本文将详细的为大家具体的介绍关于centos复制克隆改网卡，希望可以帮助到大家，一起来看看吧。

1.备份etc/udev/rules.d/70-persistent-net.rules

[root@SRD999 /]#cd etc/udev/rules.d/

[root@SRD999 rules.d]# ls

60-fprint-autosuspend.rules 70-persistent-net.rules 98-kexec.rules

60-pcmcia.rules 90-alsa.rules 99-fuse.rules

60-raw.rules 90-hal.rules

70-persistent-cd.rules 97-bluetooth-serial.rules

[root@SRD999 rules.d]# cp 70-persistent-net.rules 70-persistent-net.rules.bak

2.修改配置文件

[root@SRD999 rules.d]# vi 70-persistent-net.rules

删掉eth0那行

将eth1改成eth0

修改前

修改后

删掉eth0那行

将eth1改成eth0

修改etc/sysconfig/network-scripts/ifcfg-eth0 将HWADDR改成上面那个信息，就是MAC地址，并配置IP地址等信息

[root@SRD999 /]#vi etc/sysconfig/network-scripts/ifcfg-eth0

更改前

更改后

重启网卡

[root@SRD999 /]#service network restart

Shutting down loopback interface: [ OK ]

Bringing up loopback interface: [ OK ]

Bringing up interface eth0: Active connection state: activated

Active connection path: /org/freedesktop/NetworkManager/ActiveConnection/1

[ OK ]

[root@SRD999 /]#

安装telnet

[root@SRD999 /]#yum -y install telnet*

Loaded plugins: fastestmirror, refresh-packagekit, security

Loading mirror speeds from cached hostfile

* base: mirrors.opencas.cn

* extras: mirrors.zju.edu.cn

* updates: mirrors.zju.edu.cn

Setting up Install Process

Resolving Dependencies

--> Running transaction check

---> Package telnet.x86_64 1:0.17-48.el6 will be installed

---> Package telnet-server.x86_64 1:0.17-48.el6 will be installed

--> Processing Dependency: xinetd for package: 1:telnet-server-0.17-48.el6.x86_64

--> Running transaction check

...............................................................

[root@SRD999 /]#cd etc/xinetd.d

[root@SRD999 xinetd.d]# ls

chargen-dgram daytime-stream echo-dgram tcpmux-server time-stream

chargen-stream discard-dgram echo-stream telnet

daytime-dgram discard-stream rsync time-dgram

[root@SRD999 xinetd.d]#cp telnet telnet.bak 备份

[root@SRD999 xinetd.d]# vi telnet

[root@SRD999 xinetd.d]#

将disable改成no

修改前

修改后

重启服务

[root@SRD999 /]#service xinetd restart

Stopping xinetd: [FAILED]

Starting xinetd: [ OK ]

[root@SRD999 /]# service xinetd restart

Stopping xinetd: [ OK ]

Starting xinetd: [ OK ]

[root@SRD999 /]#

开放防火墙后就可以通过telnet登录系统了