Difference between revisions of "Talk:Dnsmasq"

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(Dnsmasq and Pidgin/Gtalk: new section)
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== Comments ==
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== need information for fixed IPs ==
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when this is set in rc.conf I think that require :
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{ echo "nameserver 127.0.0.1"; grep -v "^#" /etc/resolv.conf | head -2; } > /tmp/resolv.conf
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then backup /etc/resolv.conf and last :
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mv /tmp/resolv.conf /etc/resolv.conf
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--[[User:Sputnick|Sputnick]] 17:59, 1 August 2011 (EDT)
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: Any error with direct change /etc/resolv.conf? Move around tmp is not very "Simple". -- [[User:Fengchao|Fengchao]] ([[User talk:Fengchao|talk]]) 01:27, 20 March 2013 (UTC)
  
== Suggestions ==
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== Force DNS cache persistence? ==
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I've noticed that the DNS cache expires very quickly (less than 60 seconds) for many domains thereby defeating the purpose of caching it in the first place. Is there a way to force entries to last longer? [[User:Neounk|Neounk]] ([[User talk:Neounk|talk]]) 01:30, 31 March 2013 (UTC)
  
=== Testing without "http://" ===
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== Dnsmasq and Pidgin/Gtalk ==
In the test section it is recommended that the reader tries
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dig http://archlinux.org | grep "Query time"
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Using dnsmasq for dns caching seems to break gtalk on pidgin. Editing /etc/dhcpcd.conf and adding
However, on both my systems running dnsmasq-2.50, querying anything prefixed with a "http://" causes dnsmasq to automatically forward the query and not to cache the reply:
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option 'domainneed' '1' solves the issue on my machine.
% dig "http://archlinux.org" | grep "Query time"; !#
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;; Query time: 493 msec
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if others verify the issue and fix, maybe consider for addition to the wiki?
;; Query time: 485 msec
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The daemon logs
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[[User:LiamMcCalloway|LiamMcCalloway]] ([[User talk:LiamMcCalloway|talk]]) 01:10, 11 June 2013 (UTC) Liam
dnsmasq: forwarded query to 208.67.220.220
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dnsmasq: forwarded query to 208.67.220.220
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This might lead the reader to think dnsmasq is not working, when it actually works fine with:
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% dig "archlinux.org" | grep "Query time"; !#
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;; Query time: 508 msec
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;; Query time: 0 msec
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The daemon logs
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dnsmasq: query[A] archlinux.org from 127.0.0.1
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dnsmasq: forwarded archlinux.org to 208.67.222.222
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dnsmasq: forwarded archlinux.org to 208.67.220.220
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dnsmasq: reply archlinux.org is 66.211.214.131
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dnsmasq: query[A] archlinux.org from 127.0.0.1
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dnsmasq: cached archlinux.org is 66.211.214.131
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So, I'm removing the "http://" prefix. -- [[User:Tresende|Tresende]] 11:39, 12 November 2009 (EST)
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Revision as of 01:10, 11 June 2013

need information for fixed IPs

when this is set in rc.conf I think that require :

{ echo "nameserver 127.0.0.1"; grep -v "^#" /etc/resolv.conf | head -2; } > /tmp/resolv.conf

then backup /etc/resolv.conf and last :

mv /tmp/resolv.conf /etc/resolv.conf

--Sputnick 17:59, 1 August 2011 (EDT)

Any error with direct change /etc/resolv.conf? Move around tmp is not very "Simple". -- Fengchao (talk) 01:27, 20 March 2013 (UTC)

Force DNS cache persistence?

I've noticed that the DNS cache expires very quickly (less than 60 seconds) for many domains thereby defeating the purpose of caching it in the first place. Is there a way to force entries to last longer? Neounk (talk) 01:30, 31 March 2013 (UTC)

Dnsmasq and Pidgin/Gtalk

Using dnsmasq for dns caching seems to break gtalk on pidgin. Editing /etc/dhcpcd.conf and adding option 'domainneed' '1' solves the issue on my machine.

if others verify the issue and fix, maybe consider for addition to the wiki?

LiamMcCalloway (talk) 01:10, 11 June 2013 (UTC) Liam