CentOS多网卡重命名配置

4t2eq

在CentOS7中我安装了3块网卡，但是名字是enoxxxxx的格式，让我这个有强迫症的***座很是不爽，以下是我配置网卡并且重命名为ethx的详细步骤


前提工作要做好：

1.查看网卡UUID

# nmcli con show
名称  UUID                                  类型            设备
eth1  dfc9199c-7b47-4209-a396-109bf44e683a  802-3-ethernet  eth1
eth2  020d86aa-548f-49c2-9cb0-f6cfffdb8219  802-3-ethernet  eth2
eth0  a5e6ae5c-dd71-48be-b374-ad64121bd785  802-3-ethernet  eth0

2.查看网卡信息

# nmcli device show [设备名]  例：

# nmcli device show eth0

GENERAL.设备:                           eth0
GENERAL.类型:                           ethernet
GENERAL.硬盘:                           00:0C:29:94:C8:08
GENERAL.MTU:                            1500
GENERAL.状态:                           100 (连接的)
GENERAL.CONNECTION:                     eth0
GENERAL.CON-PATH:                       /org/freedesktop/NetworkManager/ActiveConnection/0
WIRED-PROPERTIES.容器:                  开
IP4.地址[1]:                            192.168.66.4/24
IP4.网关:                               192.168.66.1
IP4.DNS[1]:                             202.106.46.151
IP6.地址[1]:                            fe80::20c:29ff:fe94:c808/64
IP6.网关:                              

  


步入正题


进入到网卡配置文件目录
# cd /etc/sysconfig/network-scripts

将网卡重新命名
# mv ifcfg-eno16777736 ifcfg-eth0
修改网卡信息
# vim ifcfg-eth0
HWADDR=00:0c:29:94:c8:08
TYPE=Ethernet
BOOTPROTO=static
DEFROUTE=yes
PEERDNS=yes
PEERROUTES=yes
IPV4_FAILURE_FATAL=yes
NAME=eth0
UUID=a5e6ae5c-dd71-48be-b374-ad64121bd785
# DEVICE=eno16777736
ONBOOT=yes
IPADDR=192.168.66.4
NETMASK=255.255.255.0
GATEWAY=192.168.66.1
DNS1=202.106.46.151
# DEVICE=eth0


将配置文件拷贝出来两份作为另外两个网卡的配置文件
# cp ifcfg-eth0 ifcfg-eth1
# cp ifcfg-eth0 ifcfg-eth2
编辑修改：
# vim ifcfg-eth1



HWADDR=00:0c:29:94:c8:12
TYPE=Ethernet
BOOTPROTO=static
DEFROUTE=yes
PEERDNS=yes
PEERROUTES=yes
IPV4_FAILURE_FATAL=yes
NAME=eth1
UUID=dfc9199c-7b47-4209-a396-109bf44e683a
ONBOOT=yes
IPADDR=192.168.67.4
NETMASK=255.255.255.0
# DEVICE=eth0

编辑修改
# vim ifcfg-eth2
HWADDR=00:0c:29:94:c8:1c
TYPE=Ethernet
BOOTPROTO=static
DEFROUTE=yes
PEERDNS=yes
PEERROUTES=yes
IPV4_FAILURE_FATAL=yes
NAME=eth2
UUID=020d86aa-548f-49c2-9cb0-f6cfffdb8219
# DEVICE=eno16777736
ONBOOT=yes
IPADDR=192.168.68.4
NETMASK=255.255.255.0
# DEVICE=eth0


开始为重命名做配置        
# vi /etc/sysconfig/grub

GRUB_TIMEOUT=5
GRUB_DEFAULT=saved
GRUB_DISABLE_SUBMENU=true
GRUB_TERMINAL_OUTPUT="console"
GRUB_CMDLINE_LINUX="rd.lvm.lv=centos/root rd.lvm.lv=centos/swap crashkernel=auto net.ifnames=0 biosdevname=0 net.ifnames=1 biosdevname=1 net.ifnames=2 biosdevname=2 rhgb quiet"           //加粗为添加内容
GRUB_DISABLE_RECOVERY="true"



重新加载到启动中
# grub2-mkconfig -o /boot/grub2/grub.cfg
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-3.10.0-229.el7.x86_64
Found initrd image: /boot/initramfs-3.10.0-229.el7.x86_64.img
Found linux image: /boot/vmlinuz-0-rescue-9bede79b46bd4e9696b92a4ec68a97b1
Found initrd image: /boot/initramfs-0-rescue-9bede79b46bd4e9696b92a4ec68a97b1.img
done

重新启动系统reboot
查看网卡信息
# ifconfig
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.66.4  netmask 255.255.255.0  broadcast 192.168.66.255
        inet6 fe80::20c:29ff:fe94:c808  prefixlen 64  scopeid 0x20<link>
        ether 00:0c:29:94:c8:08  txqueuelen 1000  (Ethernet)
        RX packets 690  bytes 69262 (67.6 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 488  bytes 65725 (64.1 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

eth1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.67.4  netmask 255.255.255.0  broadcast 192.168.67.255
        inet6 fe80::20c:29ff:fe94:c812  prefixlen 64  scopeid 0x20<link>
        ether 00:0c:29:94:c8:12  txqueuelen 1000  (Ethernet)
        RX packets 129  bytes 15944 (15.5 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 26  bytes 3927 (3.8 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

eth2: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.68.4  netmask 255.255.255.0  broadcast 192.168.68.255
        inet6 fe80::20c:29ff:fe94:c81c  prefixlen 64  scopeid 0x20<link>
        ether 00:0c:29:94:c8:1c  txqueuelen 1000  (Ethernet)
        RX packets 127  bytes 15613 (15.2 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 25  bytes 3609 (3.5 KiB)
        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 0  (Local Loopback)
        RX packets 4  bytes 420 (420.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 4  bytes 420 (420.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

发现哦了