1、查看当前IP地址。
ip address
返回结果：
1: lo: <LOOPBACK,UP,LOWERz_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,MUITICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
link/ether 00:0c:29:5f:5b:fc brd ff:ff:ff:ff:ff:ff
无法查看ip，需要修改配置，启动网卡。
2、修改配置。
vi /etc/sysconfig/network-scripts/ifcfg-ens33
将ONBOOT=no改为ONBOOT=yes：
TYPE=Ethernet
PROXY_METHOD=none
BROUSER_ONLY=no
BOOTPROTO=dhcp
DEFROUTE=yes
IPV4_FAILURE_FATAL=no
IPV6INIT=yes
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_FAILURE_FATAL=no
IPV6_ADDR_GEN_MODE=stable-privacy
NAME=ens33
UUID=a2e4e5fe-442e-4a6a-bba3-3a699db0a5a8
DEVICE=ens33
ONBOOT=yes
3、重启网络服务。
service network restart
4、再次输入ip address就可以看到ip地址了。
1: lo: <LOOPBACK,UP,LOWERz_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,MUITICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
link/ether 00:0c:29:5f:5b:fc brd ff:ff:ff:ff:ff:ff
inet 192.168.153.131/24 brd 192.168.153.255 scope global noprefixroute dynamic ens33
valid_lft 1705sec prefered_lft 1705sec
inet6 fe80::36aa:11e0:d403:b6c7/64 scope link noprefixroute
valid_lft forever prefered_lft forever