RBL Anyone?
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RBL Anyone?
by Curtis Maurand
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Has anyone ever used PDNS to host an internal
RBL. I'd like to cut down my traffic to spamhaus before I have to
start paying them a big fee. I can harvest addresses from a mail log
and put them into a zone with an A record of 127.0.0.2.
--Curtis _______________________________________________ Pdns-users mailing list Pdns-users@... http://mailman.powerdns.com/mailman/listinfo/pdns-users |
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Re: RBL Anyone?
by Tyler Hall-3
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Yes, it works, why wouldn't it? RBLs just do DNS lookups and look for an answer.
OT -- The only problem with having your own RBL is when will you know to remove the listing? You will end up blocking people longer then they should be. I've been in spamhaus before on accident, if I emailed you during that time, I'd never be able to email you again unless you plan on flushing out the table every few days. Just think about the stuff like that. On Wed, Oct 14, 2009 at 9:06 AM, Curtis Maurand <curtis@...> wrote:
_______________________________________________ Pdns-users mailing list Pdns-users@... http://mailman.powerdns.com/mailman/listinfo/pdns-users |
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Re: RBL Anyone?
by Brendan Oakley
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I use the BIND backend for this. I've wondered what the performance
would be like on a db backend, since we have very heavily loaded incoming MTA's. I've thought about possibly porting the rbldnsd code to a PowerDNS backend, but haven't had time yet to look at it closely. Brendan _______________________________________________ Pdns-users mailing list Pdns-users@... http://mailman.powerdns.com/mailman/listinfo/pdns-users |
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Re: RBL Anyone?
by Curtis Maurand
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so I'm assuming that my zone would be named something like
rbl.mydomain.com
and then each IP address that I would block would have an ip address of 127.0.0.2? insert into records (domain_id, name, type, content) values ('<zone_id>', '192.168.35.2' , 'A', '127.0.0.2') Is this correct? Its a given that I would periodically have to purge, but I'd rather have the system check against the localhost, then zen.spamhaus.org, then others. Tyler Hall wrote: Yes, it works, why wouldn't it? RBLs just do DNS lookups and look for an answer. _______________________________________________ Pdns-users mailing list Pdns-users@... http://mailman.powerdns.com/mailman/listinfo/pdns-users |
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Re: RBL Anyone?
by Brendan Oakley
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On Wed, Oct 14, 2009 at 11:09 AM, Curtis Maurand wrote:
> so I'm assuming that my zone would be named something like rbl.mydomain.com > and then each IP address that I would block would have an ip address of > 127.0.0.2? > > insert into records (domain_id, name, type, content) values > ('<zone_id>', '192.168.35.2' , 'A', '127.0.0.2') > > Is this correct? Ordinarily you reverse the octets: '2.35.168.192'. Brendan _______________________________________________ Pdns-users mailing list Pdns-users@... http://mailman.powerdns.com/mailman/listinfo/pdns-users |
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Re: RBL Anyone?
by Patrick Domack
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('zone_id','2.35.168.192.rbl.domain.com','A','127.0.0.2')
I do this for emails, I run greylisting, and if I get >x attempts over 2 days and no emails have passed from that ip for 2weeks, they get put on the rbl. If the reverse dns for that ip changes, or a year passes, they are removed. It seems to work very well for me. Originally it was designed to keep the load off the greylisting database, and is currently running around 1.3million ip's Quoting Curtis Maurand <curtis@...>: > so I'm assuming that my zone would be named something like rbl.mydomain.com > and then each IP address that I would block would have an ip address > of 127.0.0.2? > > insert into records (domain_id, name, type, content) values > ('<zone_id>', '192.168.35.2' , 'A', '127.0.0.2') > > Is this correct? > > Its a given that I would periodically have to purge, but I'd rather > have the system check against the localhost, then zen.spamhaus.org, > then others. > > > > > Tyler Hall wrote: >> Yes, it works, why wouldn't it? RBLs just do DNS lookups and look >> for an answer. >> >> OT -- The only problem with having your own RBL is when will you >> know to remove the listing? You will end up blocking people longer >> then they should be. I've been in spamhaus before on accident, >> if I emailed you during that time, I'd never be able to email you >> again unless you plan on flushing out the table every few days. >> Just think about the stuff like that. >> >> >> >> On Wed, Oct 14, 2009 at 9:06 AM, Curtis Maurand <curtis@... >> <mailto:curtis@...>> wrote: >> >> Has anyone ever used PDNS to host an internal RBL. I'd like to >> cut down my traffic to spamhaus before I have to start paying them >> a big fee. I can harvest addresses from a mail log and put them >> into a zone with an A record of 127.0.0.2. >> >> --Curtis >> >> >> _______________________________________________ >> Pdns-users mailing list >> Pdns-users@... >> <mailto:Pdns-users@...> >> http://mailman.powerdns.com/mailman/listinfo/pdns-users >> >> > > _______________________________________________ Pdns-users mailing list Pdns-users@... http://mailman.powerdns.com/mailman/listinfo/pdns-users |
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