Common Solution for CentOS yum errors

Common Solution for CentOS yum errors
Centos-yum update problem-103

When installing software on centOs. Error message:


Cocould not retrieve into listhttp: // your list.centos.org /? Release = 6 & arch = x86_64 & repo = OS error was

14: pycurl error 6-"Couldn't resolvehost 'using list .centos.org '"

Cocould not retrieve into listhttp: // your list.centos.org /? Release = 6 & arch = x86_64 & repo = extras errorwas

14: pycurl error 6-"Couldn't resolvehost 'using list .centos.org '"

Cocould not retrieve into listhttp: // your list.centos.org /? Release = 6 & arch = x86_64 & repo = updates errorwas

14: pycurl error 6-"Couldn't resolvehost 'using list .centos.org '"

Listen 14] 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 list.centos.org

; Connection timed out; no servers couldbe reached

I found the problem here. My domain name cannot be resolved, and the domain name pointed to in the yum configuration file cannot be identified. Reset dns pointing.

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

# Generated by NetworkManager



Nameserver 8.8.8.8

[Root @ hbase01-222 ~] # Yum install gcc-c ++