Helpful Linux Networking Command

Generally handle your network setting via the GUI in most Linux distros these days it is forever high-quality to be familiar with the command line tools. We are left to review a number of choose commands from a couple of tools that are characteristically built-in in the popular Linux distros. If you desire full facts on the tool and its option, refer to its man page: type man followed by the tool name. Now carry up a terminal and let’s get started!

ifconfig for basic interface and IP configuration : The if config tool derived from interface configuration provide a few extremely basic, but vital, functions. It lets you turn network adapters on and off and assign IP address and net mask details. Some of the common commands:

View current configuration of network interfaces, including the interface names:

ifconfig

Turn an adapter on (up) or off (down):

ifconfig

Assign an IP address to an adapter:

if config

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ethtool managages ethernet card settings : Ethtool lets you view and change many different settings for ethernet adapters which does not include Wi-Fi cards. You can manage many different advanced settings, including tx/rx, check summing, and wake-on-LAN settings. However here are more basic commands you might be interested in: Display the driver information for a specific network adapter, great when checking for software compatibility.

ethtool -i

ethtool -p

Display network statistics:

ethtool -S

Set the connection speed of the adapter in Mbps:

iw config for wireless configuration

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The iwconfig tool is similar to if config and ethtool for wireless cards. You can vision and set the basic Wi-Fi network details, such as the SSID, channel, and encryption. There is also many advanced settings you can view and change, including receive sensitivity, RTS/CTS, fragmentation, and retries. Some commands may want to try: Exhibit the wireless settings of your interfaces, as well as the interface names you will need for extra commands:

iwconfig

Set the ESSID (Extended Service Set Identifier) or network name:

iwconfig essid

Example: iwconfig “my network”

Example: iwconfig any

Set the wireless channel of the radio

iwconfig

Input a WEP encryption key

iwconfig eth0 key

Simply allow the adapter to join to an AP with the MAC address you specify:

iwconfig ap

Set the transmit power of the radio, if support by the wireless card, in dBm format by default or mW when specified:

iwconfig txpower

Example: iwconfig eth0 txpower 15

Example: iwconfig eth0 txpower 30mW

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