Shulou(Shulou.com)06/02 Report--

In the RHEL7.x version, the naming of the network card has changed from eth0,1,2 to enoxxxx. En stands for enthernet (Ethernet card) and o represents onboard (built-in). That string of numbers is automatically generated by the index number of the motherboard. Compared with the original naming method, the disadvantage is that it is too long and difficult to remember, and the advantage is that the number is unique and it is not easy to make mistakes when the system is migrated. How do you set up ip addresses, gateways, and dns? Three commonly used methods are described below.

Method 1:

Modify the network card configuration file

[root@ys ~] # vim / etc/sysconfig/network-scripts/ifcfg-eno16777728YPE=EthernetBOOTPROTO=static | | none / / enable static IP address, BOOTPROTO=dhcp Enable dynamic acquisition of DEFROUTE=yesIPV4_FAILURE_FATAL=noIPV6INIT=yes | | no / / whether IPV6IPV6_AUTOCONF=yesIPV6_DEFROUTE=yesIPV6_FAILURE_FATAL=noNAME=eno16777728 / / device name UUID=f248e89a-6788-489f-a236-a401ff596a38 / / device identification number DEVICE=eno16777728 / / device name ONBOOT=yes / / whether to start network connection IPADDR=192.168.1.100 / / set IP address PREFIX=24 / is supported / set subnet mask length GATEWAY=192.168.1.1 / / set gateway DNS1=12.3.1.1 / / set DNSIPV6_PEERDNS=yesIPV6_PEERROUTES=yes

Method 2:

Use the nmtui command, as shown below

[root@ys Desktop] # nmtui

Method 3:

Use the nm-connection-editor command, as shown below

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

Finally, the modification takes effect by restarting the network card service.

[root@ys ~] # systemctl restart network

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