centos 修改host

1：修改hostname

vi /etc/hostname

修改成你想要的名字即可

2：修改hosts

 [root@ycloud2-test-s3 ~]# vi /etc/hosts
127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6

在後面增加Ip hostname即可

修改後需要重啓網絡設置

1：重啓服務器

2：使用命令重啓網絡設置

[root@v2x-preprod-service-ecs-02 ~]# service network restart

或者命令

[root@v2x-preprod-service-ecs-02 ~]# /etc/init.d/network restart

如果啓動網絡設置出現如下錯誤

Restarting network (via systemctl):  Job for network.service failed because the control 
process exited with error code. See "systemctl status network.service" and "journalctl -xe" for details.
[FAILED]

查看網絡狀態

[root@v2x-preprod-service-ecs-02 network-scripts]# systemctl status network