CentOS下一张网卡绑定多个IP

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CentOS中所有的设备都是文件.网卡也在文件中定义. IP的绑定也只需要更改文件. 网卡相关文件在目录: /etc/sysconfig/network-scripts   查询当前IP信息: ifconfig: eth0      Link encap:Ethernet  HWaddr 00:50:56:AC:6B:0F             inet addr:42.51.135.206  Bcast:42.51.135.255  Mask:255.255.255.0           inet6 addr: fe80::250:56ff:fead:6b0f/64 Scope:Link           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1           RX packets:374772 errors:0 dropped:0 overruns:0 frame:0           TX packets:35165 errors:0 dropped:0 overruns:0 carrier:0           collisions:0 txqueuelen:1000            RX bytes:28759089 (27.4 MiB)  TX bytes:4779278 (4.5 MiB)   在当前目录下有文件: ifcfg-eth0   在目录下新建文件: ifcfg-eth0:1 内容如下: DEVICE=eth0:1 IPADDR=42.51.138.1 NETMASK=255.255.255.0 HWADDR=00:50:56:AC:6B:0F NM_CONTROLLED=yes ONBOOT=yes BOOTPROTO=dhcp TYPE=Ethernet IPV6INIT=no USERCTL=no   ifcfg-eth0:2 DEVICE=eth0:2 IPADDR=42.51.138.2 NETMASK=255.255.255.0 HWADDR=00:50:56:AC:6B:0F NM_CONTROLLED=yes ONBOOT=yes BOOTPROTO=dhcp TYPE=Ethernet IPV6INIT=no USERCTL=no   ifcfg-eth0:3 DEVICE=eth0:3 IPADDR=42.51.138.3 NETMASK=255.255.255.0 HWADDR=00:50:56:AC:6B:0F NM_CONTROLLED=yes ONBOOT=yes BOOTPROTO=dhcp TYPE=Ethernet IPV6INIT=no USERCTL=no   重启网卡: service network restart   这时候再查看IP: eth0      Link encap:Ethernet  HWaddr 00:50:56:AC:6B:0F             inet addr:42.51.135.206  Bcast:42.51.135.255  Mask:255.255.255.0           inet6 addr: fe80::250:56ff:fead:6b0f/64 Scope:Link           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1           RX packets:384344 errors:0 dropped:0 overruns:0 frame:0           TX packets:35241 errors:0 dropped:0 overruns:0 carrier:0           collisions:0 txqueuelen:1000            RX bytes:29462159 (28.0 MiB)  TX bytes:4791402 (4.5 MiB)   eth0:1    Link encap:Ethernet  HWaddr 00:50:56:AC:6B:0F             inet addr:42.51.138.1  Bcast:42.51.138.255  Mask:255.255.255.0           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1   eth0:2    Link encap:Ethernet  HWaddr 00:50:56:AC:6B:0F             inet addr:42.51.138.2  Bcast:42.51.138.255  Mask:255.255.255.0           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1   eth0:3    Link encap:Ethernet  HWaddr 00:50:56:AC:6B:0F             inet addr:42.51.138.3  Bcast:42.51.138.255  Mask:255.255.255.0           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1   测试: 在其它机器上分别 ping 上面几个IP.