centos ping不通www.baidu.com

vim /etc/resolv.conf

 

# No nameservers found; try putting DNS servers into your

# ifcfg files in /etc/sysconfig/network-scripts like so:

#

# DNS1=xxx.xxx.xxx.xxx

# DNS2=xxx.xxx.xxx.xxx

# DOMAIN=lab.foo.com bar.foo.com

nameserver 8.8.8.8

nameserver 8.8.4.4

 

service network restart

刚才添加的DNS没有了

 

解决方案：

运行chattr +i /etc/resolv.conf 

再重启service network restart

可以了。。。。。。。

可以ping www.baidu.com