Re: thoughts about a new module called check_spammer_connect

On 7/28/2011 12:09 PM, Chris Lewis wrote:

> I'd not use dnscache in corporate/enterprise/high reliability
> environments. Unbound is nice and hiccup-free. Bind9 is reasonable
> enough. I hear good things about PowerDNS too.

As a FYI, on a machine running qpsmtpd, handling up to 10M emails per 
day, with 4-5 DNSBL queries per email, rDNS etc., Unbound has been 
running since Feb (probably a manual restart testing unbound's init 
script, we've never had ANY issue with Unbound itself), and has consumed 
about 27 hours of CPU, and has a memory footprint of 45Mb.

Could probably up the cache size, but I don't think it would make a lot 
of difference.

rbldnsd has been up for 300 days, has consumed about the same amount of 
CPU, and the memory footprint is 900Mb.  Which, no surprise, is about 
the size of the zone file it serves.