How to Disable ipv6 on Ubuntu

By Angsuman Chakraborty, Gaea News Network
Friday, January 16, 2009

I have seen people facing problems with ipv6 in Ubuntu machines. The network performance dcecreases considerably through ipv6 protocols and there are some notable bugs too. So if you are wondering how you can get rid of this upgrade which is not actually upgrade by any means, then lemme give you a solution. Google search provides you with numerous solutions but most of them don’t work or is incomprehensible for your network. Here is a working trick.

  1. Open up the Terminal from Applications -> System Tools -> Terminal
  2. Type: $ vi /etc/modprobe.d/blacklist
  3. append the line: blacklist ipv6
  4. save the file and restart your machine!

You can verify that ipv6 is actually disabled using the following command:
$ ip a | grep inet6

Short and simple. Don’t forget to give us your feedback.

Filed under: How To, Linux

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