Linux

Centos enters single-user mode to modify the fstab file 1. fault description RAID 0 failure causes/etc/fstab to kill at system startup 2. change/etc/fstab in single-user mode. press e when the system enters centos for several seconds to enter GRUB

Solve the problem that the touchpad cannot be used after logging on to the system in ubuntu 12.04. My current version is Acer 4741G 432g32. After the ubuntu is updated, I found that the touchpad can be used normally during system login, but it

Programmer self-cultivation-Linux environment variable principle and shell Overview: working in linux, this often happens: 1) run a command and prompt-bash: [commandname]: command not found2) executes an ELF Executable File: xyz @ hnode02 :~

Linux system management command ------ w Linux System Administrator sometimes wants to know what the user on the machine he manages is doing, and the Linux management command can help us do this kind of work, we can use the Linux management command

Linux_001 _ basic CentOS operation open a folder in the same windowEdit-> Preferences-> Behavior-> Always open in browser windows Shell is divided into CLI and GUI: GNOMECLI: BASH 1. user $: common user #: root User su-, switch to root user sudo run

I used ubuntu 11.10 to access the Internet through a vro. I found that I was unable to access the Internet through a network cable. I used to only use a wireless route. Yes, so I searched for it online. The solution is as follows: modify two files.

Install and uninstall the rpm package and yum in CentOS. 1. Install the rpm package: 1. install a package # rpm-ivh 2. upgrade a package # rpm-Uvh 3. remove a package # rpm-e 4. installation parameter -- force installation even if it overwrites

Complete/correct exim server configuration method General debian hosts have installed exim. If not, run apt-get install exim4 configuration method 1 first: run dpkg-reconfigure exim4-config first option select first: internet site; mail is sent and

Ssh password and passphrase 1. Use the default path ssh-keygen-t rsa and enter passphrase. 2. scp/root /. ssh/id_rsa.pub remote:/root /. for ssh/authorized_keys, enter the password of the root account on the remote machine 3, eval 'ssh-agent' 4, and

In Linux, frequent File Access by clearing memory and Cache methods will cause a significant increase in the system Cache Usage $ free-m total used free shared buffers cached Mem: 3955 3926 28 0 55 3459-/+ buffers/cache: 411 3544 Swap: 5726 0 5726

Changing the NIC name under fedora16 today, due to an error in network startup, I searched online and found that most people's Nic names are eth0, but my name is p3p1, so I want to change it to eth0. then I google it and found that the device name

In linux shell, we sometimes need to copy a file in batches. The same principle applies to batch users. The knowledge used: test or [: can be used to compare the arithmetic comparison-equal eq-ne-gt greater than-ge is greater than or equal to-lt is

In ubuntu12.4, tftp settings are excellent. Due to debugging the 6410 Development Board, you need to build a tftp server under ubuntu12.04. After searching for multiple ubuntu files, you can find more or less problems, the following is my

The linux environment variable set env export is used to describe the set, env, and export commands, difference [root @ localhost root] # a = test [root @ localhost root] # echo $ atest [root @ localhost root] # set | grep aa = test [root @

In linux sudoers, sudo, which restricts useradd, is familiar to everyone. It allows an account to execute some applications as other identities. The problem we encountered today is that we want tom users to manage system accounts. However, if tom

Related Configuration Optimization after LNMP is installed in Linux: 1. Enable Nginx + PHPvim/etc/rc upon startup. local/home/mysql startulimit-SHn 65535/usr/local/webserver/php/sbin/php-fpm start/usr/local/webserver/nginx/sbin/nginx 2, optimize

[CentOS] Installation Software:/lib/ld-linux.so.2: bad ELF interpreter solution environment: [orangle @ localhost Downloads] $ uname-m & uname-rx86_642.6.32-220.el6.x86_64 [orangle @ localhost Downloads] $ cat/etc/redhat-release CentOS release 6.2

[ZZ] Linux redirection file/dev/null indicates an empty Device File> indicates the redirection location. For example, echo "123">/home/123.txt 1 indicates stdout standard output, the default value of the system is 1, so ">/dev/null" is equivalent to

WinXp + ubuntu unmount ubuntu because the startup Item after xp and ubuntu are installed is started by grub, If you directly format ubuntu, xp cannot be started. You can choose to repair xpMBR and then delete the linux partition. Step 1: Download

Install lamp environment in ubuntu 12.04 1) install LAMP> sudo apt-get install apache2 mysql-server mysql-client php5 php5-gd php5-mysql to configure the MYSQL-SERVER password. 1.1 after the installation is complete, the configuration file directory