修改centos的yum为163的源

收藏下centos的yum源，163提供的，速度也不错，备用。
[root@localhost yum.repos.d]# cp CentOS-Base.repo CentOS-Base.repo.bak
[root@localhost yum.repos.d]# :>CentOS-Base.repo
[root@localhost yum.repos.d]# vi CentOS-Base.repo

[base]
name=CentOS-$releasever - Base
#mirrorlist=http://mirrors.163.com/?release=$releasever&arch=$basearch&repo=os
baseurl=http://mirrors.163.com/centos/$releasever/os/$basearch/
gpgcheck=1
gpgkey=http://mirrors.163.com/centos/devel/RPM-GPG-KEY-CentOS-5

#released updates
[update]
name=CentOS-$releasever - Updates
#mirrorlist=http://mirrors.163.com/?release=$releasever&arch=$basearch&repo=updates
baseurl=http://mirrors.163.com/centos/$releasever/updates/$basearch/
gpgcheck=1
gpgkey=http://mirrors.163.com/centos/devel/RPM-GPG-KEY-CentOS-5

#packages used/produced in the build but not released
[addons]
name=CentOS-$releasever - Addons
#mirrorlist=http://mirrors.163.com/?release=$releasever&arch=$basearch&repo=addons
baseurl=http://mirrors.163.com/centos/$releasever/addons/$basearch/
gpgcheck=1
gpgkey=http://mirrors.163.com/centos/devel/RPM-GPG-KEY-CentOS-5

#additional packages that may be useful
[extras]
name=CentOS-$releasever - Extras
#mirrorlist=http://mirrors.163.com/?release=$releasever&arch=$basearch&repo=extras
baseurl=http://mirrors.163.com/centos/$releasever/extras/$basearch/
gpgcheck=1
gpgkey=http://mirrors.163.com/centos/devel/RPM-GPG-KEY-CentOS-5

#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-$releasever - Plus
#mirrorlist=http://mirrors.163.com/?release=$releasever&arch=$basearch&repo=centosplus
baseurl=http://mirrors.163.com/centos/$releasever/centosplus/$basearch/
gpgcheck=1
enabled=1
gpgkey=http://mirrors.163.com/centos/devel/RPM-GPG-KEY-CentOS-5

#contrib - packages by Centos Users
[contrib]
name=CentOS-$releasever - Contrib
#mirrorlist=http://mirrors.163.com/?release=$releasever&arch=$basearch&repo=contrib
baseurl=http://mirrors.163.com/centos/$releasever/contrib/$basearch/
gpgcheck=1
enabled=0
gpgkey=http://mirrors.163.com/centos/devel/RPM-GPG-KEY-CentOS-5