一、查看当前ip地址
[root@localhost ~]# ifconfig
eth2 Link encap:Ethernet HWaddr 00:10:18:AB:08:C4
inet addr:210.32.137.153
Bcast:210.32.137.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1034809 errors:0 dropped:0 overruns:0 frame:0
TX packets:1057 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:75945272 (72.4 MiB) TX bytes:1117565 (1.0 MiB)
Interrupt:177 Memory:9a000000-9a7fffff
eth3 Link encap:Ethernet HWaddr 00:10:18:AB:08:C6
inet addr:10.1.2.11 Bcast:10.1.2.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:697242 errors:0 dropped:0 overruns:0 frame:0
TX packets:28 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:45557850 (43.4 MiB) TX bytes:3457 (3.3 KiB)
Interrupt:178 Memory:9a800000-9affffff
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:15555 errors:0 dropped:0 overruns:0 frame:0
TX packets:15555 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:4651095 (4.4 MiB) TX bytes:4651095 (4.4 MiB)
usb0 Link encap:Ethernet HWaddr 5E:F3:FC:7D:88:8F
inet addr:169.254.95.120 Bcast:169.254.95.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:31769 errors:0 dropped:0 overruns:0 frame:0
TX packets:15930 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:2146178 (2.0 MiB) TX bytes:760683 (742.8 KiB)
二、查看当前ip地址配置文件
[root@localhost ~]# more /etc/sysconfig/network-scripts/ifcfg-eth2
# Broadcom Corporation NetXtreme II BCM57711 10-Gigabit PCIe
DEVICE=eth2
BOOTPROTO=none
HWADDR=00:10:18:AB:08:C4
ONBOOT=yes
HOTPLUG=no
TYPE=Ethernet
NETMASK=255.255.255.0
IPADDR=210.32.137.153
USERCTL=no
IPV6INIT=no
PEERDNS=yes
GATEWAY=210.32.137.1
三、修改ip地址配置文件
[root@localhost ~]# vi /etc/sysconfig/network-scripts/ifcfg-eth2
四、重启系统使其生效
[root@localhost ~]# reboot