Linux

Cause Analysis of system time changesLinux has two types of time: system time and hardware time (BIOS time ).The System reads the BIOS time every time it starts and assigns it to the system time. The system time will run independently, but the BIOS

Linux terminal command -- display file content 1.Cat: display file content as is 2. head: show start Head-n number filename is not added by default-n, show the first 10 rows 3.xxd: hexadecimal display data 4. touch: Create an empty file and modify

How to install wdcp: Let's talk about how to install wdcp and some precautions. 1. change the password of the new linux host: passwd 2. check whether the current version is what you need and whether the WDCP environment installation command is

The tool for testing, debugging, and performance testing that is readily available in linux is originally titled "testing, debugging, and Performance Tools of linux", but it is not appropriate, such as gdb mentioned in this article, many Linux

The Network File System Configuration Service NFS is used to develop applications in Embedded Linux, which is very different from the development method of applications in Windows. In Windows, you can directly use various integrated development

Use the client to log on to ftp 500 OOPS: cannot change directory:/root. You can use an ftp client on windows to try to log on. Generally, an error is reported. Invalid user permission error: Delete the root in the root and user_list in ftpuser. It

Linux/proc Virtual File System The/proc directory on Linux is a file system, that is, the proc file system. Unlike other common file systems,/proc is a pseudo File System (Virtual File System) that stores a series of special files in the current

Linux Embedded configuration real-time operating systemI. Establishment of an embedded linux development environment.To use linux for application development on the Development Board, you must first establish a development environment. Because the

Vim display Chinese garbled solution I use Ubuntu 12.04, in the use of vim to open the file type: "ISO-8859 C program text" file, the Chinese inside is garbled, this is because vim cannot automatically identify the file encoding type. You need to

Differences between linux soft connection and Hard connection 1. Linux Link concepts Linux links are divided into two types: Hard Link and Symbolic Link ). By default, the ln command generates a hard link. [Hard connection] Hard connection refers to

Iptables knowledge summary recently I used the iptables command in a job, mainly for port ing. I checked a lot of information on the Internet. Although there are many examples, I still had to understand it for several days. Here we will summarize

Rsync static files Synchronize files on server A to server B and server C. The rsync server has the following settings: (rsync installation is omitted) Configure rsync on server A as follows: 1. Install the rsync service, check that the rsync

Disk Partitioning in Linux, fdisk, and mkfs in Linux. in linux, you can select/boot/as the mount point path. About MB. In front of the hard disk. /: The root directory stores the basic system files. About 10-15 GB. Swap: swap partition for temporary

Centos6.4 install apache + ssl + svn vipyhd book I. Installation: yum install httpd-devel mod_dav_svn subversion mod_ssl. confirm that the svn module has been installed: mod_dav_svn # cd/etc/httpd/modules # ls | grep svn mod_authz_svn.so mod_dav_svn.

Use Nginx auto crop image auto crop using Nginx Image Auto crop conform to the specifications of the image method: Method 1: nginx built-in module HttpImageFilterModule: http://wiki.nginx.org/httpimagefiltermodulein compilation to take parameters --

Configure Ubuntu to use ldap authentication to pass ldap authentication to make it an ldap client. In this tutorial, the environment is ubuntu 12.04. I. Manual configuration method 1. Software Installation: during the installation of the Java code

Ubuntu tomcat self-starting apache-tomcat-6.0.28.tar.gz tomat version tar zvxf apache-tomcat-6.0.28.tar.gz switch path to tomcat bin directory. Tomcat self-starting: cp catalina. sh/etc/init. d mv catalina. sh tomcat open tomcat and find cygwin =

Many problems encountered during LAMP installation, phpmyadmin and adminer installation in Ubuntu are recorded here one by one to open the terminal and enter the command line. 1. install Apache1. open the Terminal 2. Enter the following command sudo

Starting with wdcp2.2, The memcached installation and background settings are integrated.However, to keep the minimum and simplest system, it is not installed by default. You only need to install it.Although memcached is used more and more, some or

Linux_5 command for obtaining Linux host information when the Linux System Administrator takes over a new server, if there is no good handover document, the host information we can get depends on ourselves. A lot of information can be obtained