如何更改Linux網卡名稱

最近更換了公司服務器的一塊網卡。系統是CentOS6.2系統，更換網卡後默認識別，一次點亮。網卡卻是能正常工做了，可原來的代理服務器等不能用了。想一想當年配置那個代理服務器費了好大功夫，仍是更換新網卡的名稱比較省事。

一、停掉要修改的網卡

ifdown eth2

二、cd /etc/udev/rules.d

修改文件：vi 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 0x10ec:0x8168 (r8169)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="18:a9:05:33:61:04", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"

# PCI device 0x10ec:0x8139 (8139too)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:e0:4c:20:07:f0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth1"

文件中很清晰的列出了，你已有的網卡配置。因爲原來的網卡不用了，直接刪掉。把新的網卡名字改爲了"eth1"

三、修改網卡2的網絡配置文件，修改DEVICE爲eth1

cd /etc/sysconfig/network-scripts/ mv ifcfg-Auth_eth2 ifcfg-eth1 vi ifcfg-eth1

DEVICE=eth1
TYPE=Ethernet
BOOTPROTO=none
IPADDR=xxx.xxx.xxx.xxx
PREFIX=29
GATEWAY=xxx.xxx.xxx.xxx
DNS1=xxx.xxx.xxx.xxx
DEFROUTE=yes
IPV4_FAILURE_FATAL=yes
IPV6INIT=no
NAME="System eth1"
UUID=eb46f9f8-ed7f-44ea-845a-8402c3babd72
ONBOOT=yes
HWADDR=00:E0:4C:20:07:F0
LAST_CONNECT=1459820491

四、從新加載網卡

ifup eth1

五、從新啓動網絡

service network restart

若是不行，執行重啓大法。從新加載全部配置。

shutdown -r now