Linux一个主机配多个IP
首先我们在linux下查看该主机的IP地址:
#ifconfig
eth0 Link encap:Ethernet HWaddr 00:16:8d:B7:6A:E0
inet addr:192.168.1.111 Bcast:192.168.1.255 Mask:255.255.252.0
inet6 addr: fd80::213:8eff:feb7:2ae0/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:7077 errors:0 dropped:0 overruns:0 frame:0
TX packets:54 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:654811 (639.4 KiB) TX bytes:6229 (6.0 KiB)
Interrupt:10 Base address:0xb800
这里我们只看到该主机只有一个IP地址,我们要在网卡eth0上再绑定另外一个IP,因为一般的机器它只有一张网卡,所以我们就在同一张网卡上进行多个IP的绑定。好了,我们开始做吧。
1.首先进入网卡的配置文件
#cd /etc/sysconfig/network-scripts
2.复制网卡eth0的配置文件
#cp ifcfg-eth0 ifcfg-eth0:0
3.修改ifcfg-eht0:0文件
#vi ifcfg-eth0:0
将其中的IP地址改为你的另外一个IP地址,比如我的修改如下:
DEVICE=eth0:0 #网卡的设置名称,要跟文件名一致
BOOTPROTO=static
HWADDR=00:16:8d:B7:6A:E0
IPADDR=192.168.1.112
NETMASK=255.255.252.0
GATEWAY=192.168.0.0
ONBOOT=yes
TYPE=Ethernet
注意的是,eth0:0的物理网卡地址必须要和eth0d物理网卡地址,即HWaddr要一致,因为是在同一网卡上绑定的多个IP。保存好后,我们就可以 重启网卡了.
4.重新启动网卡
/etc/init.d/network restart
5.启动后,再查看IP地址
#ifconfig
eth0 Link encap:Ethernet HWaddr 00:16:8d:B7:6A:E0
inet addr:192.168.1.111 Bcast:192.168.1.255 Mask:255.255.252.0
inet6 addr: fd80::213:8eff:feb7:2ae0/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:7077 errors:0 dropped:0 overruns:0 frame:0
TX packets:54 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:654811 (639.4 KiB) TX bytes:6229 (6.0 KiB)
Interrupt:10 Base address:0xb800
eth0:0 Link encap:Ethernet HWaddr 00:16:8d:B7:6A:E0
inet addr:192.168.1.112 Bcast:192.168.1.255 Mask:255.255.252.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
Interrupt:10 Base address:0xb800
看看,机器是不是有两个IP地址了啊,呵呵,可以试着用另外一台机器ping下~~~
#ping 192.168.1.111
PING 192.168.1.111 (192.168.1.111) 56(84) bytes of data.
64 bytes from 192.168.1.111: icmp_seq=0 ttl=64 time=0.061 ms
64 bytes from 192.168.1.111: icmp_seq=1 ttl=64 time=0.048 ms
64 bytes from 192.168.1.111: icmp_seq=2 ttl=64 time=0.052 ms
#ping 192.168.1.112
PING 192.168.1.112 (192.168.1.112) 56(84) bytes of data.
64 bytes from 192.168.1.112: icmp_seq=0 ttl=64 time=0.063 ms
64 bytes from 192.168.1.112: icmp_seq=1 ttl=64 time=0.055 ms
64 bytes from 192.168.1.112: icmp_seq=2 ttl=64 time=0.055 ms