CentOS

Get ready for work. See the installation and configuration of the gmond of ganglia under CentOS Ganglia installation package is still used in the previous article mentioned in the ganglia-3.4.0#cd

Do not need any professional software, use CentOS's own commands and services to complete the daily automatic backup.Here's a common backup method: 1. File backup Compress files for backup using the TAR command:#tar-ZCVF backup.tar.gz Dir1Dir1 for

Check to see if the system is 64-bit or 32-bit: The code is as follows Copy Code 1, getconf long_bit or getconf word_bit[Root@localhost ~]# getconf Long_bit64 List all version information, The code

First turn off the httpd service /ETC/INIT.D/HTTPD stop List HTTPD Related packages Rpm-qa|grep httpd The following packages are listedHttpd-2.2.3-63.el5.centos.1Httpd-manual-2.2.3-63.el5.centos.1 Uninstall Package Rpm-e

Dstat If the system does not have some tools yum-y install Dstat installation, the software is small, the package size is only 144k, installation size 660k. This tool will dynamically display the Cpu,disk,net,page,system load situation by default,

Talking about RPM to many compiled and installed friends, RPM installation is a fool to install. Oh, in fact, RPM is a very effective centralized deployment of the solution. YUM+RPM is a very fast and convenient large-scale deployment scenario.

Solution:In CentOS 7, modify MySQL database character encoding to UTF-8, which contains all the characters needed by all countries in the world, is an international code.Specific operations:1. Log on to the MySQL console.Mysql-u root-pEnter

ReasonWhen I use vagrant for the development environment, the svn version on windows is 1.8.x, and the svn version in the centos7 Virtual Machine managed by vagrant is 1.7.x.In this case, the svn version earlier cannot manage the repository managed

In the past, the centos7 virtual machine was installed. In order to play with Docker, I forgot the password I set. I reset the password in a circle on the Internet and recorded it.Only know that you can enter the single user mode by pressing e, but

Background:Compared with VPN, it is much easier to build a Shadowsocks service and use it through browser proxy.Similar to SSH Tunnel, the Shadowsocks server establishes an encrypted Tunnel with its dedicated Shadowsocks client. Then, the

  The code is as follows:Copy code [Root @ chenyi unix-python] # tar jxf Python-2.7.2.tar.bz2[Root @ chenyi unix-python] # cd Python-2.7.2[Root @ chenyi Python-2.7.2] #./configure -- prefix =/software/python[Root @ chenyi Python-2.7.2] # make &

Startup and login security1. BIOS securitySet the BIOS password and modify the boot sequence to disable system startup from a floppy disk.2. User passwordThe user password is a basic starting point for linux security. The user password used by many

Because you often need to back up website data, you have learned how to send emails through shell in linux. Here we use CentOSFor example, use the mail command to send external emails. The syntax of the mail command is as follows: The code is as

Iptables is one of the commonly used firewall software in Linux. After LNMP is installed. After you restart the machine, you will find that the Web site cannot be opened, which is largely caused by iptable. Below are some common settings for

Step 1: Download and install MariaDBThe installation slave database MariaDB is run as a CentOS 7 repo in CentOS. Any lower requirements require you to add additional repository servers. Run the following command on your server:Yum update-yYum

In this experiment, we used three virtual servers (centos5.5) under Vmware, one as the load scheduler (Lvs-server) and two real web servers (web1 and web2 ).I. Lvs-nat experiment:Configure the IP address:1. Configure the Nic connected to the virtual

Installation Requirements# Yum install curl-devel expat-devel gettext-devel openssl-devel zlib-devel# Yum install gcc perl-ExtUtils-MakeMakerUninstall git1.7.1 from CentosUse git-version to view the version of the system. Cento6.5 should contain the

The OpenSSL Heart Bleed vulnerability has been confusing for the past two days. Please read this article to analyze and diagnose the OpenSSL Heartbleed Bug. Currently, we can see that the versions that can exploit this vulnerability are:OpenSSL 1.0.1

As one of the best Bug management systems, Bugzilla is an open-source software mainly written in Perl. It is used by many companies or organizations, such as RedHat and Linux kernel.I am also using Bugzilla in my company to manage bugs. Recently I