Centos7修改ip地址

查看ip地址

ifconfig # 方式1

## 这个名字的文件是我们需要修改的
ens32: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.100.172  netmask 255.255.255.0  broadcast 192.168.100.255
        inet6 fe80::4b9b:8d53:fba3:3964  prefixlen 64  scopeid 0x20<link>
        ether 00:50:56:86:41:b4  txqueuelen 1000  (Ethernet)
        RX packets 5829  bytes 752184 (734.5 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 434  bytes 59083 (57.6 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 72458  bytes 23024000 (21.9 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 72458  bytes 23024000 (21.9 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

virbr0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        inet 192.168.122.1  netmask 255.255.255.0  broadcast 192.168.122.255
        ether 52:54:00:11:12:2b  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0


ip addr # 方式2
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: ens32: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether 00:50:56:86:41:b4 brd ff:ff:ff:ff:ff:ff
    inet 192.168.100.42/24 brd 192.168.100.255 scope global noprefixroute ens32
       valid_lft forever preferred_lft forever
    inet6 fe80::4b9b:8d53:fba3:3964/64 scope link noprefixroute
       valid_lft forever preferred_lft forever
3: virbr0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default qlen 1000
    link/ether 52:54:00:11:12:2b brd ff:ff:ff:ff:ff:ff
    inet 192.168.122.1/24 brd 192.168.122.255 scope global virbr0
       valid_lft forever preferred_lft forever
4: virbr0-nic: <BROADCAST,MULTICAST> mtu 1500 qdisc pfifo_fast master virbr0 state DOWN group default qlen 1000
    link/ether 52:54:00:11:12:2b brd ff:ff:ff:ff:ff:ff

修改配置文件：

vim /etc/sysconfig/network-scripts/ifcfg-ens32 # 文件名来源于上面

## 文件中修改或者添加以下内容
BOOTPROTO="static" #dhcp改为static 
ONBOOT="yes" #开机启用本配置
IPADDR=192.168.7.106 #静态IP
GATEWAY=192.168.7.1 #默认网关
NETMASK=255.255.255.0 #子网掩码
DNS1=192.168.7.1 #DNS 配置 

重启网络服务：

service network restart

看看能不能上网：

ping baidu.com # 如果成功则ok了。不成功就得检查一下配置