CentOS 7 Settings DNS method differs from previous version

In CentOS 7, manually set the DNS in the/etc/resolv.conf, after a while, found to be re-overwritten or removed by the system. Unlike the setup DNS method under CentOS 6, there are several ways:

1, use the new command line tool NMCLI to set

#显示当前网络连接 #nmcli Connection showname UUID                                 TYPE           DEVICEeno1 5fb06bd0-0bb0-7ffb-45f1-d6edd65f3e03 802-3- Ethernet eno1# Modify the DNS server for the current network connection, where the network connection can be identified by name or UUID #nmcli con mod eno1 ipv4.dns "114.114.114.114 8.8.8.8" #将dns配置生效 # Nmcli con up Eno1

2, the use of traditional methods, manual modification/etc/resolv.conf

• Modify the/etc/networkmanager/networkmanager.conf file and add the "dns=none" option in the main section:

[Main]plugins=ifcfg-rhdns=none

• NetworkManager re-loading the configuration modified above

# systemctl Restart Networkmanager.service

• Manual modification/etc/resolv.conf

NameServer 114.114.114.114nameserver 8.8.8.8

See MORE:

# man NetworkManager.conf# man nmcli

CentOS 7 Settings DNS method differs from previous version