RHEL6.4下用udev做网卡名称绑定
无论你是系统工程师，还是运维工程师，亦或是数据库工程师等等，均有可能会遇到需要网卡特殊命名的时候，本文基于RHEL6.4系统为例介绍如何做网卡名称绑定，仅供参考！
环境：rhel6.4操作系统
要求：将网卡eth0 改名为 public0
步骤介绍：
1. 查看当前eth0网卡的信息
2. 写Udev规则指定网卡名称
3. 网卡文件修改以及网卡信息查看
4. 重启验证
5. 网卡跳号解决方案
查看当前eth0网卡的信息
# udevadm info --query=path --path=/sys/class/net/eth0 --attribute
.......................
looking at device '/devices/pci0000:00/0000:00:11.0/0000:02:02.0/net/eth0':
KERNEL=="eth0"
SUBSYSTEM=="net"
DRIVER==""
ATTR{addr_assign_type}=="0"
ATTR{addr_len}=="6"
ATTR{dev_id}=="0x0"
ATTR{ifalias}==""
ATTR{iflink}=="3"
ATTR{ifindex}=="3"
ATTR{features}=="0x10b89"
ATTR{type}=="1"
ATTR{link_mode}=="0"
ATTR{address}=="00:0c:29:20:34:b9"
ATTR{broadcast}=="ff:ff:ff:ff:ff:ff"
ATTR{carrier}=="1"
ATTR{speed}=="1000"
ATTR{duplex}=="full"
ATTR{dormant}=="0"
ATTR{operstate}=="up"
ATTR{mtu}=="1500"
ATTR{flags}=="0x1003"
ATTR{tx_queue_len}=="1000"
..............................
参考上面的输出，截取能够唯一标识eth0网卡的信息，开始写udev规则
# vim /etc/udev/rules.d/99-nic.rules
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:0c:29:20:34:b9", ATTR{type}=="1", KERNEL=="eth*", NAME="public"
查看现在网卡的名称
# ifconfig
eth0 Link encap:Ethernet HWaddr 00:0C:29:20:34:B9
inet addr:192.168.1.121 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::20c:29ff:fe20:34b9/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:361 errors:0 dropped:0 overruns:0 frame:0
TX packets:14 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:45981 (44.9 KiB) TX bytes:1622 (1.5 KiB)
eth1 Link encap:Ethernet HWaddr 00:0C:29:20:34:AF
inet addr:192.168.1.120 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::20c:29ff:fe20:34af/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1364 errors:0 dropped:0 overruns:0 frame:0
TX packets:840 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:137901 (134.6 KiB) TX bytes:112227 (109.5 KiB)
.......................
修改网卡的配置文件
# cd /etc/sysconfig/network-scripts/
# mv ifcfg-eth0 ifcfg-public0
# vim ifcfg-public0
DEVICE="eth0" ---> DEVICE="public0"
重启机器看是否生效
# reboot
# ifconfig
eth0 Link encap:Ethernet HWaddr 00:0C:29:20:34:AF
inet addr:192.168.1.120 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::20c:29ff:fe20:34af/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:140 errors:0 dropped:0 overruns:0 frame:0
TX packets:108 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:16902 (16.5 KiB) TX bytes:14153 (13.8 KiB)
public0 Link encap:Ethernet HWaddr 00:0C:29:20:34:B9
inet addr:192.168.1.121 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::20c:29ff:fe20:34b9/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:30 errors:0 dropped:0 overruns:0 frame:0
TX packets:11 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:5875 (5.7 KiB) TX bytes:1365 (1.3 KiB)
...........................................
如果出现网卡跳号的情况，解决方法如下：
删除默认网卡命名的文件，并重启即可
# rm -rf /etc/udev/rules.d/70-persistent-net.rules
# reboot