Linux

Broadband dialing for ubuntu wireless connection needs to connect to a wireless router to access the internet yesterday, but I did not expect to connect to the wireless router, but still need to make adsl dialing to access the Internet, however, the

Cron is a scheduled execution tool in linux that runs jobs without manual intervention. Since Cron is a built-in service in Linux, but it does not automatically get up, you can use the following methods to start and close this service: /sbin/service

Linux source command: The source command is also known as the "dot command", that is, a dot symbol (.), which is an internal bash command. Function: enables the Shell to read the specified Shell program file and execute all the statements in the

Shell note control structure if statement: Shell code #! /Bin/bash www.2cto.com # if statement format: # Put if and then in different rows, and align the fi required for else and end with them horizontally if ["$ {1}" = ''] then echo no argument

Test options and test commands for shell notes: Shell code #! /Bin/bash www.2cto.com echo file comparison operator echo operator Description Example echo-e filename if filename exists, it is true [-e/var/log/syslog] echo-d filename if filename is a

Super daemon Configuration File: xinetd. conf,/etc/xinetd. conf is the default configuration file of the xinetd service. # Vim/etc/xinetd. conf www.2cto.comThe following is an explanation:If a super daemon-managed service is started, but the set

Linux free view memory details root @ derek :~ # Free-m total used free shared buffers cachedMem: 24013 23516 497 0 155 2699-/+ buffers/cache: 20661 3352 23998 Swap: 10962 13036 www.2cto.com Mem: indicates physical memory-/+ buffers/cache: cache

Unix File Deletion retrieval method we know that the process of deleting a file in Unix is very simple, that is, releasing the data blocks occupied by index node tables and files and clearing the index nodes occupied by files, but the file content

Common commands-eval analysis 1. working Principle and usage www.2cto.com usage: eval command-line principle: eval is mainly used in the special processing of parameters. In general command lines, shell can only process parameters once, such as

Linux Kernel annotation-1/boot/bootsect. s. The code is from the kernel code/boot/bootsect of linux0.11. s this Code uses the asm Assembly format to start the code. The reason why AT&T is not used is that the AT&T Assembly at that time did not

In LINUX, we recommend that you use ext3, ReiserFS, and XFS log file systems. These two file system formats run in LINUX with high security. in case of unexpected downtime, you do not need to check any data consistency, this shortens the system

When building a linux FTP server, you may encounter various problems. Here we will introduce how to solve the linux FTP server access permission problem. Here we will share it with you.After we build an FTP server, the next step is to manage and set

  The installation script is as follows. At the end of the article, the package is downloaded, and the problems encountered are commented out in the script. #! /Bin/sh  # Mysql confMysql_user = root # mysql root User NameMysql_pwd =

Automatic yum installation:Yum install lrzszThe manual installation method is as follows:In customized linux, The rzsz package may not be installed on the system, which is especially inconvenient for transferring files using windows tools such as

Install software1. Install JDK (because JDK contains JRE, if JRE is installed when LumaQQ is installed, uninstall the JRE rpm package first to save MB of space)(1) installation:# Cd/tmp/myDown#./Jdk-1_5_0-linux-i586-rpm.binIn this way, JDK is

Background 1: You enter a sensitive organization one day to operate on linux. You want to know what the other party is doing Background 2: You can view videos in linux Through a graphical interface. Want to capture a handsome video memo $ Ffmpeg-f

 1. Here I selectCentOSOf course, you can choose your own version.Http://www.centos.orgOf course, it is worth noting that32Bitwise AND64Bit selection. If the machine meets64It is not necessary to use32Bit installation here is nothing to mention, try

Release date: Updated on: Affected Systems:Linux kernel 2.6.xRedHat LinuxDescription:--------------------------------------------------------------------------------Bugtraq id: 47185 Cve id: CVE-2011-1494, CVE-2011-1495Linux Kernel is the Kernel

Start Generally, tomcat/bin/startup. sh and sh tomcat/bin/startup. sh are executed. Stop Generally, execute the sh tomcat/bin/shutdown. sh script command. View Execute ps-ef | grep tomcat and output the following: Sun 5144 1 0 00:00:06

Root @ bt:/etc/ssh # sshd-generateGenerating public/private rsa1 key pair./Etc/ssh/ssh_host_key already exists.Overwrite (y/n )? YYour identification has been saved in/etc/ssh/ssh_host_key.Your public key has been saved