguments too long" or "array list too long" 2001-05-31 Ordinary users cannot perform SU Command 2001-05-31 AIX version number 2001-05-31 In the AIX4.3.3 system, why the OSLVEL command is not 4.3.0 2001-05-31 How to view the size of the CPU's time film 2001-05-30 Recovery File System Super Block 2001-05-30 TAR Backup Link File 2001-05-30 Synchronization Time 2001-05-30 in RS6000 in the same network segment,
When using new 7210-025 DVD-RAM to back up the volume group, can you write a file across multiple CDs? 2001-05-29 Run the IOSTAT -D command system Return Warning Tips "Disk History Since Boot Not Available." 2001-05-23 Setting the full duplex or half-duplex when setting an Ethernet card? 2001-05-23 How to determine the current system Is 32-bit or 64-bit? 2001-05-23 AIX Version 4.3 Bonus Pack - April 2001 Edition 2001-05-23 AIX V4.3 Support more than 2GB big file 2001-05-22 How to start in AIX4.3.3 or Stop DHCPCD 2001-05-22 Editing large text file 2001-05-22 Under root directory (/), RM *, how to recover system 2001-05-22 How to solve the error when License Server startup, GRL-2050: Fatal Error How to create a fixed size temporary file 2001-05-22 Smit.log and Smit.Script file 2001-05-21 How to reduce the fragmentation in the file system 2001-05-21 AIX to floppy disk DOS Compatibility Command 2001-05-21 View System Startup Information (ALOG) 2001-05-21 How to View Properties of Other Terminals in Multi-User System 2001-05-21 View PDISK and HDISK correspondence 2001-05 -21 How to see how the machine in the machine and the microcode level 2001-05-21 How to use Pageup / PageDown on DTTERM Page 2001-04-30 How to disable dynamic routing 2001-04-30 Unable to delete File System 2001-04-30 How to limit some users unable to ftp to RS / 6000 Server 2001-04-30 How to increase file system Space 2001-04-29 PCI couple multi-protocol card (2-port MultiProtocol PCI Adapter 9-L) Configuration Method 2001-04-28 User Conversion Error 2001-04-28 SHELL program for killing process 2001-04-25 How to do NFS file systems on Mount Redhat Linux in AIX? 2001-04-25 How to limit users to change the password 2001-04-24 AIX4.3 Maintenance package (Recommended Maintenance) 2001-03-15 How to automatically start and turn off the software 2001-01- 18 Disc drive error 0514-062: The specified device is busy. 2001-01-18 AIX4.3.2 Installing the graphics card GXT130P 2001-01-15 / var / adm / wtmp file too large 2001-01-15 Display settings boot boot sequence 2001 -01-15 Installing MAN 2001-01-15 Changing Host IP Address Analysis Sequence 2001-01-15 Telnet prompt "All network ports have been used" 2001-01-15 LED 223-229 Faults 2001-01-05 LED 553 Fault Solution 2001-01-05 AIX version number Doubt 2001-01-05 /etc/preserve.list file What is the use? 2001-01-05 LED 201 Failure 2001-01-05 LED 551, 555 and 557 fault Solving 2001-01-05 LED 552, 554 and 556 Faults Solution 2001-01-05 How to replace damaged mirror volume group hard drive? 2001-01-05 RS / 6000 LCD display code (LED) meaning 2001-01- 02 Cannot add new users,
Error Message 3004-687 2000-12-29 Dial-up Access RS / 6000 Quick Configuration Method 2000-12-29 Solving NFS and NIM Errors caused by 10/2000 and 11/2000 Update CDS 2000-12-29 Solving Upgrade ( Migration) You may encounter to fail when AIX 4.3.3 2000-12-29 Change Disk Name Sequence 2000-12-29 How to determine block size and type (TYPE)? 2000-12-29 How to create / dev / null file? 2000-12-28 Netscape Communicator Unable to start 2000-12-28 How do I find a file set corresponding to a file or command in the system? 2000-12-28 From " Recovery 2000-12-28 Restore 2000-12-28 Restore 2000-12-28 from the LED C31 2000-12-28 to see if there is an easy way to install a patch in the operating system 2000-12-28 .sh_history file is destroyed What to do? 2000-12-28 How to block a user's FTP access? 2000-12-28 AIX installation method and its characteristics 2000-12-28 SSA card and 7133 configuration case 2000-12-28 Non-root users login issues 2000-12-28 How to view the physical memory of RS / 6000? 2000-12-27 About NFS and NIS in Update CD in November 2000 2000-12-27 Communications Server Unable to start 2000-12-27 How to install online manual in AIX 4.3? 2000-12-27 How is the AIX 5L 2000-12-27 How to solve the problem that cannot release the optical drive 2000-12-27 How to quickly use the AIX patch? 2000-12-27 How do I monitor the busyness of AIX's single file / lv / pv? 2000-12-27 Checking the virus 2000-12-27 on AIX 2000-12-27 System Stop LED C33 2000-12-26 How to view the size of the physical memory 2000-12-12 Using the command line Installation Delete File 2000-12-12 Remote customers can log in via "login, ftp", but can not pass "Telnet" to log in 2000-12-12 AIX license permission 2000-12-12 How to solve "Device Busy" problem 2000- 12-12 IPCS Limitation (AIX 3.2.5 --- AIX 4.3.2) 2000-12-12 AIX user system resource usage limit 2000-12-12 AIX 4.3.3 Monitoring system activity new command - Topas 2000- 12-05 Setting Chinese Environment in AIX 2000-12-04 "Volume Group Locked" Recovery Step 2000-11-30 How to add icons in CDE? 2000-11-28 How to create / dev / null file 2000-11-27 How to reduce the size of / var / adm / wtmp file? 2000-11-27 How to find which file set in a file in the system? 2000 -11-27 How to use CDE Environment? 2000-11-17 How to save the current CDE environment 2000-11-17 How to make .profile files in CDE? How to create shared libraries 2000-11-17? 2000-11-17 What is the COSE? 2000-11-16 process KPROC 2000-11-14 How to manage Paging Space 2000-11-14 Asynchronous I / O (AIO) 2000-11-14 Naked Equipment 2000-11 -14 In the AIX4.3.3 system, why is the OSLVEL command output is not 4.3.3.0?
2000-11-13 Chinese input 2000-11-13 libc.a file recovery 2000-11-13 What is AIX / Montery 2000-11-13 How to use IBM HTTP Server to support AIX online documentation? DV connection verification "good" and "reserved" 2000-11-13 How to recover from LED 553 2000-11-13 RAID technology introduction 2000-11-10 How to reduce HD6 page space 2000-11-09 When doing the RS / 6000 AIX order configuration, do you need to configure the number of users? 2000-08-04 How to download RS / 6000 PTF (Fixes) and Firmware? 2000-06-13 FAQ: How to build a hot backup in AIX 5.1 (HOT SPARE) disk? Environment AIX 5.1 How to build a hot spare disk in AIX 5.1? Solution can establish a Hot SPARE disk at the level of the operating system in AIX 5.1. If you need to create a Hot SPARE disk in a volume group (VG), you must meet the following conditions: 1. Logical volume (LV) must mirror (mirror) in this volume group. 2. Any logical volume or file system cannot be available on the disk of the Hot SPARE. 3. The capacity of the HOT SPARE disk should be greater than or equal to the capacity of the maximum disk in this volume group. After satisfying the above conditions, the following steps can be used (assuming that the volume group is called TestVG, the disk is hdisk6): 1. # Exptendvg Testvg HDisk6 Add HDisk6 to the volume group TestVG. 2. # chpv -hy hdisk6 Mark HDisk6 as a Hot SPARE disk. 3. #CHVG-Hy -sy Testvg Mark the testVG as a volume group using the Hot SPARE disk, and automatically performs the replacement of the disk and synchronizes when the disk failure occurs. Upgrade the Firmware Environment Platform with FePROM_UPDATE: RS / 6000 Question Upgrade Firmware Solution in AIX 4.3, Command FEPROT WRITE INTE: 1734-009 Cannot Write In Feprom Get this prompt, indicating that Firmware is broken, the system will not start. This problem may appear on the SMP system (also including SP high nodes) at 604E. Before upgrading FIRMWARE, you should check if APAR IX84560 has been installed in the system. Get this packet from the following URL: http://techsupport.services.ibm.com/rs6k/fixes.html Chrp Systems system launch process LED E1DC error prompt environment platform: RS / 6000 version: AIX 4.3 Question Chrp Systems system LED E1DC error prompts for startup processes Subsequently launch the E1DC LED error prompt with the AIX installation disk or diagnostic disc installed on the hard disk, often encounter E1DC LED error prompt. Determine if a machine is a CHRP structure You can use the following command: lslpp -l defices.chrp.base.rte if the defices.chrp.base.rte file exists, is the ChRP structure; if this file does not exist, this problem will not happen. To prevent this problem It is a patch package: APAR IX79693. It is included in AIX 4.3.2 and 4.3.2 Diagnostics CD (P / N 08L1427 or 08L1430). If this problem occurs, the only way is to remove the battery after the system is powered down, and then replaced 10-15 minutes.
When the ordinary user executes the su command: Authentication Denied. Environment: AIX Platform: RS Software Version: 4.3 Issues When the normal user executes su command su to root or other ordinary users, an error is generated: Authentication Denied. Solution Use the command ls -l / usr / bin / su check the permissions of the Su file, the correct permissions should be: -r-sr-xr-x root security ... If the permissions are incorrect, use the following command to modify: # CD / USR / BIN # chmod 4555 SU How to make non-root users have permission to execute SAR command Environment: AIX Platform: RS Software Version: 4.3 Problem How to make non-root users have permission to execute SAR command solutions can pass SMIT -> Security & Users - -> Users -> Change / Show Characteristics of a User Modify the user's properties, add the "ADM" group to the user's Primary Group. Use errpt command to generate 0315-171 Error Environment: AIX Platform: RS Software Version: 4.3 Problems When using the command Errpt -a View system error report, error: 0315-171: No error log file / var / adm / ras / errlog solution This error is due to the resulting / var / adm / ras / errlog file being destroyed, you can use the following steps to delete existing files, so that the system automatically generates a new / var / am / ras / errlog file : 1. / usr / lib / errstop 2. RM / VAR / ADM / RAS / Errlog 3. / usr / lib / errdemon How to record FTP log? Environment RS6000 & PSeries AIX 4.3 and AIX 5L problem How to record ftp log? Solution lack Save the system does not record logs (logs) using FTP connection and transfer files. This will cause security hazards for the system, especially when users use anonymous FTP mode. To avoid this, you can use the following steps to make the system log: 1. Modify the /etc/syslog.conf file, and join a line: daemon.info filename where FileName is the name of the log file, it will track FTP Activity, including anonymity and other user ID. FileName file must be created before doing the next step. 2. Run the "refresh -s syslogd" command to refresh the syslogd background program. 3. Modify the /etc/inetd.conf file, modify the following data line: FTP stream TCP6 NOWAIT ROOT / USR / SBIN / FTPD FTPD -L 4. Run "refresh -s inetd" command refreshes the inetd background program.
Find a file or command corresponding to the fileset environment: AIX platform: RS Software version: 4.3 Question Find files or commands Corresponding file set solution 1. Confirm that the file set has been installed in the system: bos.content_list 2. Find files or commands Corresponding file set, use command: # / usr / sbin / which_fileset
View Boot Log Environment: AIX Platform: RS Software Version: 4.3 Problem How to View the LOG? Solution to the Upon Last Log? Solution # alog -o -t boot Converts the content of the man command into a normal text file environment: AIX platform: Software version: 4.3 Questions How to convert the content viewed by the man command into normal text files for printing or further viewing? Answer You can use the following command to convert the contents of the LS command to text files for text files Man.txt: #man ls | col -b> man.txt inetd.conf file recovery Environment: AIX Platform: RS Software Version: 4.3 Question inetd.conf file recovery solution Sometimes for some reason, / etc / inetd. CONF file is damaged. TCP / IP aspects will be brought to the machine: If FTP can be restored in the following steps. Conf file. # vi /etc/inetd.conf # stopsrc -s inetd #mv /etc/inetd.conf /etc/inetd.conf.old #CD /USR/LPP/BOS.NET/INST_ROOT/Etc #CP inetd.conf / ETC /inetd.conf #startsrc -s inetd how to disconnect a login user? Environmental Products: AIX Platform: RS Software Version: 4.3 Questions If you want to disconnect a login user, how to do a solution You can use the command fuser -k
# SAR -B 1 3 AIX 6F1 3 4 00023A0F4C00 06/19/02 18:16:30 Bread / S LREAD / S% RCache BWRIT / S LWRIT / S% WCache Pread / S PWRIT / S 18:16:31 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Where BREAD / S and BWRIT / S Number of block naked equipment I / O operations. Pread / S and PWRIT / S show the number of Character Raw Device I / O operations AIX 4.3.3 / 5L problem on AIX 4.3.3 / 5L problem installed on AIX 1 installed RPM Format Package Solution 1. Installing Redhat package manager - rpm.rte 2. Installing RPM Format software # rpm -ivh fileset_name 3. Checking the Follows Result # rpm -q fileset_name Gated Process Introduction and Application Content We know that in the AIX operating system, The Gated process can support RIP, RIPNG, EGP, BGP, OSPF, etc., and even support SNMP protocols. Generally speaking, the Gated process cannot be used simultaneously with the routed process, otherwise it will result in unforeseen errors. 1. How to start and stop the working mode of the Gated 2.gated process 1) Configuration /etc/gated.conf support RIP protocol 2) Configuration /etc/gated.conf support OSPF protocol text We know that in the AIX operating system, the Gated process can Supports RIP, RIPNG, EGP, BGP, OSPF, etc., and even support SNMP protocols. Generally speaking, the Gated process cannot be used simultaneously with the routed process, otherwise it will result in unforeseen errors. 1. How to start and stop the Gated Gated process is a subsystem of the System Resource Control System (SRC) in AIX, so we can start and stop using the following command: startsrc -s gated - Start Stopsrc-S Gated - Stop TOP 2. Gated Process Mode When Gated starts, the Gated process will automatically find the /etc/gated.conf file, start the appropriate service according to the configuration of /etc/gated.conf. Therefore, it is critical to properly configure /etc/gated.conf files to start and work properly for the GATED process. The following is the most frequently used RIP protocol and OSPF protocol, which is the most frequently used RIP protocol and OSPF protocol to introduce: TOP 1) Configuring /etc/gated.conf supports RIP protocol # this gained.conf file The update of the RIP information notifies all network interfaces of the system. At the same time, when the Gated process is not started or the routing information is not updated, the static routing information in the routing table is retained. # /etc/gated.conf traceOptions "/tmp/gated.trace" all; redirect yes; rip yes {interface all ripin ripout;}; static {default gw 172.16.1.1 retain;}; TOP 2) configuration / etc / gaated .conf supports the OSPF protocol # This gained.conf file enables the GATED process to use the OSPF protocol in the ENT0 port.
And receive updated routing information from 9.185.40.1 (router port). If you want to listen to multiple router ports, put the addresses of these ports in the eLigible item. ########################################################################################################## ; ripng no; hello no; ospf yes {traceoptions state detail packets; area 0.0.0.1 {interface ent0 nonbroadcast cost 1 {pollinterval 10; routers {9.185.40.1 eligible;}; retransmitinterval 5; hellointerval 10; priority 50; routerdeadinterval 40; };};}; export proto ospfase {proPort protection; proto ker; proto direct;}; how to reject FTP access? Environment: AIX platform: RS Software version: AIX V4 problem For security reasons, you need to reject Some users' ftp access? Solution, please edit / etc / ftpusers to add users who need to reject, each user line for example: #MORE / etc / ftpusers QL When trying FTP login, the system error: Name (localhost: root): QL 530 USER QL Access Denied. How many processes have been launched in a user? Environmental Products: AIX Platform: RS Software Version: AIX V4 Problem Users Need to see if a user has launched too many processes, affecting system performance solution, please use #ps -ef | grep username | WC -L Note: This is used The function of the number of WC -L statistics is an estimate of the number of user processes, not very accurate value. But it is fully available for reference. How to find too large files when cleaning / TMP file system? Environment: AIX Platform: RS Software Version: AIX V4 Problem / TMP File System is full, how to find which files are too large, and release space. Solution Please use for Example, which file is greater than 5M bytes. #CD / TMP #Find. -Size 10000 -exec ls -l {} /; Remarks: When you delete these excessive files, please confirm that it is useless to limit a user Access to a specific PTY. Environmental Products: AIX Platform: RS Software Version: AIX V4 Problem Users want to limit access to certain ports.
Answer User You can edit / etc / security / user. For example: test: admin = false admgroups = system ttys =! / Dev / pts / 0, all results are user tests can log in in all ports other than PTS / 0, Test When logging in to PTS / 0, the system is wrong You are not allowed to access the system via this terminal. IBM PSeries and RS / 6000 Which models can be installed SUSE Linux? Environmental Platform: RS Issues IBM PSeries and RS / 6000 Which models can be installed SUSE Linux? From June 4, 2002, RS6 / 6000 B50, 150 and F50 can install SUSE Linux for PowerPC Version 6.4 (support 32-bit kernel); current PSERIES and RS / 6000 except p680, SUSE Linux Enterprise Server (SLES) Version 7 (supports 64-bit kernel). More information View: http://www.suse.com http://www.suse.com/us/products/suse_business /sles/sles_iseries_pseries/index.html How to switch between graphic login and command line login mode? Environmental Products: AIX Platform: RS Software Version: AIX V4 Problem Users need to switch in two login methods of CDE. Solution # / usr / dt / bin / dtconfig -e activation graphic login mode # / usr / dt / bin / dtconfig -d activation command line login method How to handle MountD and NFSD Nomask to start the environment S / 390 or ZSERIES; OS / 390 Issue Network File System (NFS) is UNIX's universal network protocol, allowing files or printers to share over the network. In the AIX operating system, there are 5 processes for NFS, namely BIOD, NFSD, RPC.Mountd, RPC.Statd, and RPC.Lockd. This article will be briefly introduced to how to handle NFSD and MountD's normal startup. This is often encountered because in actual work. 1. MountD and NFSD processes 2. MountD processes are not started 3. NFSD processes are not launched 1. The MountD and NFSD processes describe the MountD process is a remote procedure call (RPC), which is to install the client (MOUNT) ) The application of the file system makes a response. The MountD process can be used by the remote client by looking for / etc / xtab files. In addition, through the mountd process, users can know which file systems currently have been assembled by remote file system and to know the list of remote clients. The NFSD process is running on the server and is responsible for processing the operation of the remote client to the local file system. Each NFSD process simultaneously processes only one client's operational application, so multiple NFSD processes may be started on an NFS server. 2. The MountD process does not start if the MountD process is not started, we need to check the following: 1) 99% of the likelihood is that the Loopback's name is incorrect. In other words, it is necessary to ensure that the IP address corresponding to the loopback is 127.0.0.1; at the same time, the names corresponding to 127.0.0.1 are loopback, not LocalHost.
We can check with the "Host 127.0.0.1" and "Host Loopback" commands. The following output results are correct: #host 127.0.0.1 Loopback IS 127.0.0.1, Aliases: localhost #host loopback loopback is 127.0.0.1, aliases: localhost The following output is wrong: #host 127.0.0.1 loopback.cn.ibm .com is 127.0.0.1, aliase: localhost.cn.ibm.com #host loopback loopback.cn.ibm.com is 127.0.0.1, aliase: localhost.cn.ibm.com If the result of the host command is wrong, You need to check the order of / etc / hosts files and name resolution - usually add Hosts = local, bind to the /etc/netsvc.conf file. 2) Use the command lslpp -l bos.adt.lib to check if the file set exists, otherwise you need to install it. 3) Install the latest bos.rte.tty, bos.rte.streams and bos.net.nfs.client file sets. Run rpcinfo -p => Should return to the list of registration processes for Portmap. If the list of processes do not return, you need to start or restart the portmap process. If the process list returns, run the rpcinfo -u localhost mountd command, if there is an error, run /usr/sbin/rpc.mountd, get possible error reasons from the returned error message. 3. The NFSD process does not start if the NFSD process is not started, we need to check the following: 1) First confirm that the NFS output list exists, otherwise the NFSD will not start. You can check with the exportfs command. If the exportfs command does not have the result back or return incorrect, you need to check the / etc / exports file. 2) Run scls order to ensure the existence and timod tirdwr - #scls bufcal fi ptc sc sna_v5ro tcp6 tr udp6 echo ldterm pts sf snasxm timod ttyp unixdg en lft0 ptyp sixp spx tioc udp unixst et nuls sad slog tcp tirdwr otherwise need to check / etc /pse.conf file and cancel the comments to them. 3) Check the name resolution, see the first item that "MountD process is not started". 4) Make sure the following output value is not greater than the value of "no SB_max" (especially in the SP system).
# no -a udp_sendspace udp_recvspace TCP_SENDSPACE TCP_RECVSPACE #NFSO -A NFS_SOKETSIZE NFS_TCP_SOCKETSIZE APCUNSTALLATION Some files and data are reserved in the Migration Installation? Environmental products PSERIES, RS6000 issues have those files and data in the migration installation (MIGRATION installation)? Answer operating system Upgrade AIX versions using Migration Installation, for example: AIX 3.2, AIX 4.1, AIX 4.2, or AIX 4.3 to AIX 5L 5.1. In addition to the / TMP directory will be overwritten, all file systems will be retained, including data, logical volume data, and system profiles of the root volume group. Migration Installation is a default installation method in the Migration Installation. How to prevent certain users from logging in, telnet, rlogin? Environment: AIX platform: RS Software Version: AIX V4 Questions For security reasons, you need to make some users can only log in in the console, not allowing remote use answers. Edit / etc / security / user Change User Properties Required Rlogin = False When attempts to log in, the system error: Remote logins are not allowed for this account If you want to transfer Linux applications to PSeries and RS / 6000, where is the reference Resource? Environmental Platform: PSeries, RS / 6000 Issues If you want to transfer Linux applications to PSeries and RS / 6000, where do you have a reference resource? Sign User If you want to port Linux applications to the PSeries and RS / 6000, you can use AIX Toolbox for Linux Applications with AIX Toolbox for Linux Applications in AIX 4.3 and AIX 5.1. The book number is a good explanation of the red book for SG24-6033-00. The specific URL is as follows: http://www.redbooks.ibm.com/abstracts/sg246033.html How to download the RS / 6000 Related Patch (FIX, PTF), Maintenance Package and Microcode Environment: PSeries, RS / 6000 Platform: How to download the RS / 6000 related patch (FIX, PTF), maintain package and microcode solution To download the RS / 6000 related patch (FIX, PTF), maintain package and microcode (Microcode) You can visit the following URLs first: http://www-900.ibm.com/cn/support/r6download.shtml First Reference The Download Use Guide, then click the appropriate connection to download.
Does more than 2GB files on AIX 4.3? Environmental Platform: PSERIES, RS / 6000 Version: AIX 4.3 Question AIX 4.3 Supports more than 2GB files? Solution AIX 4.3 can support 64GB file size, which requires the Large File Enabled option when creating a file system (running CRFS). If this option is not selected, the maximum file size supported by AIX 4.3 is 2GB. AIX Wireless System Manager Contents This article describes all methods that may resolve system space, you don't need to perform all of the following steps, select one of the most efficient or several methods. Note In today's 7x24 hours of continuously running business environments, the boundaries of work and life have become more and more blurred. Popularization calculations allow people to conduct business activities at any time, communicate with colleagues, and receive information ---- whether it is in the office or otherwhere. WSMA has brought mobile server management into a new world by using wireless devices. Using standard WAP phones, system administrators can log in to AIX systems by using AIX user authentication to monitor the system and perform some key business management functions. The server alarm function implemented by "push" technology is liberated from the console. It can also send a short message to the administrator's mobile phone to notify him that the predefined criteria have been triggered. Description Background Since the 1994 Sprint launched a personal communication system (PCS) --- Telecommunications service, the US wireless industry has almost all in North America and the consumer market. Despite some lag in Western Europe and the Asia Pacific, the business income of wireless data communications is expected to grow faster than wireless voice communications. Moving Internet is a network of wireless interconnects that require standard wireless protocols and data represented. According to DataQuest, the most common wireless protocol is WAP. By 2002, WAP-based mobile phone sales will reach 250 million units. In fact, Gartner Group expects that by 2004, 95% of new mobile phones will be able to use WAP. Support for WAP is not limited to wireless phones. There are currently many WAP browsers available in the market, the most famous is those PDA-based PDAs. It is also a Linux-based wireless embedded device that is popular as a general standard WAP browser in some places. With the commitment to 3G high-speed carrier services, the speed will be increased to pass one million bit information per second, and it is conceivable that in the future, mobile users can connect to all mobile devices that need to be connected! There will be open standard security measures on the wireless network to ensure the completion of trusted, confidential end-to-end e-commerce. High-speed reliable mobile networks allow mobile users or IT people to use a wireless architecture to manage their applications and systems. AIX Wireless System Manager (WSMA]) is a wireless system service that allows security and confidential management of system resources (such as CPU, disks, devices, and applications). AIX Wireless System Manager - WSMA In today's 7x24 hour, work and life boundaries have become more and more blurred. Popularization calculations allow people to conduct business activities at any time, communicate with colleagues, and receive information ---- whether it is in the office or otherwhere. WSMA has brought mobile server management into a new world by using wireless devices. Using standard WAP phones, system administrators can log in to AIX systems by using AIX user authentication to monitor the system and perform some key business management functions. The server alarm function implemented by "push" technology is liberated from the console. It can also send a short message to the administrator's mobile phone to notify him that the predefined criteria have been triggered. Relationship with other types of system management, traditional enterprise management software (such as Tivoli's TME) is a resource from a console management enterprise. Monitoring, reporting and executing some of the actions of the managed resource are made by the operator in a central location.
In an enterprise management system, both servers, networks, and clients (including wireless devices) are managed, classified, and view management tools. If a network problem occurs and alarms, the operator is going to play the wrong and solve the problem. WSMA just helps manage a server at a time. It assumes that the wireless network or device itself is wrong, still uses existing network and enterprise management tools. Authentication, confidentiality, authorized WSMA and IBM Everyplace Wireless Gateway provide the following security features: Different? How do users recognize and authenticate? Encrypt data authorization via Wireless Transport Layer Security (WTLS) and Secure Socket Layer (SSL) protocol - Provide great flexibility between WTLS and HTTP server, depending on user rights, this secure bridge is used to decrypt and encrypt data between WTLS and SSL channels, providing great flexibility between WAP-based clients and HTTP server. But this also shows a potential sensitive data exposure issue: the data sent to the data gateway itself has a security hidden danger! Because the data of the data is performed on the data gateway. It is an important consideration for the wireless network in protected locations when performing overall network security planning and configuration. WSMA Components WSMA provides management of servers and applications by using secure WAP devices. It uses a standard software component collection and wireless device: a WAP browser, which must be loaded into a wireless gateway WSMA device on a mobile phone or PDA, which is run as a standard HTTP server plugin The security of the connection layer on the managed server is by using the PPP protocol Remote Access Service (RAS) to access the company's intranet. Refer to the following schematic to understand different protocols, security components, WAP phones, gateways, and managed servers in wireless networks. The wireless gateway wireless gateway is a required component for communication between WAP clients and WSMA. It monitors data and messages from the client and translate Wireless Session Protocol requests to HTTP requests, and then forward to the HTTP server. The response header is converted from HTTP to the WSP response header, and the content is converted from WML and / or WMLScript to binary XML (WBXML), and then forward to the WAP client. IBM Everyplace Wireless Gateway (EWG) is a strong, scalable WAP gateway that is configured in the enterprise network. The resources managed by WSMA are divided into the following three categories: View - list universal system information such as Vital Product Data, Error log; survey - to determine the problem by viewing a variety of system resource conditions; correction - through enable / stop system resources and applications Management systems and applications. Because of the limited screen size of the WAP phone, the user interface must be concise, concentrated. With this awareness, for different categories and action performed by WSMA: System information VPD / error: Display or clear system error log RAM / CPU / disk: CPU usage, list the total space of the disk and Free space, listing of total and idle page switched space issues Determine PING Host: Ping Host Process Management: Through Owners, All CPUs or Current CPU Management Process Device Management: List online or offline Devices Manage Tasks Send a WALL command to the user: Send standard or customized information to all logins; file / file system / page swap space: clear or extend file system, Mount / Unmount file system, view page swap space; process / Subsystem: List or kill processes, list / query / start / stop / refresh / track subsystems; boot / stop / refresh / tracking sub-server applications / printing: start / stop application; boot / stop / cancel printing Homework; restart / downtime: Restart / stop the system.
The administrator knows the need to do specific actions by pre-defined notifications or seeing any abnormal conditions, and corrects the system by foreseeting a scenario (such as planning stop, etc.). The purpose of WSMA is not a replacement system management console, but a system and application that helps handle key when an error occurs. If necessary, complete error diagnosis and corrections can be executed on the server later. WSMA System Working Process The following scenarios describes the order of WSMA: 1. What conditions for administrators need to notify, and enter mobile phone numbers or short message addresses of notification destination 2. A short message appears on the administrator's mobile phone Indicating that some conditions are worth noting. 3. Administrators use the WAP device and password to log in to the server, which is the same as the device that receives a short message. 4. The administrator will see the main menu, and he browses and executes an action related to correcting the incorrect than the short message. If this information is a notification of an action, if a job is completed, the administrator can check the status of this job. 5. Administrator quits, interrupts the session, and hang up the phone. The send notification of the server management gives the administrator's ability to respond real-time response. The connection is safe and is anytime, anywhere. This management is very dependering on the public carrier, and the standard security protocol that has been available today can guarantee safe transactions and operations, so the wireless device management server is not only possible, but also reality. How to change the default read and write attribute of uploading the FTP file? How does an environment AIX 4 problem change the default read and write attribute of uploading the FTP file? Solution In the AIX environment, the default read and write attribute transmitted by the user from the Windows upload file to the AIX server is 640 (RW-R -----). If you want to change the default read and write properties 644, you first use the VI editor to open the /etc/inetd.conf file, add "-u 033" at the end of the "ftp" defined, then refresh the inetd process: refresh -s inetd This changed the default attribute of the FTP file. What is the use of RMSS commands in AIX, platform, model, RS6000, PSeries software version, AIX V4 problem AIX's RMSS commands? How to use RMSS commands? Solution RMSS is the basis of existing physical memory size Upload the physical memory size of the server without unplugging or replacing the memory chip. By running the same application under different memory, you can determine the size of the memory required to apply during normal runtime. For example: #RMSS -C 2048: Analog 2GB memory #RMSS -P: Displays the size of the current analog memory #RMSS -R: Reset memory so that it is restored to the actual memory size in AIX 4.x how to clear the pending TTY (-) environment RS6000, AIX 4 .x problem How to clear the pending TTY solution in AIX 4.x For the convenience, the following example assumes that the pending TTY port is TTY0. 1. Determine the process that is currently hangs: PS-EF | GREP TTY0 This command assumes that the content is as follows: root 12345 1 0 AUG 29 0 / path / program_name process ID (PID) is "12345". Kill the process: kill -9 12345 Run the PS-EF | GREP TTY0 command again to view the process Whether it is killed. Don't use the "-9" option to kill the Slattach process because it may cause the AIX operating system to hang. Note: If the process is "getty", use the following command to kill the process: pdisable tty0 If the above command can't succeed in killing the process, TTY is still hang, you can use the second step.
2. Execute the following command: fuser -k / dev / tty0 This command will kill all processes running at this port and display its PID (process ID). If the above command can't succeed, Tty is still Suspend, you can use the third step. 3. On the keyboard of the pending terminal, type "Ctrl Q". If TTY is still hang, use the fourth step. 4. Depending on the device (connection) of the connection port. In some cases, the port can be released. Note: Some of the commands in front may not take effect and report the "equipment busy" error. This is because some processes are running on TTY. If the above steps still cannot release the hang of TTY, you can finalize this process by weight-up the IIX release kernel.
The logical name of the AIX expansion card and the corresponding relationship environment product, the PSeries, RS6000 software version, the AIX issue in IBM, the same type of extended card can plug in multiple blocks, but how AIX determines each card The slot of the slot can be used to determine their relationships: 1. Check the logical names and numbers of the same type of card. For example, determine the name of the Ethernet card in the server: # lsdev -cc adapter | GREP EN EN EN EN ENT0 AVAILABLE 1A- 08 IBM 10/100 Mbps Ethernet PCI Adapter (23100020) ENT1 Available 21-08 IBM 10/100 Mbps Ethernet PCI Adapter (23100020) 2. Determine the slot corresponding to the value. Such as: # lscfg -VL ENT0 Device Location Description ENT0 1A-08 IBM 10/100 Mbps Ethernet PCI Adapter (23100020) Serial Number ............... 22010344 fru number ......... ......... 091H0397 Part Number ................. 091H0397 Network Address ........... 000629dc698c displayable message .. ....... PCI Ethernet Adapter (23100020) Device Specific. (YL) ........ P1-i3 / E1 I3 indicates that this network card is inserted on the third slot. # Lscfg -vl ent1 Device Location Description Ent1 10-80 IBM 10/100 Mbps Ethernet PCI Adapter (23100020) Network Address ........... 0004ACE4AF6D DisplayAble Message ......... PCI Ethernet Adapter (23100020) Device Specific. (YL) ........ P2 / E1 is a network card integrated on the motherboard. Such as How to make mirroring to improve system high availability and performance Environment RS6000 issues How to mirror system to improve system high availability and performance answers, to improve system high availability, that is, when one of them is corrupted or When the data area is unavailable, the system automatically uses its mirror disc or the mirror data area for normal business operations. There are three ways to do in the database application based on the RS / 6000 system. The first way is directly pair of RAID10. The hard disk is mirroring, you need to increase the corresponding adapter card support. You can make a mirror of naked devices or file systems. The second way is to make RAID1 through the AIX operating system, can only make mirroring file systems. The third way is through the database The system is mirroring, which can be mirrored to naked equipment or file systems. For these three ways, it is generally recommended that everyone will take better system performance and high availability. This article mainly discusses the use of RAID1 to do mirroring The number of performances. When making a RAID1 mirror, the logical volume specified in the volume group can be used alone, or the entire volume group can be mirrored. When the logical volume specified in the volume group, it is best to request the volume. There are three or more hard drives to ensure high availability of data. If mirrored to the entire volume group, there is no limit on the number of hard drives in the volume group. In addition, it is best to be in different hard drives, when a piece of hard disk is damaged. It is still possible to improve the high availability of the system. The volume group is best requiring this volume group when the logical volume specified in the volume group is described below. The volume group has three or more hard drives.
In the RS / 6000 system, there is at least one VGDA in the physical hard disk in the VG (volume group) (a volume group description area, which describes the physical and logical volumes on the hard disk). VGDA has the number of hard drives The following rules: A volume group has only one hard drive: the hard disk has two VGDAs. A volume group has two hard drives: the first hard disk has two VGDAs, the second hard disk has a VGDA. One volume group has three or three pieces The above hard drive: Each hard disk has a VGDA. In the AIX system, Quorum (the ratio of available VGDA in a volume group) must be above 51%, the volume group can be used. For only two hard drives, if If a hard disk is damaged, only 33% of VGDA is available. If the second hard disk is damaged, 66% of VGDA is available. For a volume group with three or more hard drives, if a hard disk is damaged, at least 66% VGDA is available. When mirroring the logical volume specified in the volume group, if only two hard drives in the volume group, when the first hard disk is corrupted, the VGDA is only 33%, which will cause the volume group to be unavailable, so Mirroring Loss to ensure high availability of the hard disk. If the volume group only has two hard drives, you can turn off Quorum, even if the first hard disk is damaged, the entire volume group is not available, at this time The second hard disk, but the data of the second hard disk will not be mirror. Thereby it is possible to bring the risk of data loss. The second hard disk is damaged when the volume group is not available to cause data loss. Therefore, the volume group When the logical volume specified in the mirror, it is best to require that the volume group has three or more hard drives to ensure high availability of data. Debug Mode boot AIX environment RS / 6000 AIX V5.1 Question Debug Mode boot AIX answer 1. System Requires a TTY Console 2. #bosbot -ai / dev / ipldevice 3. #SHUTDOWN-FR KDB Command Environment RS / 6000 AIX 5L Question Start sendmail solution AIX 5L in KDB replacing the Crash command of AIX V4, as system Debugger and DUMP analysis How do tools in AIX for a network card with multiple IP addresses? Environmental products, PSERIES, RS6000, software version, AIX4.3.3 Questions Due to the environmental requirements of the application, need to configure multiple IP addresses on a single network card, can I implement in AIX? Solution can. Use the command ifconfig. Its syntax is: ifconfig network_interface second_ip_address netmask your_netmask alias does not record this definition in ODM, so the definition will be lost after shutdown. If necessary, you can add this command to the startup file (/ ETC / RC. NET). If the second IP address is 9.185.43.135 available # ifconfig EN0 9.185.43.135 Netmask 255.255.255.0 Alias When the IP address is no longer needed, it can be removed from the system. #Ifconfig EN0 9.185.43.135 Netmask 255.255. 255.0 Delete or delete from the /etc/rc.net file. AIX kernel parameter adjustment VMTune -p -p (2) environment AIX 4 Question AIX kernel parameter adjustment VMTune -p -p (2)? Solution -P minperm If the number of file pages in physical memory is low (File Pages) This value, the page replacement algorithm will replace the file page and program page (Computational Pages), and the default value of MinPerm is about 20% of physical memory. -P Maxperm If the file page in physical memory is higher than this value, the page replacement algorithm will replace only file pages, and the default value of MaxPerm is about 80% of physical memory. If the number of file pages in physical memory is between these two values, the page replacement algorithm usually only replaces the file page, but when the replacement rate of the file page is higher than the program page, the page replacement algorithm will replace the file at the same time. Pages and program pages.
AIX kernel parameter adjustment VMTune -f -f (3)? Environment AIX 4 Question AIX kernel parameter adjustment VMTUNE -F -F (3)? Solution -f minfree points out the lowest value of memory pages in Free List, this value The range from 8 to 204800. -F MaxFree When the idle memory in the system is less than MinFree, the system makes the page operation to increase the idle memory page. When the number of free memory pages is greater than or equal to MaxFree, the system changes the page operation to stop. The default value of MaxFree is minfree 8. The difference between MaxFree-minfree should be greater than equal to Maxpgahead. Note: A page size is 4K. Linux and PSeries / RS6000 Environmental Products, PSeries, RS6000 Software Versions, AIX, Linux Questions RS6000 / PSeries Server installed Linux? Applications How to transplant? Solution 1. RS6000 / PSeries' low-end servers (B80, 270, 170, 150) Install the Linux operating system. The system version used should be XX Linux on PSeries (provided by different Linux companies). The Linux application compiled. It is Linux core. 2. The middle and high-end servers in PSeries are currently unable to install Linux. However, you can install the AIX Toolbox for Linux Applications for Power System, which provides a Linux API interface, which is used by Linux applications that use the AIX core. 3. Programs compiled in the XX Linux on PSeries environment, transplantation To the AIX Toolbox for Linux Applications, you need to recompile and vice versa. AIX kernel parameter adjustment VMTune -m (5)? Environment AIX 4 Question AIX kernel parameter adjustment VMTUNE -M (5)? Solution -M Maxpin This value is pointed out The amount of physical memory that is capable of standing in the system in the system in memory is 80%, and at least 4m memory should be guaranteed to be used for kernel. AIX kernel parameter adjustment VMTune -r (4)? Environment AIX 4 Question AIX core parameter adjustment VMTUNE -R -R (4)? Solution -R MINPGAHEAD pointed out when to start the feature read function, this value should be 2 The multiple, the default is 2. -R maxpgahead points out the maximum number of pages read in advance, this value should be a multiple of 2, the default is 8, this value should be greater than the minpgabead, the maximum value is 512. The difference between MaxFree-minfree should be greater than equal to Maxpgahead.
How to determine a file system is the file system of Large File Enabled, the environment platform, the PSeries, RS6000, Software Version, AIX 4.3.3 Issues support Standard FileSytem in AIX 4.3.3, and LARGE File Enabled File System, how to determine one The file system is the LARGE FILED FILE SYSTEM or the STANDARD FileSytem? Solution can be viewed using the lsfs -q filesystem_name command. For example: #lsfs -q / home name nodename mount pt vfs size options auto accounting / dev / hd1 - / home JFS 131072 - Yes NO (LV Size: 131072, FS Size: 131072, FRAG Size: 512, NBPI: 4096, Compress: No, Bf: False, Ag: BF: False said is Standard FileSystem Bf: True Representation Large file enabled file System. How to run Update_all? Environment AIX 4.3 Question How to Run Update_all in the command line How can I run update_all in the system upgrade, if you need to run it on the command line, you can use the LSLPP -L command Generate a list of installed file sets in a system, put this list into a text file, edit this file to have the following form: bos.rte.install bos.sysmgt.sysbr ...... Use the following command to install: Installp -Agxd / dev / cd0 -e /tmp/install.log -f /
# lcfg -vl ssa0 device location description SSA0 11-08 IBM SSA 160 Serialraid Adapter (14109100) Part Number .................. 27h1204 fru number ........ ........ 34L5388 Serial Number ............... S1072088 EC Level ................... E28793 Manufacturer .............. IBM053 ROS level and ID ............ 8300 0000 loadable Microcode Level .... 05 Device Driver Level. ........ 00 Displayable Message ......... SSA-Adapter * Device Specific. (Z0) ........ SDRAM = 128 * Device Specific. (Z1) .. ... cache = 32 Device Specific. (Z2) ........ uid = 006094BF00003CDC Device Specific. (YL) ........ U0.1-P1-I1 / Q1 The card is configured with 128MB read caches and 32MB snapsuits. If you configure a snap-write cache, change the configuration of the SSA disk, make it a quick-write cache # Smitty Device SSA Disks SSA Logical Disks Change / show Characteristics of An SSA LOGICAL DISK HDISK? AVAILABLE 11-08-L SSA Logical Disk Drive Enable Fast -Write yes If 'enable fast-write' is NO, it is changed to YES. Support XWINDOWS to install those file sets (FileSet)? Environment AIX 4.3 or AIX 5.1 Issues Support XWindows minimum to install those file sets (fileset)? Solution Support XWindows requires the following panel set: x11.apps. * X11.base. * X11.compat. * X11.fnt. * X11.motif. * Run CDE, you need to install X11.DT. * If you want to use CDE emulation, You need to install x11.fnt.fontserver how to change the IP address environment RS6000, how to change the IP address answer if you use Smit mktcpip to change the IP address, and the previous address is still retained, The correct approach is smit tcpip --- Further Configuration --- Network interface ---- Network interface selection ---- Change / Show Characteristics of a network interface interface Go to the SENDMAIL environment RS6000, AIX V4 problem Start sendmail answer If you use Startsrc -s sendmail starts, sendmail will not be started as the daemon, you must start with startsrc -s sendmail -a "-bd" how to display the Greenwich Time Environment RS6000, how to display Greenwich Time Solution Date -U can display how Greenwich time opens the lock account environment: AIX platform: RS Software Version: AIX V4 Question User Setting an account If you connect 3 error, you will lock your account, but I don't know how to open it. .
Sign User Error Login Information Record in the / etc / security / lastlog file. Just change unsuccessful_login_count = 3 to unsuccessful_login_count = 0 to open the lock account. What are the IBM Informix database-level backups? Environment RS6000, IBM Informix IBM Informix Database Level Backup Which content is backed up? Solution On the IBM RS6000 series machine, system administrators generally do regularly to make backups of the operating system and backup of the database system. So what are you backed up when you do IBM Informix database-level backups? General IBM Informix database backups are divided into system backups and logical log backups. Some customers think that the system will back up the logical log file when making a system backup, which is incorrect. System Backup The data of the database system, including backup of the data of the root dbspace (rootdbs), data dbspace (DATADBS), does not back up the temporary dbspace (TEMPDBS), logical log, and unallocated roots DBSpace and data dbspace space. Logical log backup The logical log file of the system will be backed up. This shows that the system backup and logical log backup is completely different, and they cannot be replaced with each other. How to configure the IBM INFORMIX database temporary database space on the RS6000 Series machine? Environment RS6000, IBM Informix problem How to configure IBM Informix database Temporary Database Space on RS6000 Series? Solution When you install the IBM Informix database on the RS6000 Series, you will generally configure temporary database space to improve system performance. So why to configure and how to configure these temporary database space? For example, if the following is performed in the IBM Informix database, a temporary file or temporary table is generated: 1. Establish an index or use the sorting method; 2. Use "Order By" or "GRUOP BY" statement; 3 . When you create a temporary table using the "Select ... INTO TEMP ..." statement; these temporary tables or files are best placed in the temporary database space to improve system performance. If the database system frequently performs the above operation, it is best to create three or more size the same temporary database space how to change the host IP address parsing order Environment: RS / 6000 Software: AIX problem How to change the host IP address parsing order Solution General host The resolution order of the IP address is DNS, NIS, and this HOST file. To change this order, you can build a /etc/netsvc.conf file, plus a line in this archive: hosts = local, bind, NIS This host IP address will start searching from the local archive (/ etc / hosts), followed by Go again, DNS Server, and finally NIS Server. You can also change the order by performing export nsorder = local, bind, NIS to change the environment variable nsorder to change the order, the error message is 3004-687 Environment RS6000, AIX 3.2 - 4.x problem cannot increase the user, error message is 3004-687 Solution Check: Is there errors in the / etc / passwd file. Lost "Nobody" user entry or its format has an error. The entry should be: NoBody:!: 4294967294 :: /: Login failure number of environments RS6000 Question Login Fail Time Excessive Solution Excessive Number of User Login Failure, Excessive Failure Significance, users will not continue to log in, need to modify the failure login parameters in / etc / security / lastlog (unsuccessful_login_count).
See the corresponding relationship between the SSA logic disk and the physical disk RS6000 problem Look at the corresponding relationship between the SSA logic disk and the physical disk with SSAXLATE -L HDisk # or SSAXLATE -L PDISK # can see the corresponding relationship between the SSA logic disk and the physical disc Username Length Problem Environment RS6000 Problem User Name Length Question The User Name The length is eight, this limit cannot be changed how to determine how the application environment that causes the Core file, how to determine the application answer of the Core file, Core file is in the application The memory image recorded when crash, can be used by command lquerypv -h core 6b0 64, which application can be seen from the application of the Core file. Unlock Volume Group Environment RS000 Question Unlock Volume Group Answer When the volume group is locked, you can unlock the environment variable environment referenced by the initTab by command CHVG -U VG # to unlock the environment variables in inittabs INITTAB. The cause is due to customers There are many small files for hundreds of K, all file system inode is exhausted. Programs initiated in inittab, only reference the environment variables in / etc / environment, do not quote variables in / etc / profile, so you need to reference these variables in user-defined scripts, you need to be on the script Join the references to their references On a tape backup Multiple file environments RS6000 Questions On a tape Backup Multiple file solutions You need to use TCTL to roll backups, as follows: 1. DD if = / tmp1 of = / dev / RMT0.1 2. TCTL -F / DEV / RMT0 REWIND 3. TCTL FSF 1 4. DD if = / tmp2 of = / dev / rmt0.1 5. TCTL -F / DEV / RMT0 REWIND 6. TCTL FSF 2 7. ...... Recovery steps. Summer Time-System Environment RS6000 Question Summer Time Solution Answer April to August each year, AIX will use the summer time to use the summer time. You can use the ECHO $ TZ to see the time zone to determine, and the time zone uses a summer time to use the DT end. If you don't want to use, you can change via Smit - System Environment - Change Show Date And Time --- Change Time Zone Using System Defined Values, select NO in the pop-ups, select NO, select the corresponding time zone to restart The machine can be used. Passwd file backup Environment RS6000 Question Passwd file backup answer If you misuse / etc / passwd file, you can use the / etc / opasswd file to recover, / etc 开 O-start file is the backup file of the corresponding file. How to limit a user uses FTP service Environment AIX issues in AIX, how to limit a user use FTP service? Solution Edit / etc / ftpusers file, add the username you want to use to this file so that this user uses FTP services. In the AIX system, how to get some remote Chinese character AIX issues in the AIX system, how to get some relatively remote Chinese characters? Solution In the Chinese Chinese character library of AIX, 6763 Chinese characters in ZH_CN, and 20902 Chinese characters in ZH_CN. If the user uses some remote Chinese characters, it is recommended that the user selects zh_cn when the Chinese environment is installed. Does AIX support the RamDisk environment RS6000, whether AIX issues support RAMDISK? Can you use the memory to be used to increase access speed.
Solution can. AIX operating system supports ramdisk. You can use the mkramdisk command to create a ramdisk. The file name is / dev / ramdisk. The file system is created by command MKFS to use it. Use the rmramdisk command or reboot to remove RamDisk. What is the Inline log environment product, AIX platform, RS6000, psery question What is inline log solution Create a new log type for JFS2 file systems in AIX5L. This is the INLINE LOG - log and file system unique to JFS2 on the same logical volume. By using the Inline log, each JFS2 file system can have a stand-alone log device, not a log device for the entire volume group. In an environment where the file system is large, it is possible to improve the RAS (RELIABILITY AVAILABILITY ServiceAbility "feature: When the system shared log device, the corridation of the log device affects all file systems associated with it. This will not happen without using inline log. When you create a JFS2 file system, the default log is on the shared log device, set the "Inline log?" Option to "YES", and the JFS2 file system using the Inline log is created. How to increase the INODE Number of Environment: AIX Platform: RS Software Version: AIX V4 Problem Users need to generate new files, the system reports are insufficient, but the DF -K output display space is used as a 43% answer problem. Since the customer has a small file with many small files, all file system inode is exhausted. Solution Find / -Size 0 -Print Remove Unnecessary 0 byte file to increase the file system size (in view of the customer's% USED is 43%, this will waste a lot of space, not recommended) backup file, rebuild the file system, where parameters NBPI (NUMBER OF BYTES Per Inode) should be as small as possible, so you can get more inode notes in the same size file system: how much in Indore is determined by file system size and NBPI (Number Of Bytes Per Inode) The larger the system, the smaller the NBPI, the more inode, the more the files and directories that can be generated. What is the X-Window environment product, RS6000 platform, Unix problem What is X-WINDOW Answer X-WINDOW is a powerful graphical user interface (GUI) in UNIX, is based on a customer-server application technology. Expressed as an application Run on a powerful, easy and maintenance server, and the output of the screen is displayed on another workstation. X-WINDOW technology includes two members: X-Server and Window Manager. X-Server controls images and windows Track the operation of the mouse and keyboard. One X-Server controls multiple windows .Window Manager is used to display the menu and boundaries of the window, providing the window's mobile, conversion, maximum, minimizing operation. How to customize the application performance System Memory Environmental Products: AIX Platform: RS Software Version: AIX V4 Problem Users need to debug applications under different memory configurations. The answer operating system provides such applications to meet customer needs.
RMSS -C Memsize (Memory required to debug) RMSS -P Displays the current memory configuration RMSS -R to resumption to the actual memory size of the system: #RMSS -P Simulate Size IS 512 MB. #RMSS -C 128 Simulate Memory Size Changed to 128 MB. #svmon -g Size Inuse Free Pin Virtual Stolen Memory 131061 121681 9380 9417 31681 9380 9417 31681 9584 PG Space 264192 17306 Where Stolen's memory is 512MB and 128MB. When the program is completed at 128MB memory, the system actual memory size is restored. #RMSS -R #SVMON -G Size Inuse Free Pin Virtual Memory 131061 26245 104816 9417 31604 PG SPACE 264192 17306 The memory has been restored. Nuclear issue with AIX 4.3.3. Environmental Products: AIX Platform: RS Software Version: AIX V4 Problem 1. How many kernels I have currently run? 2. Can my current machine support 64bit app? Solution Bootinfo -k 32 operating system running in 32-bit kernel 64 operating system running in 64-bit ker-core bootinfo -y 64 your machine can support 64-bit and 32-bit applications 32 Your machine only support 32-bit app Note: When bootinfo -k When 32, bootinfo -y is 64, you can use SMIT activation to support the 64-bit application SMIT System Environments Change / Show Characteristics Of Operating System How to Implement Doskey on AIX: AIX Platform: RS Software Version: AIX V4 Problem Customers need to implement similar features similar to Doskey in the AIX operating system to implement similar functions. When the user wants to repeat a long command, just press ESC K, press K to roll a command, but press J to roll a command, then enter the return will be completed. Best, you can use a method similar to using VI to edit the command you see to reach the purpose of random adjustment. Only a simple command saves valuable time. Set -O VI can be added to .profile when needed. Another way to edit the large text files for large text files: AIX platform: RS Software Version: AIX V4 Question VI Default EDIT Maximum Files You cannot exceed 1,048,560 row solutions in user directory. Perfilm. = XX000000 This, do not use the VI -Y XX000000 how to modify the attribute of the terminal every time the VI is enabled to adapt to special needs environment products: AIX platform: RS Software version: AIX V4 problem customers have a developed application, where it is required The response to Ctrl Y is to complete a specific function. But when the customer is implemented, it finds that it is quit by a Ctrl Y program. Answers the customer use the Telnet terminal, where the properties of PTY are required to modify.
#Smit pty change / show character to be configured at boot time --------------- Available ----- Maximum Number of Pseudo-Terminals ----- ---- [256] ---------------- # Maximum Number of BSD Pseudo-Terminals ----- [16] There are no many options like TTY: # Smit Tty Posix Special Control Characters: Interrupt Character ------------------------ [^ c] Quit Character ----------- ------------------ [^ /] Erase Character --------------------------- - [^ h] Kill Character ----------------------------- [^ u] end of file character ----- ----------------- [^ D] End of line character ---------------------- [^ @ ] 2nd end of line character ------------------ [^?] Delay suspend process character ------------ [^ y] Suspend Process Character ------------------ [^ z] Litral Next Character --------------------- [^ v ] START Character ---------------------------- [^ Q] Solution: Turn Suspend Process Character ^ y to other unwanted Special buttons such as: #stty dsusp ^ @ #stty -a speted 9600 baud; 24 rows; 80 columns; EUCW 1: 1: 0: 0, SCRW 1: 1: 0: 0: INTR = ^ C; quit = ^ / ; ERASE = ^ h; kill = ^ u; EOF = ^ D; eol = ^ @ EOL2 = ^ @; start = ^ q; stop = ^ s; susp = ^ z; dsusp = ^ @; reprint = ^ r discard = ^ O; werase = ^ W; LNEXT = ^ v -parenb -Parodd CS8 -CSTOPB HUPCL CREAD-CS8 -PAREXT -IGNBRK BRKINT IGNPAR -PARMRK -INPCK -IUCLC-IXON-IXANY -IXOFF IMAXBEL ISIG Icanon -xcase echo echoe echok -ectl -noflsh -tostop echock echock echock echock echock echock echock echock echock pDING iexten opost -olcuc online ocr -ocrnl -onocr -onlret -ofill -ofdel tab3 This is the program when the customer's application is pressed by Ctrl y. Will not quit from usus. How to use Grep Some advanced options to better manage system environment products: AIX platform: RS Software version: AIX V4 problem How to use Grep Some advanced options to better manage system answers more than the output of the following two commands, we are not difficult to find GREP -P excellent features.
It does not only list the current ranks of the keyword we have to find, and the relevant information is listed. #LSCFG -VP | GREP CPU Device Type: CPU Device Type: CPU #LSCFG -VP | Grep -p CPU Name: PowerPC, 604 Node: PowerPC, 604 @ 0 Device Type: CPU Physical Location: P1-C1 Name: PowerPC, 604 Node: PowerPC, 604 @ 1 Device Type: CPU Physical Location: P1-C1 Another Very Very Very Valprise Grep -i #LSLPP -L | GREP XLC NONE #LSLPP -L | GREP -I XLC XLc.Aix43.RTE 4.0 .2.1 COMMITTED C SET Runtime for Aix 4.3 Xlc.cpp 4.3.0.1 Committed C for Aix Preprocessor Xlc.msg.en_us.cpp 4.3.0.1 Committed C for Aix Preprocessor Xlc.msg.en_us.rte 4.0.2.0 Committed C Set runtime xlc.msg.zh_cn.rte 4.0.2.0 committed c set runtime xlc.rte committed 4.0.2.0 committed c set runtime This, we don't have to die with a lot of cases of hard back, improve work efficiency . I believe that GREP has a lot of powerful features waiting for us to apply. AIX and Linux's alliance content will be described in this article to develop in Aix Affinity With Linux and how Linux developed under the AIX operating system and how to transfer freely developed Linux applications to the AIX operating system. The purpose is to let more friends. Use Linux on the AIX system platform and feel the charm of the AIX operating system in overall performance. We look forward to having more better Linux applications to be ported to the AIX operation platform, making the AIX operating system more colorful, let us work more easily. Part IIX Affinity With Linux Development AIX Affinity This principle introduces the third part of the AIX Toolbox for Linux's latest version of the new version, installation, including tools, and basic use of the fourth part for development suggestions, Operating system AIX 4.3.3 OR AIX 5L Text Part 1 AIX Affinity With Development Situation IBM is divided into two phases of AIX Affinity With Linux. In the first phase, release AIX Toolbox for Linux Applications, which mainly includes GNU and other common development tools to help developers compile programs on the AIX system, and in the two industries the best operating system platform, ie Smooth technology transplant between AIX and Linux. Since the application runs in the AIX environment, customers can get the flexibility of Linux and the advanced performance of the AIX operating system, including workload management, advanced system management tools, and high security. The second phase is to provide more Linux's API and header files in the latest release of the AIX 5L Version 5.1 operating system to support the compatibility of the source files, so that two different operating systems have more interoperability. A higher level of compatibility. So what can we do with AIX AffInity for Linux? 1. Use the free software developed on the AIX system, for example, run popular Gnome and KDE graphics desktops, run other multimedia tools, and so on.
2. Use powerful redhat package manager package tool management applications. 3. On the AIX system, use the GNU and Linux development tools to develop new applications. Part II Affinity This principle introduces that the purpose of AIX Affinity With Linux is not to provide a simulated layer for Linux applications to run. It is the meaning of getting AIX's compatible binary local code after recompiling Linux applications. And use all system features such as reliability, scalability, and availability. That is to say, we provide a powerful cross-platform compiler and a number of compatible API to ensure that Linux is successfully transplanted on the AIX system. Since AIX design is developed from the network, host hardware system, the operating system fully complies with the open system principles, so on current AIX 4.3.3 and AIX 5L Version 5.0, use AIX Toolbox for Linux, just by simple compilation Many applications in Linux are implemented on the AIX platform. In this way, we don't have to waste a lot of manpower, and the material is re-developing a lot of mature applications. We have continuously reuse classic code, you can put our limited energy into a more exciting, more needed place. When using AIX AffInity with Linux, we will also think of its impact on performance. AIX Affinity With Linux In the design phase, it is desirable to provide optimized performance to applications, including rights that make Linux applications and local applications enjoy the same access to resources. Especially the AIX 5L Version 5.1 operating system provides higher-level applications and compatibility between operating systems. When we consider performance, we should also think of what we want to develop, the front end or the background. Large applications in the background are also relatively suitable for AIX applications, but the front-end human-machine interface uses Linux to play its own specific performance, and also reduces the possible performance impact. Part III AIX Toolbox for Linux Latest Edition, Installation, and Basic Using Many GNU Development Tools have been ported to AIX 4.3.3 and AIX 5L Version 5.0, there are more in new AIX 5L Verison 5.1 operating systems. The development tool was successfully transplanted. These include (not all): Application Development: GCC, G , GDB, RPM, CVS, Automake, AutoConf, Libtool Development Library: NCURSES, READLINE, LIBTIFF, LIBPNG, LIBJPEG, SLANG, FNLIB, DB, GTK , QT programming language : Guile, Python, TCL / TK, REP-GTK Desktop Noodle: GNOME and KDE GNU Tools: Gawk, M4, Indenter Sed, Tar, Diffus, FileUtils System Shell: Bash2, TCSH, ZSH System Tools: Emacs, Vim, BZIP2, GZIP, Git, ELM, NCFTP, RSYNC, Wget, LSOF, LESS, SAMBA, ZIP, UNZIP, ZOO graphics application: ImageMagick, Transfig, Xfig, XPDF, GHOSTScript, GV, MPAGE, GIMP These tools are available for Linux developers A great development environment. It is worth mentioning that most of them use easy-to-install file formats, which is the RPM package developed by Redhat. Its main role is to set up a smooth bridge, closely unite the two different operating systems of AIX and Linux, and discover their greater potential.
AIX Toolbox for Linux download URL: http://www-1.ibm.com/servers/aix/products/aixos/linux/download.html This page has many people who have a dream of how many people dream of. As mentioned earlier, we have to manage applications with RedHat Package Manager (RPM), so we must first install RedHat Package Manager. RedHat Package Manager downloads from below: ftp://ftp.software.ibm.com/aix/freesoftware/ AIXToolBox / installp / ppc / rpm.rte installation, running installp -qacxgd rpm.rte rpm with root user. The RTE installation process will collect information about the shared link will last for a few minutes. Waiting patiently, don't interrupt. If the error is not installed, then before the next installation, remember to run installp -c to clear the backup incomplete installation. (I shared 10min35sec on a F50, 4.3.3.) Redhat package manager, you can install other AIX Toolbox for Linux basically use, for details, and related information, can be used in detail, and can go to www.rpm. View on ORG. Simple parameters are as follows, -i: install -e: erase -q: query --help Help Example: To install GCC 2.9, then go to http://www-1.ibm.com/servers/aix/products/Aixos/ Linux / download.html Download RPM package GCC-2.9.Aix43.010216-1.Aix4.3. PPC.rpm Run RPM-IVH GCC-2.9.Aix43.010216-1.Aix4.3.ppc. RPM is where parameter V is to display details during the installation process. The parameter h is to display the installation progress during the installation process. After a minute, you can already enjoy the powerful features of GCC 2.9. If you don't have to let me go, everyone will experience it. Part IV Part 1. Since AIX is compliant with the POSIX standard and UNIX98 authentication, Linux has not passed the authentication, so we must try to use the standard API during the development process, so applications can be used in AIX as long as the compiler of GCC, G can be used. . It is very important to check which API is only supported by Linux, but it is not supported by AIX, which avoids unnecessary trouble. 2. Since AIX 5L is supporting the Power Series CPU and Itanium CPU, we have developed, and otherwise note is the code that deals some and hardware underlying. In these programs, we need to use generic byte processing call to ensure that applications can be migrated with different platforms, such as porting the Power series to platforms with Intel CPUs, which ensures application Strong availability. 3. If your application is related to the path, but there is no program specified in the AIX system, the source code of the application must be modified and the correct path is directed. So I suggest you develop whether your code is feasible and conducts it.
