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需求:原来的网卡名为eno16666628,需要修改为eth0。需要完整执行如下几个步骤,否则可能导致重启连接不上服务器:
1、修改/etc/default/grub文件
编辑/etc/default/grub并加入“net.ifnames=0 biosdevname=0”到GRUB_CMDLINE_LINUX变量:
sed -i 's/rhgb/net.ifnames=0 biosdevname=0 rhgb/' /etc/default/grub
再执行如下命令,使系统重新加载grub文件:
grub2-mkconfig -o /boot/grub2/grub.cfg
2、修改/etc/udev/rules.d/70-persistent-net.rules文件
查看接口的MAC地址:
[root@docker35 ~]# ip link show
1: lo: <loopback,up,lower_up> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: eno16666628: <broadcast,multicast,up,lower_up> mtu 1500 qdisc pfifo_fast state UP mode DEFAULT qlen 1000
link/ether 00:0c:29:30:be:cd brd ff:ff:ff:ff:ff:ff
mac地址为00:0c:29:30:be:cd , 将MAC地址填入文件70-persistent-net.rules的ATTR中:
vi /etc/udev/rules.d/70-persistent-net.rules
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:0c:29:30:be:cd", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"
需要修改ATTR和NAME的值。
3、修改网卡配置文件
mv /etc/sysconfig/network-scripts/ifcfg-eno16666628 /etc/sysconfig/network-scripts/ifcfg-eth0
vi /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE="eth0"
NAME="eth0"
GATEWAY=192.168.1.254
IPADDR=192.168.1.35
ONBOOT=yes
USERCTL=no
BOOTPROTO=static
#HWADDR=00:0c:29:97:f1:5b
TYPE=Ethernet
IPV6INIT=no
DNS1=114.114.114.114
DNS2=8.8.8.8
ZONE=public
需要修改DEVICE和NAME的名称为eth0。
4、重启服务器
reboot
最后重启服务器即可。