由于CentOS6.3官方源已经失效，可以更换为以下源进行替换：[base]
name=CentOS-$releasever - Base
baseurl=http://mirror.nsc.liu.se/centos-store/6.3/os/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os
gpgcheck=
由于CentOS6.10官方源已经失效，可以更换为以下源进行替换：[base]
name=CentOS-$releasever - Base
baseurl=http://vault.centos.org/6.10/os/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os
gpgcheck=1
gpgkey=ht