Centos7修改网卡名称

一、查看网络

[root@racnode03 ~]# ifconfig
ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.1.88  netmask 255.255.255.0  broadcast 192.168.1.255
        inet6 fe80::fa76:c0dd:49a5:894e  prefixlen 64  scopeid 0x20<link>
        ether 00:0c:29:93:b4:d9  txqueuelen 1000  (Ethernet)
        RX packets 60  bytes 8359 (8.1 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 69  bytes 11673 (11.3 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

ens34: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        ether 00:0c:29:93:b4:e3  txqueuelen 1000  (Ethernet)
        RX packets 7  bytes 420 (420.0 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

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 1000  (Local Loopback)
        RX packets 68  bytes 5520 (5.3 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 68  bytes 5520 (5.3 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:f1:02:e8  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

二、修改启动项

在启动项中添加net.ifnames=0 biosdevname=0，禁用biosdevname

[root@racnode03 ~]# 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=rhel/root rd.lvm.lv=rhel/swap net.ifnames=0 biosdevname=0 rhgb quiet"
GRUB_DISABLE_RECOVERY="true"

[root@racnode03 ~]# grub2-mkconfig -o /boot/grub2/grub.cfg
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-3.10.0-1127.el7.x86_64
Found initrd image: /boot/initramfs-3.10.0-1127.el7.x86_64.img
Found linux image: /boot/vmlinuz-0-rescue-a4b1f754056b45078ec2b94c3374d35d
Found initrd image: /boot/initramfs-0-rescue-a4b1f754056b45078ec2b94c3374d35d.img
done

三、添加网卡绑定策略

[root@racnode03 ~]# more /etc/udev/rules.d/70-persistent-net.rules
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:0c:29:93:b4:d9", ATTR{type}=="1", KERNEL=="eth*", NAME="ens36"

SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:0c:29:93:b4:e3", ATTR{type}=="1", KERNEL=="eth*", NAME="ens33"

四、设置IP

[root@racnode03 ~]# cp /etc/sysconfig/network-scripts/ifcfg-ens34 /etc/sysconfig/network-scripts/ifcfg-ens36

[root@racnode03 ~]# vim /etc/sysconfig/network-scripts/ifcfg-ens36
TYPE=Ethernet
PROXY_METHOD=none
BROWSER_ONLY=no
BOOTPROTO=none
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=ens36
UUID=42f5d931-5b76-419e-b2f8-d1b73879d405
DEVICE=ens36
ONBOOT=yes
IPADDR=10.0.0.88
PREFIX=24
GATEWAY=192.168.1.1
IPV6_PRIVACY=no

五、重启服务器

[root@racnode03 ~]# shutdown -r now