Linux

1. Create a special account that is not allowed to log on For example, if the account is used only for sending and receiving emails, set the user's shell to/sbin/nologin without creating the user's main directory. For example, in the system, the

1. Common files For example, to determine the/user/bin/file and/bin/date file types, run the following command: # File/user/bin/file/bin/date 2. Directory files Note: file names starting with "." indicate hidden files, which can be listed

**************************************** * ************************************ Error message Select the software package Skype that has been canceled.(Reading the database... the system currently has a total of 159798 files and directories

Hrtimer = high res Timer The kernel re-designs a software architecture for the high-precision timer, which can provide us with a nanosecond-level timing precision to meet the application that has an urgent need for accurate time.ProgramOr kernel

Install linux (FC3) from a hard disk)Lu_yi_ming (_ AT _) Sina.com 2005.2. 1. Download Linux ISOs into a FAT32 partition in windows. Extract 'isolinux 'directory from disk1, copy to somewhere in the partition. 2. Install a grub if still not,

Recently, I transplanted my company's server programs from windows to Linux. My server uses the ace epoll mode, which supports 2000 connections. After compiling the server program in Linux, run the program and report an error.After checking the

    1. Enable the video device It is very easy to open a video device. In v4l2, a video device is considered as a file. Use the OPEN function to open the device: 1. Enable the camera device in non-blocking modeInt camerafd;Camerafd = open

To make it possible for E2 to perform SyncML in Ubuntu. E2 is flushed to 49 p, and the mobile phone supports USB net connection. After the driver is installed in windows, Windows can smoothly connect to E2 with USB net, but cannot use the same

Software required in Linux: Download the token: Http://people.ee.ethz.ch /~ Oetiker/WebTools/MRTG/pub/mrtg-2.14.5.tar.gz Check whether the software package has been installed, for example: # rpm-Qa | grep GDIf it is not installed, it will be

Background: The newly installed centos5 version is released. Run the following command: svnserve -- version to obtain svnserve. Version 1.4.2 (r22196). It seems that the system has pre-installed subversion for me. ConfigurationStep 1) create a

At present, there are more and more users using ADSL Broadband Internet access. However, in some cases, a 56 K modem is still needed (currently, the ADSL modem cannot send or receive a fax ), the following describes how to troubleshoot dial-up

I. Configure the environment 1.1 Tomcat Introduction Tomcat is Apache One of Jakarta's sub-projects, as an excellent open-source Web application server, fully supports jsp1.2 and servlet2.3 specifications. Because of its advanced technology, stable

1. Create a user Useradd [Option] This command calls the/usr/sbin/useradd program. Example: useradd-u 550-G mysql-D/home/test-S/bin/bash-E 09/01/06-P mypassword Test -D user directory -S user's shell environment, usually/bin/bash   2./etc/passwd

The following describes how to install and configure NFS: 1. Enter ntsysv in the console as root and start the NFS and Portmap services in the system service options. The option Portmap service is required for NFS because it is a dynamic

Less will not load the entire file before viewing. Try to use less and VI to open a large file, and you will see the difference in speed between them.   In less, the navigation command is similar to VI. This article will introduce some navigation

InLinuxMediumGrepThe command is very useful.,It and MPs queue(|)Combined Use,Very powerful,Used to search for text files.If you want to find a string in several text files, you can use'Grep'Command.'Grep'Search for the specified string in the

As we all know, modern operating systems have implemented the "virtual memory" technology, which not only breaks through the physical memory restrictions in terms of functionality, so that programs can manipulate space larger than the actual

Enter the Linux Command to query in the address bar. For example, accessing the http://www.npcsc.com/man/wget gets instructions for using the wget command. Type Linux Command behind the site URL, eg: http://www.npcsc.com/man/wget, this will get the

1) minimum framework /* Example minimal character device driver */ # include static int _ init hello_init (void) { printk ("Hello example init/N "); return 0; } static void _ exit hello_exit (void) { printk ("Hello example exit/N"); }

For the life of a process, we can make a small summary using the image metaphor: with a fork, a new process is born, but it is just a clone of the old process. Then, with exec, the new process was reborn and independent from home, and started a