yum이 안될 때 미러사이트 적용

 vim /etc/yum.repos.d/daumkakao.repo
 yum clean all
 yum repolist

[base]
name=CentOS-$releasever - Base
baseurl=http://ftp.daumkakao.com/centos/6/os/$basearch/
gpgcheck=1
gpgkey=http://ftp.daumkakao.com/centos/RPM-GPG-KEY-CentOS-6
 
[updates]
name=CentOS-$releasever - Updates
baseurl=http://ftp.daumkakao.com/centos/6/updates/$basearch/
gpgcheck=1
gpgkey=http://ftp.daumkakao.com/centos/RPM-GPG-KEY-CentOS-6
 
[extras]
name=CentOS-$releasever - Extras
baseurl=http://ftp.daumkakao.com/centos/6/extras/$basearch/
gpgcheck=1
gpgkey=http://ftp.daumkakao.com/centos/RPM-GPG-KEY-CentOS-6
 
[centosplus]
name=CentOS-$releasever - Plus
baseurl=http://ftp.daumkakao.com/centos/6/centosplus/$basearch/
gpgcheck=1
gpgkey=http://ftp.daumkakao.com/centos/RPM-GPG-KEY-CentOS-6