CentOS multi-Nic renaming configuration

CentOS multi-Nic renaming configuration

In CentOS7 I installed 3 network card, but the name is enoxxxxx format, let me this obsessive-compulsive of the seat is very uncomfortable, the following is I configure the network card and renamed to Ethx detailed steps

The premise work should be done well:

1. Check the network card UUID

# NMCLI Con Show

Name UUID type device

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. View network card information

# NMCLI device show [device name] Example:

# NMCLI Device Show eth0

General. Equipment: eth0

General. Type: Ethernet

General. HDD: 00:0c:29:94:c8:08

General. mtu:1500

General. Status: 100 (connected)

General. Connection:eth0

General. Con-path:/org/freedesktop/networkmanager/activeconnection/0

Wired-properties. Container: Open

IP4. Address [1]: 192.168.66.4/24

IP4. Gateway: 192.168.66.1

IP4. DNS[1]: 202.106.46.151

IP6. Address [1]: FE80::20C:29FF:FE94:C808/64

IP6. Gateway:

Step into the chase

Go to the network card configuration file directory

# cd/etc/sysconfig/network-scripts

Renaming the NIC

# MV ifcfg-eno16777736 Ifcfg-eth0

Modify network card information, not very understanding of the small partners please refer to my other detailed explanation http://baoer7758.blog.51cto.com/8187563/1638229

# 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

Copy the configuration file two copies of the configuration file for the other two network cards

# CP Ifcfg-eth0 Ifcfg-eth1

# CP Ifcfg-eth0 Ifcfg-eth2

Edit changes:

# 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

Edit Modify

# 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

Start to configure for renaming, not very understanding of the small partners please refer to my other detailed explanation http://baoer7758.blog.51cto.com/8187563/1638229

# 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 "//bold to add content

Grub_disable_recovery= "true"

Reload to Startup

# 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

Restart the system reboot

viewing network card information

# 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 ScopeID 0x20<link>

Ether 00:0c:29:94:c8:08 Txqueuelen (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 ScopeID 0x20<link>

Ether 00:0c:29:94:c8:12 Txqueuelen (Ethernet)

RX packets 129 bytes 15944 (15.5 KiB)

RX errors 0 dropped 0 overruns 0 frame 0

TX Packets 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 ScopeID 0x20<link>

Ether 00:0c:29:94:c8:1c Txqueuelen (Ethernet)

RX Packets 127 Bytes 15613 (15.2 KiB)

RX errors 0 dropped 0 overruns 0 frame 0

TX Packets 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 ScopeID 0x10

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

I found out!

This article is from the "Isuncle Technology blog" blog, make sure to keep this source http://baoer7758.blog.51cto.com/8187563/1638277

CentOS multi-Nic renaming configuration