Linux基操—8.改网卡名
Centos7修改了网卡的命名方式,想要保持原有的命名方式有两种办法:
装系统时修改
- 1.启动后,在选择安装方式界面按下 tab 键
- 2.结尾处加入 net.ifnames=0 biosdevname=0 直接回车
装完系统修改
1、修改网卡文件
[root@wg ~]# cd /etc/sysconfig/network-scripts/
[root@wg network-scripts]# mv ifcfg-en33 ifcfg-eth0
[root@wg network-scripts]# vi ifcfg-eth0
| NAME=eth0 // name修改为eth0
| DEVICE=eth0
2、编辑grub信息
[root@wg ~]# vi /etc/sysconfig/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=256M biosdevname=0 net.ifnames=0 rhgb quiet" // 修改项
| GRUB_DISABLE_RECOVERY="true"
# 我也奇怪自己注释为什么不用 # 而是用 // ,跟前端有仇!
3、生成启动菜单
[root@wg ~]# grub2-mkconfig -o /boot/grub2/grub.cfg
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-3.10.0-1160.el7.x86_64
Found initrd image: /boot/initramfs-3.10.0-1160.el7.x86_64.img
Found linux image: /boot/vmlinuz-0-rescue-a2e8aa21390a41a9932be298daca3ece
Found initrd image: /boot/initramfs-0-rescue-a2e8aa21390a41a9932be298daca3ece.img
done
4、验证环节
[root@wg ~]# reboot
[root@wg ~]# ifconfig eth0 // 为什么要用ifconfig?ss或者lsof命令怎么用,aaaaaa,想不起来鸟
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.3.121 netmask 255.255.255.0 broadcast 192.168.3.255
inet6 fe80::20c:29ff:fef2:b5e8 prefixlen 64 scopeid 0x20<link>
ether 00:0c:29:f2:b5:e8 txqueuelen 1000 (Ethernet)
RX packets 74 bytes 7774 (7.5 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 93 bytes 12017 (11.7 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0