Linux Network Management commands

1. Using the ifconfig command to manage the network interface

Command: Ethtool eth0, viewing NIC information

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Command: ifconfig, view the information to activate the network port

Eth0 represents the first NIC

Lo represents the host loopback interface

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Command: ifconfig-a, view all network card information.

Eth1 is not active.

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Command: ifconfig eth0 down, close eth0 interface

Ifconfig eth0 up, activating eth0 interface

Command: Vim/etc/sysconfig/network-scripts/ifcfg-eth0, modifying configuration information for eth0

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Command: Route-n, show host route

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Command: Route add-net 192.168.0.0 netmask 255.255.255.0 GW 192.168.0.1 Add a default gateway

Route del-net 192.168.0.0 netmask 255.255.255.0 GW 192.168.0.1 Delete a default gateway

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Command: The ping www.baidu.com–c 2,-c option specifies the number of messages sent, where a test sends two messages

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Command: ping–c 1–r baidu.com,-r option to display the routing information passed by the message

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Command: Tracepath, equivalent to traceroute.

Command: Netstat-r, displays the system core routing table.

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Command: Netstat-an, digitally display all socket information

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Command: netstat-i, display all network interface information

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Command: Netstat–s, displaying protocol information

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Command: Ss-ta, displaying TCP connections

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Order: Whois 166.111.4.100, query 166.111.4.100 registration information

Need to install Jwhois package, install command: yum–y install Jwhois

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Linux Network Management commands