09 Dec 2011 Disable IPv6 on Ubuntu 11.10

This is a short HOWTO on disabling IP version 6 support on your ethernet devices like eth0 on Ubuntu 11.10.
I guess you can do this on earlier version of Ubuntu as well.

net.ipv6.conf.all.disable_ipv6 = 1

Run the following command to make this change effective immediately

# sudo sysctl -p

A result from this command could be like this

net.ipv6.conf.all.disable_ipv6 = 1

To check that IPv6 has been disabled or not, run the following command from your console window

# ip a | grep inet

IPv6 has been disabled if this command does not return any IPv6 addresses.

Tags: 11.10, howto, ipv6, sysct, sysctl.conf, Ubuntu, ubuntu oneiric

Posted by Hans-Henry Jakobsen