The strange system crash feature In addition, Windows 2000 has a strange feature that uses the system's end users to press the right Ctrl, and the PRESS two scroll lock keys can easily let the entire Windows2000 system completely crashed. But at the same time, in C: / WinNT / Down Dump Complete Current System Memory Record, the memory record file name is Memory.dmp. Of course, this strange feature is closed by default, but we can activate it by modifying the registry: 1. Running the regedt32.exe (Windows2000 32-bit Registry Editor) 2, select the primary key: HKEY_LOCAL_MACHINE / then Find system / down CURRENTCONTROLSET / Select Services / Enter i8042PRT / Prameters 3, create a double-byte value 4, name CrashonCtrlscroll 5, and then set a value that is not zero. 6, withdrawal, after this, you can try to make the system crash, press the effect after pressing the button, the following information will appear: *** STOP: 0x000000E2 (0x0000000000, 0x0000000000) It is worth noting that this strange feature also exists in WindowsNT4, I don't know if it is a small feature of Microsoft programmers. However, if there is a hacker or virus, it is very dangerous.
Telnet's Denial Service Attack Windows Telnet has always been one of the favorite network utilities of the network administrator, but a new vulnerability indicates that the Telnet in Windows2000 is guarding the process, it has been initialized. It is easy to receive an ordinary denial of service attack without being reset. In February 2000, the refusal service attack almost became the nightmare of all large websites. After the Telnet connection, in the case where the initialization dialog has not been reset, after a certain time interval, if the connection user has not provided a username and password, Telnet's dialogue will time out. The connection will be reset until the user enters a character. If the malicious user is connected to the Telnet daemon of the Windows2000, and if the connection does not reset, he can effectively reject any other user to connect the Telnet server, mainly because the maximum number of customer connections in Telnet at this time is 1. During this period, any other user who tries to connect to the Telnet server will receive the following error message: Microsoft Windows Workstation Allows Only 1 Telnet Client LicenseServer Has Closed Connection checks the "List Current User" option does not show the timeout session, Because the session has not successfully passed the certification.
