CentOS上执行wget报错：unable to resolve host address

wget命令报错，无法解析域名"www.keepalived.rog"

[linuxidc@RS1 download]$ wget http://www.keepalived.org/software/keepalived-1.2.12.tar.gz
Resolving www.keepalived.org... failed: Temporary failure in name resolution.
wget: unable to resolve host address `www.keepalived.org'

解决办法：

nano /etc/resolv.conf

nameserver 127.0.0.1

改成OpenDNS的一组解析服务器即可：

nameserver 208.67.222.222

nameserver 208.67.220.220