一般安装好redhat后，不能注册的话，不能使用系统自带的yum源。但是我们可以自己配置yum源来解决这一问题。下面介绍下redhat配置163yum源。
1. 检查是否安装yum包
rpm -qa |grep yum
2. 删除自带的yum包
rpm -qa|grep yum|xargs rpm -e --nodeps
因为一些包之间可能会有依赖关系，所以我们需要加上参数 --nodeps 无视依赖关系。
3. 下载yum包
Yum包下载地址http://mirrors.163.com/centos/
在这个网站里，你可以自己选择需要下载的文件，进入形如5/或者6/的文件下载，其他的无法下载。
wget http://mirrors.163.com/centos/6/os/x86_64/Packages/yum-3.2.29-73.el6.centos.noarch.rpm
wget http://mirrors.163.com/centos/6/os/x86_64/Packages/yum-metadata-parser-1.1.2-16.el6.x86_64.rpm
wget http://mirrors.163.com/centos/6/os/x86_64/Packages/yum-plugin-fastestmirror-1.1.30-37.el6.noarch.rpm
如果wget时候，报http...504等错误，则进入linux,修改etc/hosts文件,添加一行:www.abc.com 192.168.xx.xx
4. 解压yum包
rpm -ivh yum-metadata-parser-1.1.2-16.el6.x86_64.rpm yum-3.2.29-73.el6.centos.noarch.rpm yum-plugin-fastestmirror-1.1.30-37.el6.noarch.rpm --force --nodeps
5. 替换yum源
cd /etc/yum.repos.d/
wget http://mirrors.163.com/.help/CentOS6-Base-163.repo
vi CentOS6-Base-163.repo
注意原来的yum源配置文件是rhel-source.repo。这里把CentOS6-Base-163.repo替换掉rhel-source.repo。
mv rhel-source.repo rhel-source.repo.bak
mv CentOS6-Base-163.repo rhel-source.repo
6. 编辑替换后的rhel-source.repo。
#rhel-source.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-6 - Base - 163.com
baseurl=http://mirrors.163.com/centos/6/os/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=6&arch=$basearch&repo=os
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6
#released updates
[updates]
name=CentOS-6 - Updates - 163.com
baseurl=http://mirrors.163.com/centos/6/updates/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=6&arch=$basearch&repo=updates
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6
#additional packages that may be useful
[extras]
name=CentOS-6 - Extras - 163.com
baseurl=http://mirrors.163.com/centos/6/extras/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=6&arch=$basearch&repo=extras
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6
7. 清理并重建缓存
yum clean all
yum makecache
8. 更新yum
yum update
至此，redhat配置163yum源完成
