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This article will explain in detail how to configure network IP in RHEL7.0. The editor thinks it is very practical, so I share it with you as a reference. I hope you can get something after reading this article.

The naming mode of the network card in RHEL7 has changed from eth0,1,2 to enoXXXXX. En stands for enthernet (Ethernet) and o for onboard (built-in). That string of numbers is automatically generated by some kind of index number on the motherboard to ensure its uniqueness. Compared with the original naming method, this new method is longer and difficult to remember, but the advantage is that the number is unique and it is not easy to make mistakes when doing system migration.

1. Modify / etc/sysconfig/network-scripts/eno16777736

Check your Nic name (this machine is eno16777736):

[root@linuxprobe Desktop] # ifconfig

Eno16777736: flags=4163 mtu 1500

Inet 192.168.1.100 netmask 255.255.255.0 broadcast 192.168.1.255

Inet6 fe80::20c:29ff:feb8:2b07 prefixlen 64 scopeid 0x20

Inet6 fde0:b912:e3a9:0:20c:29ff:feb8:2b07 prefixlen 64 scopeid 0x0

Ether 00:0c:29:b8:2b:07 txqueuelen 1000 (Ethernet)

RX packets 37 bytes 5428 (5.3 KiB)

RX errors 0 dropped 0 overruns 0 frame 0

TX packets 62 bytes 8269 (8.0 KiB)

TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

Lo: flags=73 mtu 65536

Inet 127.0.0.1 netmask 255.0.0.0

Inet6:: 1 prefixlen 128 scopeid 0x10

Loop txqueuelen 0 (Local Loopback)

RX packets 134 bytes 10928 (10.6 KiB)

RX errors 0 dropped 0 overruns 0 frame 0

TX packets 134 bytes 10928 (10.6 KiB)

TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

[root@linuxprobe Desktop] #

Edit the ifcfg-eno16777736 file:

Red is the content that needs to be modified or added, save and exit.

Partial interpretation:

TYPE=Ethernet # Network Interface Type

BOOTPROTO=static # is dynamically dhcp

DEFROUTE=yes

IPV4_FAILURE_FATAL=yes

Does IPV6INIT=yes # support IPV6?

IPV6_AUTOCONF=yes

IPV6_DEFROUTE=yes

IPV6_FAILURE_FATAL=no

NAME=eno16777736 # Nic name

UUID=72cf53fd-534c-4765-912b-3df575a10a7d

ONBOOT=yes # enable automatically enable network connection

IPADDRO=192.168.1.20 # set IP address

GATEWAY0=192.168.1.1 # set Gateway

PREFIX0=24 # set the subnet mask

DNS1=192.168.1.1 # set DNS

HWADDR=00:0C:29:B8:2B:07

PEERDNS=yes

PEERROUTES=yes

IPV6_PEERDNS=yes

IPV6_PEERROUTES=yes

Restart the network card and test the network:

[root@linuxprobe Desktop] # systemctl restart network

two。 Graphic tool nmtui

Execute the command at the terminal:

[root@linuxprobe Desktop] # nmtui

You still need to restart the network card to take effect and test the network.

3. Graphic tool nm-connection-editor

Terminal executes commands:

[root@linuxprobe Desktop] # nm-connection-editor

As long as you can access the Internet in one of the three ways, it is not very easy to configure the services you need.

This is the end of the article on "how to configure network IP in RHEL7.0". I hope the above content can be helpful to you, so that you can learn more knowledge. if you think the article is good, please share it out for more people to see.

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