centos 配置静态ip

1、查看ip地址

[root@localhost network-scripts]# ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: ens33: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether 00:0c:29:45:19:a1 brd ff:ff:ff:ff:ff:ff
    inet 192.168.2.30/24 brd 192.168.2.255 scope global noprefixroute dynamic ens33
       valid_lft 1641sec preferred_lft 1641sec
    inet6 fe80::ccdd:22d6:8c51:11d/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever

2、编辑网卡文件

vi /etc/sysconfig/network-scripts/ifcfg-ens32

.将BOOTPROTO=dhcp改为BOOTPROTO=static；ONBOOT设为ONBOOT=yes

.再添加/更改 IPADDR, NETMASK, GATEWAY, DNS

BOOTPROTO=static
ONBOOT=yes
IPADDR=192.168.1.160
NETMASK=255.255.255.0
GATEWAY=192.168.1.1
DNS=8.8.8.8

3、重启网络

systemctl restart network

4、重新查看ip

[root@localhost network-scripts]# ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: ens33: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether 00:0c:29:45:19:a1 brd ff:ff:ff:ff:ff:ff
    inet 192.168.1.160/24 brd 192.168.2.255 scope global noprefixroute dynamic ens33
       valid_lft 1641sec preferred_lft 1641sec
    inet6 fe80::ccdd:22d6:8c51:11d/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever

5、ping 一下其他的ip或域名

ping www.baidu.com