Recently, the author reloaded over the Fedora Core 2, the installation type is Workstation, and does not have an X-Window environment. After installation, execute NTSYSV to set all the launching services of the system, found that there are some services to be more unfamiliar, so they write this article to make a simple summary of all system start-up services, I hope to share with you. Service Name Meaning ACPID Profile: / Proc / ACPI / EVENT Preset Ports: None Description: Advanced Configuration and Power Interface, new power management standards that replaces traditional APM power management criteria. Do you need to start: If you need to manage the power supply, then you need to start. Anacron Profile: / etc / anacron preset port: None description: an automated running task. Red Hat Linux Tools with four automation tasks: Cron, Anacron, AT, and BATC. When your Linux host is not all-day, this anacron can help you perform the work not performed during the "crontab" setting. For example, when your host will automatically turn off at 12:00 in the evening, the routine work is working in 4:00, and this time the routine work does not work. However, you can do it with anacron. Do you need to start: If the host has been turned on 24 hours, and the cron is running, then this daemon does not need to start. APMD profile: / etc / sysconfig / apmd preset port: None description: Advanced Power Management, Advanced Power Management. Traditional power management standards. The general system will support both APM and APMD simultaneously, but only load one when the system is loaded. For laptops, you can understand the "battery power" of the system. Do you need to start: If we use a desktop computer or a model that is turned on, it is not necessary to use this daemon. ATD profile: /etc/at.allow ketc/at.deny Preset Ports: None Description: An automated running task. Whether you need to start: usually need to start. But if you have been using cron, you can also do not start. AutoFS profile: /etc/rc.d/init.d/autofs Preset port: None description: Implement the disc, the floppy disk is automatically loaded. Do you need to start: Generally does not need to start. Chargen Chargen-UDP presets: TCP / UDP 19 Description: Character Generator Protocol, a network service, main feature is to provide a function similar to remote typing. More details: http://www.neetworksorcery.com/enp/rfc/rfc864.txt does need to be started: To close this service as soon as possible. CPUSPEED Description: Monitor system idle percentage, reduce or speed up the CPU clock speed and voltage to minimize energy consumption when the system is idle, and maximize the speed of execution of the system when the system is busy. More details: http://altlinux.org/index.php?module =sis iPhus&P?age=cpuspeed Do you need to start: You need to start. CROND profile: / etc / crontab preset port: None description: The daemon used to perform the routine command. Do you need to start: You must start.
CUPS configuration file: CUPS server profile: /etc/cups/cupsd.conf CUPS client profile: /etc/cups/client.conf CUPS printer profile: /etc/cups/printers.conf CUPS Class (Class) Profile: /etc/cups/classes.conf Description: Common UNIX Printing System, Public UNIX Print Support for Linux Provide printing. Do you need to start: If you don't install the printer, you don't need to start. CUPS-LPD Preset Ports: None Description: CUPS LINE PRINTER DAEMON ("LPD") provides printing. Do you need to start: If you don't install the printer, you don't need to start. Daytime Daytime-UDP Preset Ports: TCP 13 Description: Daytime Protocol (RFC867) is a simple protocol that enables the client to obtain date and time from the remote server. Do you need to start: Don't start. Echo Echo-UDP preset port: 7 Description: Server returns to customer data services. Do you need to start: Don't start. GPM configuration file: / etc / sysconfig / mouse preset port: None description: General Purpose Mouse Daemon, GPM provides mouse support for Linux programs such as MC (Midnight Commander). It also supports copy, paste operation, and pop-up menu under the console. Do you need to start: If you don't have to say it, it is recommended not to start. Iptables Description: Firewall. Do you need to start: You must start. Irda Infrared Data Association is an industrial standard for implementing infrared wireless data transmission. IrqBalance performs load balancing daemons for system interrupt requests in multiple system processor environments. Do you need to start: If you only have a CPU installed, you don't need to load this daemon. ISDN Integrated Services Digital Network, Integrated Digital Service Network. Provide support for ISDN devices. Kudzu hardware automatic detection procedure automatically detects whether the hardware changes, and performs hardware addition, deletion, modification, etc. MDMonitor is related to the RAID device. MDMPD related to RAID devices. Messagebus D-Bus is a library that provides one-to-one communication for two or more applications. DBUS-daemon-1 is an application that uses this library to implement the MessageBus daemon. Multiple applications can exchange information with other programs by connecting to the MessageBus daemon. More details: http://www.freeDesktop.org/software/dbus/doc/dbus-daemon-1.1.html Microcode_CTL can encode and send new micro-code to Kernel to update the Intel IA32 series processor (Pentium Pro, PII , PIII, Pentium 4, Celeron, Xeon, etc. - all P6 and higher, not including Pentium Classics.
More details: http://www.urbanmyth.org/microcode/ http://microcodes.sourceforge.net/ Netdump News Backup Dump Server, Remote Backup Server. Netfs Network FileSystem mounter, installation, and uninstall NFS, Samba, and NCP network file systems. NetPlugd Profile: /etc/netplug/netplugd.conf /etc/netplug.d/netplug Description: Network Cable HotPlug Management Daemon, NetPlugd is a daemon that monitors one or more network interface status when some event triggers Run an external scripter. More details: http: //people.debian.org/~enrico/netplugd.html Network activates all network interfaces when the system is started. NFS network file system. NFSLOCK NFS is a popular protocol through TCP / IP network sharing files that provide NFS file locking features. NTPD profile: /etc/ntp.conf Description: Network Time Protocol daemon, network time correction protocol. Simply put, NTP is a protocol used to keep the system and a precise time source time synchronization. Recommend you to see an article: "NTP- Let's accurate the computer time in the network" Published in December 2004 "Online Technology" Magazine p-63 PCMCIA PCMCIA card, support laptop PCMCIA equipment, such as modem, network Adapter, SCSI card, etc. The PortMap Portmap daemon serves RPC services such as NIS and NFS to provide dynamic port allocation. PSACCT includes tools for monitoring process activities, including AC, Lastcomm, Accton, and SA. Random Description: Quickly put the status of the system in random time to the scene file, for the system is quite important. Because after boot, the system will quickly return to the state before the boot. Do you need to start: You must start. Rawdevices is used to load the RAW device when using the cluster file system. Readahead readahead_early profile: /etc/readahead.early.files /etc/readahead.files Description: Readahead and ReadaHead_early are the latest daemons running in Fedora Core 2. Its role is to first read the files to be used in the launch system during the start system, and then execute in memory to speed up the startup speed of the system. The above two profiles saves a list of files that will be read to memory. RHNSD Red Hat Network Service. Inform you about official safety information and patch your system. RPCGSSD RPCIDMAPD RPCSRCGSSD Description: GESTION NFS V4 is a new feature added in Linux 2.6 kernel. Do you need to start: You don't need to start. Rsync Remote Sync, Remote Data Backup Tools. Saslauthd uses SASL's certification daemon. Sendmail mail server. Services is an internal XineTD service that is used to listen to the event. SGI-FAM implements real-time data image. Monitoring file changes, providing an application API interface for timely notification when the specified file fire catalog changes. Smartd Self Monitor Analysis and reporting technology system, monitoring your hard drive failure.
