前言：这是我以RedHat 7.3为例来说明的，有可能系统版本不同，不过我觉得大同小异吧。哈。。。 1.进入目录： [root@Linuxsir root]# cd /etc/sysconfig/network-scripts/ 2：ifcfg-eh0:0中的eh0:0是网卡的代号，当然你也可以用eh0:1之类的，随你喜欢怎么弄，但在eh0:X之前必须有ifcfg，也就是下面这种形式的，我们以eh0:0为例。 [root@Linuxsir root]#cp ifcfg-eth0 ifcfg-eth0:0 3,编辑ifcfg-eth0:0 [root@Linuxsir root]# vi ifcfg-eth0:0 ifcfg-eth0:0里面有这样的内容，你可以这样设置，然后IP可以自己设置了。象我这样设置也一样。 # Please read /usr/share/doc/initscripts-*/sysconfig.txt # for the documentation of these parameters. USERCTL='no' NETMASK='255.255.255.0' -》子掩码 BOOTPROTO='static' -》协议 DEVICE='eth0:0' -》虚拟网卡的代号 IPADDR='192.168.0.9' -》我自己设定的IP TYPE='Ethernet' onBOOT='yes' -》是否开机激活 NETWORK='192.168.0.0' -》网域 BROADCAST='192.168.0.255' -》广播 4.保存退出，然后运行如下的命令，来激活虚拟的网卡。 [root@Linuxsir root]# ifup eh0:0 5.我们来查看我们虚拟的网卡是不是激活了，用ifconfig,也就是下面这样的。 [root@Linuxsir network-scripts]# ifconfig eth0 Link encap:Ethernet HWaddr 00:E0:4C:00:C9:05 inet addr:192.168.0.1 Bcast:192.168.0.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:3 errors:0 dropped:0 overruns:0 frame:0 TX packets:54 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:100 RX bytes:180 (180.0 b) TX bytes:7157 (6.9 Kb) Interrupt:11 Base address:0x2000 eth0:0 Link encap:Ethernet HWaddr 00:E0:4C:00:C9:05 inet addr:192.168.0.9 Bcast:192.168.0.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Interrupt:11 Base address:0x2000 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:12 errors:0 dropped:0 overruns:0 frame:0 TX packets:12 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:846 (846.0 b) TX bytes:846 (846.0 b) 6.ping一下IP,就能知道我们做的是不是成功了。 [root@Linuxsir network-scripts]# ping 192.168.0.9 PING 192.168.0.9 (192.168.0.9) from 192.168.0.9 : 56(84) bytes of data. 64 bytes from 192.168.0.9: icmp_seq=1 ttl=255 time=0.097 ms 64 bytes from 192.168.0.9: icmp_seq=2 ttl=255 time=0.043 ms 64 bytes from 192.168.0.9: icmp_seq=3 ttl=255 time=0.043 ms 64 bytes from 192.168.0.9: icmp_seq=4 ttl=255 time=0.044 ms 64 bytes from 192.168.0.9: icmp_seq=5 ttl=255 time=0.043 ms --- 192.168.0.9 ping statistics --- 14 packets transmitted, 14 received, 0% loss, time 12996ms rtt min/avg/max/mdev = 0.039/0.046/0.097/0.016 ms [root@Linuxsir network-scripts]# ping 192.168.0.1 PING 192.168.0.1 (192.168.0.1) from 192.168.0.1 : 56(84) bytes of data. 64 bytes from 192.168.0.1: icmp_seq=1 ttl=255 time=0.069 ms 64 bytes from 192.168.0.1: icmp_seq=2 ttl=255 time=0.042 ms 64 bytes from 192.168.0.1: icmp_seq=3 ttl=255 time=0.040 ms 64 bytes from 192.168.0.1: icmp_seq=4 ttl=255 time=0.042 ms --- 192.168.0.1 ping statistics --- 7 packets transmitted, 7 received, 0% loss, time 5995ms rtt min/avg/max/mdev = 0.040/0.046/0.069/0.009 ms
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