DNS Timeout Question

Discussion of EFnet's IRCDs (hybrid, ratbox, csircd)

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Joined: Tue Mar 11, 2008 9:46 pm

DNS Timeout Question

Postby Osmosis » Tue Mar 11, 2008 9:50 pm

What is the timeout for Efnet servers in regards to forward and reverse? I notice my ip address doesn't resolve on any server except irc.nac.net.

It might be because of the recursiveness of my reverse DNS servers. ip-in-addr -> ip-in-addr.datacenter.reverse.server.com -> ip-in-addr.my.reverse.server.com
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Joined: Fri Mar 11, 2005 5:18 pm
Location: The Netherlands

Re: DNS Timeout Question

Postby jilles » Wed Mar 12, 2008 5:21 pm

Ratbox does not allow more than one CNAME in a reverse lookup. One CNAME is allowed because that is the way to delegate reverse DNS for smaller than a /24. Any more than that would make the ircd spend too much time chasing CNAMEs imho.

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