Home > English, Tech Crunch > HOWTO Disable IPv6 support on Debian

HOWTO Disable IPv6 support on Debian

This article is incomplete and was first written in July 2006
for the BeezNest technical website (http://glasnost.beeznest.org/articles/342).

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:

network.dns.disableIPv6

[1] deprecated for kernels 2.6+

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