Linux 篇：更改 CentOS 7 的网卡名称

超、凢脫俗 2024-03-16 20:27 22阅读 0赞

\`\`\` 一、网卡配置文件名称重命名为eth0 (也可以改为其他名称)

\[root@Jaking11 ~\]\# ifconfig ens33: flags=4163 mtu 1500 inet 192.168.10.11 netmask 255.255.255.0 broadcast 192.168.10.255 inet6 fe80::250:56ff:fe29:eae prefixlen 64 scopeid 0x20> ether 00:50:56:29:0e:ae txqueuelen 1000 (Ethernet) RX packets 132 bytes 14492 (14.1 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 115 bytes 13105 (12.7 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

lo: flags=73 mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 inet6 ::1 prefixlen 128 scopeid 0x10 loop txqueuelen 1000 (Local Loopback) RX packets 140 bytes 11204 (10.9 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 140 bytes 11204 (10.9 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

\[root@Jaking11 ~\]\# \[root@Jaking11 ~\]\# cd /etc/sysconfig/network-scripts/ \[root@Jaking11 network-scripts\]\# ls ifcfg-ens33 ifdown-ppp ifup-eth ifup-sit ifcfg-lo ifdown-routes ifup-ippp ifup-Team ifdown ifdown-sit ifup-ipv6 ifup-TeamPort ifdown-bnep ifdown-Team ifup-isdn ifup-tunnel ifdown-eth ifdown-TeamPort ifup-plip ifup-wireless ifdown-ippp ifdown-tunnel ifup-plusb init.ipv6-global ifdown-ipv6 ifup ifup-post network-functions ifdown-isdn ifup-aliases ifup-ppp network-functions-ipv6 ifdown-post ifup-bnep ifup-routes \[root@Jaking11 network-scripts\]\# mv ifcfg-ens33 ifcfg-eth0 \[root@Jaking11 network-scripts\]\# vim ifcfg-eth0 TYPE=Ethernet PROXY*METHOD=none BROWSER*ONLY=no BOOTPROTO=static DEFROUTE=yes IPV4*FAILURE*FATAL=no NAME=eth0 DEVICE=eth0 ONBOOT=yes IPADDR=192.168.10.11 GATEWAY=192.168.10.2 NETMASK=255.255.255.0

二、禁用网卡命名规则

此功能通过/etc/default/grub文件来控制，要禁用此功能，在文件中加入"net.ifnames=0 biosdevname=0"即可

\[root@Jaking11 network-scripts\]\# vim /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"

三、添加udev网卡规则

在/etc/udev/rules.d目录中创建一个网卡规则70-persistent-net.rules文件，在文件中写入以下参数： SUBSYSTEM=="net",ACTION=="add",DRIVERS=="?*",ATTR\{address\}=="需要修改名称的网卡MAC地址",ATTR｛type｝=="1" ,KERNEL=="eth*",NAME="eth0"

参考配置：

\[root@Jaking11 rules.d\]\# vim 70-persistent-net.rules SUBSYSTEM=="net",ACTION=="add",DRIVERS=="?*",ATTR\{address\}=="00:50:56:29:0e:ae", ATTR｛type｝=="1" ,KERNEL=="eth*",NAME="eth0"

执行grub2-mkconfig -o /boot/grub2/grub.cfg命令生成更新grub配置参数

\[root@Jaking11 rules.d\]\# grub2-mkconfig -o /boot/grub2/grub.cfg Generating grub configuration file ... Found linux image: /boot/vmlinuz-3.10.0-957.el7.x86*64 Found initrd image: /boot/initramfs-3.10.0-957.el7.x86*64.img Found linux image: /boot/vmlinuz-0-rescue-fe49b659ccb940fa8d260a5897c0b08a Found initrd image: /boot/initramfs-0-rescue-fe49b659ccb940fa8d260a5897c0b08a.img done

重启Linux系统后验证网卡名称是否更改成功

\[root@Jaking11 ~\]\# ifconfig eth0: flags=4163 mtu 1500 inet 192.168.10.11 netmask 255.255.255.0 broadcast 192.168.10.255 inet6 fe80::250:56ff:fe29:eae prefixlen 64 scopeid 0x20> ether 00:50:56:29:0e:ae txqueuelen 1000 (Ethernet) RX packets 86 bytes 10889 (10.6 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 95 bytes 10828 (10.5 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

lo: flags=73 mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 inet6 ::1 prefixlen 128 scopeid 0x10 loop txqueuelen 1000 (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

看到 eth0 说明网卡名称更改成功！