Slow DNS lookup? Disable IPv6!

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Slow DNS lookup? Disable IPv6!

http://beranger.org/index.php?article=1127

Since I experienced slow DNS lookup with Debian testing/unstable, I felt I need to disable IPv6 — this has largely been blamed for that, and it's not really needed by most of the people.

Here's the summary of what I can think of, with alternate methods in case the first one doesn't work with you:

Note:

In distros using /etc/modprobe.conf, beware that you might get overriden by /etc/modprobe.conf.local or by /etc/modprobe.d/*.
If you disable IPv6, I suppose you don't need tunnels either. You could also add there: install sit0 /bin/true
A last "anti-IPv6" issue: don't forget the old trick of checking if your Firefox has IPv6 disabled: o CTRL+L, about:config (Enter) o Filter by ipv6. o Set network.dns.disableIPv6 to true.

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Single file version available here.
Last updated on 2008-06-28.
To discuss, comment here.

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