On Wednesday, May 26, 2004, 6:19:54 AM, Hans Plooy wrote: > there is a suggestion to make local mirrors of RBLs. I have not had much luck > finding information on how to do this properly. Do you know of any links to > relevant information?
For some documents about setting up local RBL mirrors using rbldnsd, rsync, with BIND, dnscache, etc., please see the SURBL links page: http://www.surbl.org/links.html rbldnsd howto Bob Cottrell's notes on how he set up rbldnsd with rsync to serve up SURBL zones locally. Includes information about setting up port forwarding in BIND when running both types of nameservers on the same host. http://www.surbl.org/rbldnsd-howto.html rbldnsd with BIND under FreeBSD How to locally mirror RBL zone files using rbldnsd with BIND on FreeBSD. http://www.surbl.org/rbldnsd-bind-freebsd.html NJABL's tips for running rbldnsd and rsync A pretty thorough guide to setting up and running these, including port forwarding in BIND 8 and 9 so that rbldnsd can run on an existing BIND server. Applies equally well to working with SURBLs or other RBLs in general. http://njabl.org/rsync.html FAQ for rbldnsd and dnscache Rick Macdougall has written up how he set up rbldnsd to run on the same name server as dnscache from djbdns. http://www.surbl.org/dnscache-rbldnsd.html Using BIND and rsync to cache RBL zones While rbldnsd is the prefered solution for serving RBL zone files locally for many reasons, we present some steps for using BIND to do it. http://www.surbl.org/bind-rsync.html > Also, in terms of bandwidth usage, how much mail does spamassassin need to > process (and check against DNS and RBL) before mirroring RBLs locally become > economic? Obviously for our office with 6 people this would be a waste, but > I'm considering this for bigger clients. A common rule of thumb is that local mirroring becomes a good idea when inbound message volume within a given mail system is above 100,000 to 250,000 messages per day. Cheers, Jeff C. -- Jeff Chan mailto:[EMAIL PROTECTED] http://www.surbl.org/
