From: Jeff Moore <jcmoore@...>
Date: 2008-09-13T06:55:11+09:00
Subject: Re: Socket.getaddrinfo and IPSocket.getaddress super slow?

Brian Candler wrote:
>> Anyone know why Socket.getaddrinfo and IPSocket.getaddress take up to 3
>> seconds to return when the host doesn't have a record in DNS?
> 
> They seem to do reverse DNS lookups on occasions where you might not 
> want
> them to (e.g. finding the IP address to which a socket is bound). Try 
> adding
> to the top of your program:
> 
>   require 'socket'
>   Socket.do_not_reverse_lookup=true

The Zeroconf (avahi) mDNS service seems to pretty well bone things up on 
Ubuntu 7/8 as well. You might want to shut it off and see what happens 
(it seems to be running by default) you're hanging out with zoo 
critters.
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