关闭虚拟机或者物理机,添加网卡。然后开机,查看网卡是否发现
root@radius ~]# more /etc/udev/rules.d/70-persistent-net.rules
# This file was automatically generated by the /lib/udev/write_net_rules
# program, run by the persistent-net-generator.rules rules file.
#
# You can modify it, as long as you keep each rule on a single
# line, and change only the value of the NAME= key.
# PCI device 0x8086:0x100e (e1000)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="d2:31:1f:6d:30:bc", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"
# PCI device 0x10ec:0x8139 (8139cp)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="de:a0:69:bf:67:81", ATTR{type}=="1", KERNEL=="eth*", NAME="eth1"
看到新添加的两块网卡分别是:eth1 和 eth2,并记录网卡的MAC地址复制eth0的配置文件配置新增加的网卡信息
[root@radius network-scripts]# cd /etc/sysconfig/network-scripts/
[root@radius network-scripts]# ls -l
total 204
-rw-r--r-- 1 root root 179 Mar 5 15:11 ifcfg-eth0
-rw-r--r--. 1 root root 254 Oct 7 2011 ifcfg-lo
lrwxrwxrwx. 1 root root 20 Feb 26 06:22 ifdown -> ../../../sbin/ifdown
-rwxr-xr-x. 1 root root 627 Oct 7 2011 ifdown-bnep
-rwxr-xr-x. 1 root root 5569 Oct 7 2011 ifdown-eth
-rwxr-xr-x. 1 root root 781 Oct 7 2011 ifdown-ippp
-rwxr-xr-x. 1 root root 4168 Oct 7 2011 ifdown-ipv6
lrwxrwxrwx. 1 root root 11 Feb 26 06:22 ifdown-isdn -> ifdown-ippp
-rwxr-xr-x. 1 root root 1481 Oct 7 2011 ifdown-post
-rwxr-xr-x. 1 root root 1064 Oct 7 2011 ifdown-ppp
-rwxr-xr-x. 1 root root 651 Oct 7 2011 ifdown-routes
-rwxr-xr-x. 1 root root 1370 Oct 7 2011 ifdown-sit
-rwxr-xr-x. 1 root root 1434 Oct 7 2011 ifdown-tunnel
lrwxrwxrwx. 1 root root 18 Feb 26 06:22 ifup -> ../../../sbin/ifup
-rwxr-xr-x. 1 root root 13445 Oct 7 2011 ifup-aliases
-rwxr-xr-x. 1 root root 859 Oct 7 2011 ifup-bnep
-rwxr-xr-x. 1 root root 10456 Oct 7 2011 ifup-eth
-rwxr-xr-x. 1 root root 11971 Oct 7 2011 ifup-ippp
-rwxr-xr-x. 1 root root 10683 Oct 7 2011 ifup-ipv6
lrwxrwxrwx. 1 root root 9 Feb 26 06:22 ifup-isdn -> ifup-ippp
-rwxr-xr-x. 1 root root 727 Oct 7 2011 ifup-plip
-rwxr-xr-x. 1 root root 954 Oct 7 2011 ifup-plusb
-rwxr-xr-x. 1 root root 2364 Oct 7 2011 ifup-post
-rwxr-xr-x. 1 root root 4154 Oct 7 2011 ifup-ppp
-rwxr-xr-x. 1 root root 1712 Oct 7 2011 ifup-routes
-rwxr-xr-x. 1 root root 3499 Oct 7 2011 ifup-sit
-rwxr-xr-x. 1 root root 2488 Oct 7 2011 ifup-tunnel
-rwxr-xr-x. 1 root root 3770 Oct 7 2011 ifup-wireless
-rwxr-xr-x. 1 root root 4623 Oct 7 2011 init.ipv6-global
-rwxr-xr-x. 1 root root 1125 Oct 7 2011 net.hotplug
-rw-r--r--. 1 root root 11736 Oct 7 2011 network-functions
-rw-r--r--. 1 root root 29853 Oct 7 2011 network-functions-ipv6
拷贝ifcfg-eth0为ifcfg-eth1并编辑
[root@radius network-scripts]# cp ifcfg-eth0 ifcfg-eth1
[root@radius network-scripts]# vi ifcfg-eth1
DEVICE="eth1"
BOOTPROTO="static"
IPADDR="192.168.1.31"
HWADDR="de:a0:69:bf:67:81"
IPV6INIT="no"
NETMASK="255.255.255.0"
NM_CONTROLLED="yes"
ONBOOT="yes"
保存,重启网卡即可
root@radius ~]# service network restart
Shutting down interface eth0: [ OK ]
Shutting down interface eth1: [ OK ]
Shutting down loopback interface: [ OK ]
Bringing up loopback interface: [ OK ]
Bringing up interface eth0: [ OK ]
Bringing up interface eth1: [ OK ]