ifconfig发现网卡名字(eth1、eth2)与配置文件中名字(eth0、eth1)不符，修改如下

一、查看网卡名字对应的HWADDR

[root@linnux ~]# ifconfig -a

eth1      Link encap:Ethernet  HWaddr 08:00:27:14:87:06

inet addr:192.168.1.2  Bcast:192.168.1.255  Mask:255.255.255.0

inet6 addr: fe80::a00:27ff:fe14:8706/64 Scope:Link

UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

RX packets:658 errors:0 dropped:0 overruns:0 frame:0

TX packets:527 errors:0 dropped:0 overruns:0 carrier:0

collisions:0 txqueuelen:1000

RX bytes:65027 (63.5 KiB)  TX bytes:78666 (76.8 KiB)

eth2      Link encap:Ethernet  HWaddr 08:00:27:3E:94:DC

inet addr:172.168.1.2  Bcast:172.168.1.255  Mask:255.255.255.0

inet6 addr: fe80::a00:27ff:fe3e:94dc/64 Scope:Link

UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

RX packets:35 errors:0 dropped:0 overruns:0 frame:0

TX packets:37 errors:0 dropped:0 overruns:0 carrier:0

collisions:0 txqueuelen:1000

RX bytes:5599 (5.4 KiB)  TX bytes:7155 (6.9 KiB)

二、编辑ifcfg-eth0文件和ifcfg-eth1文件，把MAC改为正确的，把UUID删掉

[root@node1 ~]# cat /etc/sysconfig/network-scripts/ifcfg-eth0

TYPE=Ethernet

BOOTPROTO=none

IPADDR=192.168.1.2

PREFIX=24

GATEWAY=192.168.1.1

DEFROUTE=yes

IPV4_FAILURE_FATAL=yes

IPV6INIT=no

NAME="eth0"

#UUID=1976d3c7-b6fa-4002-8738-f370de6eddd6

ONBOOT=yes

HWADDR=08:00:27:14:87:06

LAST_CONNECT=1498051708

三、查看文件70-persistent-net.rules进行修改，网卡名字要和MAC地址对应

[root@node1 ~]# cat /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}=="08:00:27:41:05:c4", ATTR{type}=="1"                                   , KERNEL=="eth*", NAME="eth0"

# PCI device 0x8086:0x100e (e1000)

SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="08:00:27:14:87:06", ATTR{type}=="1",                                    KERNEL=="eth*", NAME="eth0"

# PCI device 0x8086:0x100e (e1000)

SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="08:00:27:3e:94:dc", ATTR{type}=="1",                                    KERNEL=="eth*", NAME="eth1"

四、查看hostname是否正确

[root@node1 ~]# cat /etc/sysconfig/network

NETWORKING=yes

HOSTNAME=node1