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

After entering the Linux interface, right-click and select open terminal:

A command line window appears:

Use the ifconfig command to view the network configuration:

[root@localhost ~] # ifconfigens33: flags=4163 mtu 1500 ether 00:0c:29:b6:bb:ac txqueuelen 1000 (Ethernet) RX packets 125 bytes 7500 (7.3KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 0 bytes 0 (0.0B) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0lo: flags=73 mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 inet6:: 1 prefixlen 128 scopeid 0x10 Loop txqueuelen 1 (Local Loopback) RX packets 76 bytes 6908 (6.7 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 76 bytes 6908 (6.7 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0virbr0: flags=4099 mtu 1500 inet 192.168.122.1 netmask 255.255.255.0 broadcast 192.168.122.255 ether 52:54:00:36:da:62 txqueuelen 1000 (Ethernet) RX packets 0 bytes 0 (0.0B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 0 bytes 0 (0.0B) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

Lo is a local network, don't worry about it. Virbr0 is a virtual network card, which can be deleted. You can mainly configure ens33 and delete virbr0:

[root@localhost ~] # ifconfig virbr0 down # close the virbr0 network card [root@localhost ~] # brctl delbr virbr0 # Delete the virbr0 network card [root@localhost ~] # systemctl disable libvirtd.service # because the virtual network card is created by the libvirtd service, which is not very useful in Linux Therefore, boot Removed symlink / etc/systemd/system/multi-user.target.wants/libvirtd.service.Removed symlink / etc/systemd/system/sockets.target.wants/virtlockd.socket.Removed symlink / etc/systemd/system/sockets.target.wants/virtlogd.socket is directly prohibited here.

Configure ens33:

[root@localhost ~] # cd / etc/sysconfig/network-scripts/ # Network profile path [root@localhost network-scripts] # lsifcfg-ens33 ifdown-isdn ifup ifup-plip ifup-tunnelifcfg-lo ifdown-post ifup-aliases ifup-plusb ifup-wirelessifdown ifdown-ppp ifup-bnep ifup-post init.ipv6-globalifdown-bnep ifdown-routes ifup-eth ifup-ppp network-functionsifdown-eth ifdown-sit ifup-ib ifup-routes network-functions-ipv6ifdown-ib ifdown-Team ifup-ippp ifup-sitifdown-ippp Ifdown-TeamPort ifup-ipv6 ifup-Teamifdown-ipv6 ifdown-tunnel ifup-isdn ifup-TeamPort changes ifcfg-ens33 (the name may be different But basically this): [root@localhost network-scripts] # vim ifcfg-ens33TYPE=Ethernet # network type BOOTPROTO=none # IP acquisition method, there are dhcp automatic acquisition and static IP (none/static) NAME=ens33 # network name UUID=d1755a41-8026-42f1-871d-9cd78fa2aa3cDEVICE=ens33 # driver name ONBOOT=yes # set boot IPADDR=192.168.137.3 # set static IP address NETMASK=255.255.255.0 # subnet mask GATEWAY=192.168.137.254 # gateway DNS1=114.114.114.114 # DNSDNS2=202.96.134.133

Restart the network service after saving and exiting:

[root@localhost network-scripts] # systemctl restart network.service

Check again:

[root@localhost network-scripts] # ifconfigens33: flags=4163 mtu 1500 inet 192.168.137.2 netmask 255.255.255.0 broadcast 192.168.137.255 inet6 fe80::20c:29ff:feb6:bbac prefixlen 64 scopeid 0x20 ether 00:0c:29:b6:bb:ac txqueuelen 1000 (Ethernet) RX packets 898 bytes 60524 (59.1 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 26 bytes 3920 (3.8 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0lo: flags=73 mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 inet6:: 1 prefixlen 128 scopeid 0x10 loop txqueuelen 1 (Local Loopback) RX packets 100 bytes 9716 (9.4 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 100 bytes 9716 (9.4 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

You can see that IP has changed. To be on the safe side, you can ping:

[root@localhost network-scripts] # ping 192.168.137.2PING 192.168.137.2 (192.168.137.2) 56 (84) bytes of data.64 bytes from 192.168.137.2: icmp_seq=1 ttl=64 time=0.142 ms64 bytes from 192.168.137.2: icmp_seq=2 ttl=64 time=0.045 ms64 bytes from 192.168.137.2: icmp_seq=3 ttl=64 time=0.030 ms64 bytes from 192.168.137.2: icmp_seq=4 ttl=64 time=0.063 ms64 bytes from 192.168 137.2: the above icmp_seq=5 ttl=64 time=0.033 ms is all the content of the article "how to configure the Network of 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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