General solution for CentOS Yum error

Centos-yum Update Problem-103

When you install the software on the CentOS. Prompt for error information:


Could not retrieve Mirrorlisthttp://mirrorlist.centos.org/?release=6&arch=x86_64&repo=os error is

14:pycurl ERROR 6-"couldn ' t resolvehost ' mirrorlist.centos.org '"

Could not retrieve Mirrorlisthttp://mirrorlist.centos.org/?release=6&arch=x86_64&repo=extras Errorwas

14:pycurl ERROR 6-"couldn ' t resolvehost ' mirrorlist.centos.org '"

Could not retrieve Mirrorlisthttp://mirrorlist.centos.org/?release=6&arch=x86_64&repo=updates Errorwas

14:pycurl ERROR 6-"couldn ' t resolvehost ' mirrorlist.centos.org '"

Http://mirrors.163.com/centos/6.2/os/x86_64/repodata/repomd.xml:[errno] Pycurl ERROR 6-"COULDN ' t resolve host ' Mirrors.163.com ' "

Trying other mirror.

Error:cannot Retrieve repository metadata (Repomd.xml) for repository:base. Please verify its path and try again

[root@hbase01-222 ~]# service iptables stop

[root@hbase01-222 ~]# nslookup mirrorlist.centos.org

;; Connection timed out; No servers couldbe reached

To find the problem here, my domain name can not resolve, Yum's configuration file point to the domain name can not be identified. Reset the next DNS point.

[Root@hbase01-222 ~]# vim/etc/resolv.conf

# Generated by NetworkManager



NameServer 8.8.8.8

[root@hbase01-222 ~]# Yum Install gcc-c++