# 备份
# mv /etc/yum.repos.d/CentOS-Base.repo{,.bak}
# 修改
# vi /etc/yum.repos.d/CentOS-Base.repo
Config代码 
- # CentOS-Base.repo
- #
- # The mirror system uses the connecting IP address of the client and the
- # update status of each mirror to pick mirrors that are updated to and
- # geographically close to the client. You should use this for CentOS updates
- # unless you are manually picking other mirrors.
- #
- # If the mirrorlist= does not work for you, as a fall back you can try the
- # remarked out baseurl= line instead.
- #
- #
- [base]
- name=CentOS-$releasever - Base
- #mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os
- baseurl=http://mirrors.163.com/centos/$releasever/os/$basearch/
- gpgcheck=1
- gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6
- #released updates
- [updates]
- name=CentOS-$releasever - Updates
- #mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=updates
- baseurl=http://mirrors.163.com/centos/$releasever/updates/$basearch/
- gpgcheck=1
- gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6
- #additional packages that may be useful
- [extras]
- name=CentOS-$releasever - Extras
- #mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=extras
- baseurl=http://mirrors.163.com/centos/$releasever/extras/$basearch/
- gpgcheck=1
- gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6
- #additional packages that extend functionality of existing packages
- [centosplus]
- name=CentOS-$releasever - Plus
- #mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=centosplus
- baseurl=http://mirrors.163.com/centos/$releasever/centosplus/$basearch/
- gpgcheck=1
- enabled=0
- gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6
- #contrib - packages by Centos Users
- [contrib]
- name=CentOS-$releasever - Contrib
- #mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=contrib
- baseurl=http://mirrors.163.com/centos/$releasever/contrib/$basearch/
- gpgcheck=1
- enabled=0
- gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6
# CentOS-Base.repo # # The mirror system uses the connecting IP address of the client and the # update status of each mirror to pick mirrors that are updated to and # geographically close to the client. You should use this for CentOS updates # unless you are manually picking other mirrors. # # If the mirrorlist= does not work for you, as a fall back you can try the # remarked out baseurl= line instead. # # [base] name=CentOS-$releasever - Base #mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os baseurl=http://mirrors.163.com/centos/$releasever/os/$basearch/ gpgcheck=1 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6 #released updates [updates] name=CentOS-$releasever - Updates #mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=updates baseurl=http://mirrors.163.com/centos/$releasever/updates/$basearch/ gpgcheck=1 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6 #additional packages that may be useful [extras] name=CentOS-$releasever - Extras #mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=extras baseurl=http://mirrors.163.com/centos/$releasever/extras/$basearch/ gpgcheck=1 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6 #additional packages that extend functionality of existing packages [centosplus] name=CentOS-$releasever - Plus #mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=centosplus baseurl=http://mirrors.163.com/centos/$releasever/centosplus/$basearch/ gpgcheck=1 enabled=0 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6 #contrib - packages by Centos Users [contrib] name=CentOS-$releasever - Contrib #mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=contrib baseurl=http://mirrors.163.com/centos/$releasever/contrib/$basearch/ gpgcheck=1 enabled=0 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6
# yum clean all
# yum makecache #将服务器上的软件包信息缓存到本地,以提高搜索安装软件的速度
# yum install vim* #测试域名是否可用
附：增加RPMforge源
1，download the rpmforge package:
http://packages.sw.be/rpmforge-release/rpmforge-release-0.5.2-2.el6.rf.i686.rpm
2，Install DAG's GPG key
sudo rpm --import http://apt.sw.be/RPM-GPG-KEY.dag.txt
如果上面出现错误，确认下：
sudo rpm -K rpmforge-release-0.5.2-2.el6.rf.*.rpm
3，sudo rpm -i rpmforge-release-0.5.2-2.el6.rf.*.rpm
4，试试看：sudo yum install htop
开始更新系统：
yum update