作者：wuming66486 | 来源：互联网 | 2023-02-06 19:21
查看ip[root@localhostnetwork-scripts]#ipaddr1:lo:<LOOPBACK,UP,LOWER_UP>mtu65536qdiscnoq
查看ip
[root@localhost network-scripts]# ip addr
1: lo: mtu 65536 qdisc noqueue state UNKNOWN qlen 1
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eno16777736: mtu 1500 qdisc pfifo_fast state UP qlen 1000
link/ether 00:0c:29:a7:a0:8c brd ff:ff:ff:ff:ff:ff
inet 192.168.1.105/24 brd 192.168.1.255 scope global dynamic eno16777736
valid_lft 4214sec preferred_lft 4214sec
inet 192.168.1.122/24 brd 192.168.1.255 scope global secondary eno16777736
valid_lft forever preferred_lft forever
inet6 fe80::ac30:2bcb:e910:3ae/64 scope link
valid_lft forever preferred_lft forever
3: virbr0: mtu 1500 qdisc noqueue state DOWN qlen 1000
link/ether 52:54:00:74:cb:1a brd ff:ff:ff:ff:ff:ff
inet 192.168.122.1/24 brd 192.168.122.255 scope global virbr0
valid_lft forever preferred_lft forever
4: virbr0-nic: mtu 1500 qdisc pfifo_fast master virbr0 state DOWN qlen 1000
link/ether 52:54:00:74:cb:1a brd ff:ff:ff:ff:ff:ff
[root@localhost network-scripts]# ip a
1: lo: mtu 65536 qdisc noqueue state UNKNOWN qlen 1
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eno16777736: mtu 1500 qdisc pfifo_fast state UP qlen 1000
link/ether 00:0c:29:a7:a0:8c brd ff:ff:ff:ff:ff:ff
inet 192.168.1.105/24 brd 192.168.1.255 scope global dynamic eno16777736
valid_lft 4157sec preferred_lft 4157sec
inet 192.168.1.122/24 brd 192.168.1.255 scope global secondary eno16777736
valid_lft forever preferred_lft forever
inet6 fe80::ac30:2bcb:e910:3ae/64 scope link
valid_lft forever preferred_lft forever
3: virbr0: mtu 1500 qdisc noqueue state DOWN qlen 1000
link/ether 52:54:00:74:cb:1a brd ff:ff:ff:ff:ff:ff
inet 192.168.122.1/24 brd 192.168.122.255 scope global virbr0
valid_lft forever preferred_lft forever
4: virbr0-nic: mtu 1500 qdisc pfifo_fast master virbr0 state DOWN qlen 1000
link/ether 52:54:00:74:cb:1a brd ff:ff:ff:ff:ff:ff
可以发现网卡名称eno16777736,现在想要修改名称
/etc/sysconfig/network-scripts/ifcfg-eno16777736
打开文件，修改内部的DECIVE为eth0,保存退出
重命名，将文件ifcfg-eno16777736文件名修改为eth0
cd /etc/sysconfig/network-scripts/
mv ifcfg-eno16777736 ifcfg-eth0
禁用该可预测命名规则。对于这一点，你可以在启动时传递“net.ifnames=0 biosdevname=0 ”的内核参数。这是通过编辑/etc/default/grub并加入“net.ifnames=0 biosdevname=0 ”到GRUBCMDLINELINUX变量来实现的。
gedit /etc/sysconfig/grub
原内容：
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"
GRUB_DISABLE_RECOVERY="true"
修改后：
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"
构建新的img文件
[root@localhost sysconfig]# grub2-mkconfig -o /boot/grub2/grub.cfg
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-3.10.0-514.10.2.el7.x86_64
Found initrd image: /boot/initramfs-3.10.0-514.10.2.el7.x86_64.img
Found linux image: /boot/vmlinuz-3.10.0-327.el7.x86_64
Found initrd image: /boot/initramfs-3.10.0-327.el7.x86_64.img
Found linux image: /boot/vmlinuz-0-rescue-ca3d9f9f71fb441da7b400bf4c01ce84
Found initrd image: /boot/initramfs-0-rescue-ca3d9f9f71fb441da7b400bf4c01ce84.img
done
重新启动服务器
[root@localhost ~]# reboot
重新查看ip地址：
不要打我，我这边报Mac地址冲突，但是网上很多人这么操作是成功的，后面再尝试！
http://www.jb51.net/article/120340.htm
http://www.linuxidc.com/Linux/2017-03/141384.htm
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