HOWTO Disable IPv6 support on Debian

This article is incomplete and was first written in July 2006
for the BeezNest technical website (

IPv6 is still not widely accepted and even less used. Many networked applications in Debian are enabling IPv6 support anyway, which result in a drop in performance and longer delays in day-to-day use.

The effort to do the opposite (ie activating IPv6 throughout Debian) is located here: Debian IPv6 Project

To disallow ipv6 kernel module autoloading, deactivate it in modutils [1] or module-init-tools in /etc/modprobe.d/aliases.

To disable IPv6 name resolution in Firefox or other Gecko-based browsers, change the following option to true:


[1] deprecated for kernels 2.6+

Related Posts

HOWTO Convert carriage returns between UNIX and DOS on Debian

This article was first written in February 2005 for the BeezNest technical website...

HOWTO Setup Bonding Ethernet on Debian with a 2.6 kernel

This article was first written in October 2004 for the BeezNest technical website...