[Sussex] Ruby DNS resolver

[Ronan Chilvers]

Hi folks

Been kicking around with ruby and DNS resolving, as you do!! Finding the
DNS resolution is VERY slow. Putting together a little class to check IPs 
in DNSBL lists. Looking up 1 ip in 4 DNSBLs takes over a minute which is 
way too slow. The eventual idea is putting together a little policy
script for postfix which scores a set of mail attributes based on
various stuff including DNSBL results.

Anyone any thoughts on speeding this up? I've tried both resolv and
resolv-replace libraries and there's no discernable difference in speed.

Cheers
-- 
Ronan
e: ronan at thelittledot.com
t: 01903 739 997

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