Shulou(Shulou.com)05/31 Report--

Today, the editor will share with you the relevant knowledge points about how to view the physical information of the network card in Linux. The content is detailed and the logic is clear. I believe most people still know too much about this, so share this article for your reference. I hope you can get something after reading this article. Let's take a look at it.

The network card in Linux is marked as eth. The first network card is called eth0, the second is called eth2, and so on.

Use the lspci or lsusb command to view the physical information of the network card

The command ifconfig is used to view the network card information

Ifconfig-a

Ifconfig eth0

Lo Interface (loopback)

Commands ifup and ifdown are used to enable and shut down a network card interface.

Ifup eth0

Ifdown eth0

We usually use the setup command to set the Nic information

The configuration information of the Nic is saved in the following directory:

/ etc/sysconfig/network-scripts/

The configuration file is the name of the ifcfg- Nic, such as ifcfg-eth0

DEVICE= "eth0"

BOOTPROTO= "static" | dhcp

GATEWAY= "100.92.255.248"

HWADDR= "00:50:56:B3:82:DE"

IPADDR= "100.92.255.202"

IPV6INIT= "no"

NETMASK= "255.255.255.128"

NM_CONTROLLED= "yes"

ONBOOT= "yes"

TYPE= "Ethernet"

UUID= "0c753010-636b-4d92-8b4f-f07d310df2ff"

The DNS server IP is saved in:

/ etc/resolv.conf

The hostname configuration is saved in:

/ etc/sysconfig/network

Static hostname profile

/ etc/hosts

Common network commands:

Ping 192.168.1.1

Host www.linuxtest.net

Dig www.linuxtest.net

Ip route

Traceroute www.linuxtest.net

Mtr testing network quality

Ifconfig eth0 100.92.250.108 netmask 255.255.255.128

Network troubleshooting follows the principles from top to bottom and from the inside to the outside.

Gateway

Netstat-r

Route-n

Cat / etc/resolv.conf View DNS

Ip route show

Route-n

These are all the contents of the article "how to View the physical Information of the Network Card in Linux". Thank you for reading! I believe you will gain a lot after reading this article. The editor will update different knowledge for you every day. If you want to learn more knowledge, please pay attention to the industry information channel.

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