Centos 7 system Optimization < A;.

CENTOS7 Minimal installation Some components need to be installed on their own, such as Iptables,wget,vim

[Email protected] yum.repos.d]# cat/etc/redhat-releasecentos Linux release 7.2.1511 (Core) [[email protected] Yum.repos . d]# Uname-r 3.10.0-229.el7.x86_64

1. Install CENTOS7 Select a basic installation and first turn off firewall when you are finished configuring the network:

Stop firewall

Systemctl Stop Firewalld.service

Disable firewall boot

Systemctl Disable Firewalld.service

2. Install iptables Firewall

Yum Mode installation Iptables

Yum Install Iptables-services

Edit the firewall configuration file

Vi/etc/sysconfig/iptables #添加下面三句话到默认的22端口这条规则的下面-A input-m State--state new-m tcp-p TCP--dport 80-j accept-a INPUT -M state--state new-m tcp-p TCP--dport 3306-j accept-a input-m State--state new-m udp-p UDP--dport 161-j accep T

Finally reboot the firewall to make the configuration effective

Systemctl Restart Iptables.service

Setting up a firewall boot

Systemctl Enable Iptables.service

3, turn off SELinux

Editing the SELinux configuration file

vi/etc/selinux/config# comment out the following two lines #selinux=enforcing #SELINUXTYPE =targeted #增加一行SELINUX =disabled

Save, close

Esc

: Wq

Rebooting the system

Shutdown-r now

4,centos7 minimized installation without WGet tool, this we will use the source code behind, so first install this

Yum install-y wget

5, Add a third-party yum Source

Some bad environment need software, CentOS comes with the source, we add two sources, convenient after the Yum install bad environment required components, or one to go under the source code compilation too much trouble, I only added Epel and rpmforge two source

The first step, if the source file conflict, need to have a priority, so first install yum-priorities

Yum Install Yum-priorities

The second step is to set the CentOS default Yum source to the highest priority

cd/etc/yum.repos.d/#进入yum源目录vi Centos-base.repo

Add Priority=1 below #在 [base], [updates], [extras] group, add priority=2 under [Centosplus], [contrib] group

Step three, install Epel

RPM-IVH http://dl.fedoraproject.org/pub/epel/6/i386/epel-release-6-8.noarch.rpm--replacefilesrpm--import/etc/ Pki/rpm-gpg/rpm-gpg-key-epel-6vi/etc/yum.repos.d/epel.repo

Modify Epel Yum source priority, priority=11

Step four, install the Rpmforge yum source

wget Http://apt.sw.be/redhat/el7/en/x86_64/rpmforge/RPMS/rpmforge-release-0.5.3-1.el7.rf.x86_64.rpmwget/HTTP dag.wieers.com/rpm/packages/rpm-gpg-key.dag.txtrpm--import RPM-GPG-KEY.DAG.TXTRPM-IVH Rpmforge-release-0.5.3-1.el7.rf.x86_64.rpmvi/etc/yum.repos.d/rpmforge.repo

Modify Rpmforge Yum source priority, priority=12

Yum Update

6.Centos default comes with VI, function without vim rich, install vim

Yum Install Vim-enhanced-y

Http://www.cnblogs.com/phpinfo/p/3923461.html

CENTOS7 installation under minimal installation, compile lamp environment

This article is from the "Lanzhi" blog, make sure to keep this source http://7826443.blog.51cto.com/7816443/1728555

Centos 7 system Optimization < A;.