centos7设置DNS

1.修改 /etc/NetworkManager/NetworkManager.conf 文件

vim /etc/NetworkManager/NetworkManager.conf

在main部分添加 “dns=none” 选项。

[main]

plugins=ifcfg-rh

dns=none

2.重新装载NetworkManager配置

systemctl restart NetworkManager.service

3.手工修改 /etc/resolv.conf

vim /etc/resolv.conf

根据需要添加以下内容

nameserver 114.114.114.114
nameserver 8.8.8.8