Linux

The sendmail sender's mailbox setting command has previously encountered the method of setting the sender's suffix. This migration server forgot to record 1 from the beginning: the first method is to modify/etc/hosts, it is said that sendmail uses

Ubuntu root account enabling and login problems ubuntu root users are disabled by default, You need to manually open the problem, in fact, all operations under ubuntu do not use the root user, because of the rational use of sudo, this avoids the

The comment format of the shell split analysis log file is as follows :.......................... .. xxx. xxx.10.59 db1059 mynbdpdatadb. idc4. dbname R620 master IDC2 Y Yxxx. xxx.11.59 db1159 mynbdpdatadw. idc4. dbname R620 slave IDC1 Y Yxxx. xxx.10.

Centos 6.4 x64 install bugfree Step 1: Download xampp-linux-1.8.1.tar.gz [root @ SVNMANAGER ~] # Tar-zxvf xampp-linux-1.8.1.tar.gz-C/opt [root @ SVNMANAGER ~] # Yum install netsta [root @ SVNMANAGER ~] # Yum install-y glibc * i686 start xampp [root @

One of linux Performance Tuning: disk partitioning policies for servers, whether in windows or linux, affect system performance. after partitioning a disk, It is formatted as a system file in a certain format. Finally, it is stored in user or system

Centos 6 install KVM configuration 1. Install System Configuration 1. When installing the system, select minimal for minimal installation, select the custom configuration (Customize now) package to install, and then next. 2. Select "constraint

Use the logrotate that comes with the system to cut the nginx log Summary: this stuff can cut any log, not just the NGINX log, it is very easy to use. Logrotate is a log file management tool. It is used to delete the old log file and create a new

In linux, the command line mail method 1. the simplest method is: mail-s text ** @ mail.ustc.edu.cn. The result of this command is to send an empty message titled text to the mailbox, however, this type of mail is often treated as spam. If you do

Redhat Linux FTP Configuration File Transfer Protocol (FTP: FileTransfer Protocol) enables files to be shared between hosts. FTP uses TCP to generate a virtual connection for controlling information, and then generates a separate TCP connection for

In Linux based on bacnet-stack-0.8.0 engineering, bacnet protocol packet is sent through wireless network card. linux environment is Ubuntu 12.04 + USB wireless network card (09 annual production of mercury MW54U, relatively old) 2. after compiling

When XManager connects to Linux, different versions of linux are located in different locations with different file names. In red hat 4, step 3. Find/etc/inittab and change the default level to 5id: 5: in step 2 of initdefault,

You do not have the root permission to install vim. download the source code www.vim.org/download // to download my vim-7.2.tar 2. decompress tar xvf vim-7.2.tar3.configurecd vim-7.2/make ditclean // This is very important, you can clear all the

The AIX host monitoring script monitors the CPU, MEMROY, IO, NET, HACMP, and error report of the host. Monitors tablespaces, jobs, and ALERT logs of databases. 001 #! /Bin/sh002 003 # load the configuration file first. If the configuration file does

OpenSSH common users cannot log on to several situations solution 1 authentication method is not supported, such as the client login prompt as follows: [www.linuxidc.com @ CentOS-6-37 ~] $ Ssh monitor@192.168.1.5 Permission denied (publickey,

In linux, the user master of a file f1 is user, and the user group is group code.Chown user: group/path/to/f1 for example. the previous owner and group of profile are both rootroot @ cyper-pc:/home/dasusr1 # ls-al/home/dasusr1 /. profile-rw-r -- 1

Shell practice: use shell to implement squid daemon 01 use shell to implement squid daemon 02 check the squid service status every two minutes. If the squid service is no longer running, start it, scripts for daemon 03 are as follows: 04 #! /Bin/sh05

Centos -- yum configure local data sourcesPreparation tool: centos installation Image File 1. mount the image file. I will use the virtual machine to set it here. The device status has been checked. 2. copy the image file to the server directory.

LVS-Real Server script 01 #! /Bin/bash02 03 # Parameters04VIP = 192.168.22.505 06 case "$1" in07 start) 08 echo "Starting LVS Real Server... "09 10 # Bind Virtual IP Address11/sbin/ifconfig lo: 0 $ VIP netmask 255.255.255.255 broadcast $ VIP

  Previously, VMware dhcp was used for dynamic allocation, but the IP address is easily changed. In the case of multiple virtual machines, IP address changes are not conducive to testing. At first, I wanted to bind an IP address and a MAC address,

In actual O & M, we often use SecuriteCRT to remotely control Linux servers. The following describes how to build a linux development environment using VirtualBox in windows 7 and use SecurityCRT to remotely access the linux server. The procedure is