[rbldnsd] List servers

[Scott Haneda]

On Mar 12, 2010, at 8:55 AM, Bill Landry wrote:

> Probably best to provide Marc with an rsync feed, unless you can withstand a million queries per day.  ;-)

I have often wondered about some of the larger DNSBL installations out there.

What type of system resources and bandwidth on average are needed per roughly each million request to rbldnsd?  If I were to start to offer up my DNSBL and DNSWL to the public, does anyone know of services in which will ( for a fee I would imagine ) take my zone and mirror it, so they incur the resource hit, or attacks against the DNS?

Any general stats would be appreciated.  I see a good deal of DNSBL's only last about a year.  Keeping up on them is work to be honest, they all come and go pretty quick.  SpamHaus, SpamCop, and a few others have stood the test of time, but the new ones, KarmaSphere, and the others, who all start out with really great service and what I think are solid lists, end up going belly up in short time.

I was always under the impression this would be pretty low load stuff.  I have a moderately busy DNS running BIND, which is not nearly as efficient as rbldnsd, it does not do recursive, but it does answer a constant few hundred queries per second, and this is on a machine that does a whole bunch of other things.  I never even see named in my process manager, it is always pretty low down on the list as far as CPU goes.

Thank you for any general information and experience you can share in this area.
-- 
Scott * If you contact me off list replace talklists@ with scott@ *