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How to configure the CVM network card

2025-01-19 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Servers >

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How to configure the CVM network card? After installing the CVM, some users will find that there are many files that they are not very familiar with, such as the configuration file of centos network card in linux system. Next, the editor of Xiaoyun Technology will introduce you.

After Linux is installed, the network card is configured with dynamic IP by default. We can enter ip addr in the linux terminal to view it.

For example: [root@localhost ~] # ip addr

After the input is completed, there will be a lo and enp0sxxx network card, if we need, is to configure the enp0sxx network card.

It should be noted here that if the network card set in the virtual software is a network address translation NAT

So in the network card of enp0sxx, the ip address shows 10.0.2.xxx.

Centos's network card configuration file directory is in / etc/sysconfig/network-scripts

For example: [root@localhost ~] # cd / etc/sysconfig/network-scripts

You need to enter this directory first, where ls can find the configuration file of enp0sxx.

The file name is ifcfg-enp0sxxx

Then use the vi command to open the file

For example: [root@localhost ~] # vi ifcfg-enp0sxxx

After entering, use command I to edit it

You only need to change the parameters of the network card configuration file to

BOOTPROTO=static

IPADDR=192.168.1.xxx

GATEWAY=192.168.1.x

NETMASK=255.255.255.0

ONBOOT=yes

What needs to be explained here is that

BOOTPROTO=static refers to changing the network card mode to static.

IPADDR=192.168.1.xxx, this is the ip address of the host.

GATEWAY=192.168.1.1 this is the gateway of the host, which needs to be set to the first ip address of the router in segment D

NETMASK=255.255.255.0 subnet mask this is the default

The ONBOOT=yes network card starts automatically after booting.

After the modification is completed, the ESC key exits the editing mode. After entering the editing mode, enter: wq to exit the save.

And you need to restart the network card using the command systemctl restart network.

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