How to Change Your IP Address From the Command Line in Linux

By Taylor Gibb on July 11th, 2012

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Almost everybody can figure out how to change their IP address using an interface, but did you know you can set your network card’s IP address using a simple command from the command line?

This trick should work on all Debian-based Linux distros, including Ubuntu. To get started, type ifconfig into the terminal and hit Enter, take note of the name of the interface that you want to change the settings for.

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To change the settings, you also use the ifconfig command, this time with a few parameters:

sudo ifconfig eth0 192.168.0.1 netmask 255.255.255.0

That’s about all all you need to do to change your IP. Of course, the above command assumes a few things:

  • The interface that you want to change the IP for is eth0
  • The IP you want to give the interface is 192.168.0.1
  • The Subnet Mask you want to set for the interface is 255.255.255.0

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If you run ifconfig again, you will see that your interface has now taken on the new settings you assigned to it.

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If you wondering how to change the Default Gateway, you can use the route command.

sudo route add default gw 192.168.0.253 eth0

This will set your Default Gateway on the eth0 interface to 192.168.0.253.

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To see your new setting, you will need to display the routing table.

route -n

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That’s all there is to it.

Taylor Gibb is a Microsoft MVP and all round geek, he loves everything from Windows 8 to Windows Server 2012 and even C# and PowerShell. You can also follow him on Google+

  • Published 07/11/12
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