CentOS7.4 系統(tǒng)安裝好后，默認(rèn)網(wǎng)卡名稱為為ensXX，如ens33，如果要修改為eth0開頭，需要進(jìn)行如下配置
1.查看原網(wǎng)卡名稱：
[root@centos7 network-scripts]# ifconfig
ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>? mtu 1500
? ? ? ? inet 192.168.155.104? netmask 255.255.255.0? broadcast 192.168.155.255
? ? ? ? inet6 fe80::212a:c0fb:e179:7f1c? prefixlen 64? scopeid 0x20<link>
? ? ? ? ether 00:0c:29:c4:34:bd? txqueuelen 1000? (Ethernet)
? ? ? ? RX packets 1465? bytes 129004 (125.9 KiB)
? ? ? ? RX errors 0? dropped 0? overruns 0? frame 0
? ? ? ? TX packets 802? bytes 104240 (101.7 KiB)
? ? ? ? TX errors 0? dropped 0 overruns 0? carrier 0? collisions 0
lo: flags=73<UP,LOOPBACK,RUNNING>? mtu 65536
? ? ? ? inet 127.0.0.1? netmask 255.0.0.0
? ? ? ? inet6 ::1? prefixlen 128? scopeid 0x10<host>
? ? ? ? loop? txqueuelen 1? (Local Loopback)
? ? ? ? RX packets 72? bytes 5720 (5.5 KiB)
? ? ? ? RX errors 0? dropped 0? overruns 0? frame 0
? ? ? ? TX packets 72? bytes 5720 (5.5 KiB)
? ? ? ? TX errors 0? dropped 0 overruns 0? carrier 0? collisions 0
virbr0: flags=4099<UP,BROADCAST,MULTICAST>? mtu 1500
? ? ? ? inet 192.168.122.1? netmask 255.255.255.0? broadcast 192.168.122.255
? ? ? ? ether 52:54:00:1a:02:e7? txqueuelen 1000? (Ethernet)
? ? ? ? RX packets 0? bytes 0 (0.0 B)
? ? ? ? RX errors 0? dropped 0? overruns 0? frame 0
? ? ? ? TX packets 0? bytes 0 (0.0 B)
? ? ? ? TX errors 0? dropped 0 overruns 0? carrier 0? collisions 0
[root@centos7 network-scripts]#
2.修改網(wǎng)卡信息
[root@centos7 ~]# cd /etc/sysconfig/network-scripts/
[root@centos7 network-scripts]# vi ifcfg-ens33
TYPE=Ethernet
PROXY_METHOD=none
BROWSER_ONLY=no
BOOTPROTO=dhcp
DEFROUTE=yes
IPV4_FAILURE_FATAL=no
IPV6INIT=yes
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_FAILURE_FATAL=no
IPV6_ADDR_GEN_MODE=stable-privacy
NAME=eth0?????????????????? #name修改為eth0
UUID=048802a8-f20c-4c19-902a-e326b3a69686
#DEVICE=ens33
ONBOOT=yes
網(wǎng)卡配置文件名稱改為 ifcfg-eth0?
[root@centos7 network-scripts]# mv ifcfg-ens33 ifcfg-eth0
3.修改grub配置
因 CentOS7 采用 grub2 引導(dǎo)，還需要對(duì) grub2 進(jìn)行修改，編輯 /etc/default/grub 配置文件，在 GRUB_CMDLINE_LINUX 這個(gè)參數(shù)后面加入 "net.ifnames=0?biosdevname=0"
[root@centos7 network-scripts]# vi /etc/default/grub
GRUB_TIMEOUT=5
GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)"
GRUB_DEFAULT=saved
GRUB_DISABLE_SUBMENU=true
GRUB_TERMINAL_OUTPUT="console"
GRUB_CMDLINE_LINUX="crashkernel=auto rd.lvm.lv=centos/root rd.lvm.lv
=centos/swap rhgb quiet net.ifnames=0 biosdevname=0"
GRUB_DISABLE_RECOVERY="true"
用 grub2-mkconfig 命令重新生成GRUB配置并更新內(nèi)核
[root@centos7 network-scripts]# grub2-mkconfig -o /boot/grub2/grub.cfg
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-3.10.0-693.el7.x86_64
Found initrd image: /boot/initramfs-3.10.0-693.el7.x86_64.img
Found linux image: /boot/vmlinuz-0-rescue-c15c0efab776454daa1c4da36ec768f6
Found initrd image: /boot/initramfs-0-rescue-c15c0efab776454daa1c4da36ec768f6.img
done
[root@centos7 network-scripts]#
重啟系統(tǒng)
[root@centos7 network-scripts]# reboot
4.驗(yàn)證網(wǎng)卡名
重啟之后驗(yàn)證網(wǎng)卡名稱:
[root@centos7 ~]# ifconfig
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>? mtu 1500
? ? ? ? inet 192.168.155.104? netmask 255.255.255.0? broadcast 192.168.155.255
? ? ? ? inet6 fe80::8453:5a1:debb:b9d5? prefixlen 64? scopeid 0x20<link>
? ? ? ? ether 00:0c:29:c4:34:bd? txqueuelen 1000? (Ethernet)
? ? ? ? RX packets 119? bytes 12471 (12.1 KiB)
? ? ? ? RX errors 0? dropped 0? overruns 0? frame 0
? ? ? ? TX packets 142? bytes 18721 (18.2 KiB)
? ? ? ? TX errors 0? dropped 0 overruns 0? carrier 0? collisions 0
lo: flags=73<UP,LOOPBACK,RUNNING>? mtu 65536
? ? ? ? inet 127.0.0.1? netmask 255.0.0.0
? ? ? ? inet6 ::1? prefixlen 128? scopeid 0x10<host>
? ? ? ? loop? txqueuelen 1? (Local Loopback)
? ? ? ? RX packets 0? bytes 0 (0.0 B)
? ? ? ? RX errors 0? dropped 0? overruns 0? frame 0
? ? ? ? TX packets 0? bytes 0 (0.0 B)
? ? ? ? TX errors 0? dropped 0 overruns 0? carrier 0? collisions 0
[root@centos7 ~]#
