On Fri, Oct 13, 2006 at 10:28:06AM +0100, Tim Haynes wrote: > I've implemented an RBL monitor for work - checks to see if hosts are > listed in a blacklist, so I thought I'd contribute it back to mon - > see attached. (Work have approved its release under the GPL.) > > Usage: rbl.monitor host [...host...] > > Bugs: it would be more elegant if the list of RBL domains were a > parameter; as it is, it's obvious what to change in the script.
Thanks, I've wanted one of these for a while, can't wait to try it out! Looking over the code, I have a couple of questions - you don't seem to set server timeouts anywhere, what if a blacklist isn't responding? Sometimes DNS queries can hang for 30 seconds or more, we don't want that to bog down the monitoring script. Of course, that would probably require using Net::DNS and fine-tuning the lookups. Have you seen the blacklist checker at: http://www.dnsstuff.com/ (center column, "Spam database lookup")? I've been using that from time to time to see if any of my mail servers are in the "hall of fame". They check a whopping 271 blacklists, and we've found our servers caught every now and then by some of the more obscure lists. I hope to try out your script in the next few days. I will probably be unable to refrain from adding features to it - besides the timeout stuff mentioned above, I'd like the option to load the blacklists from an external file - no way to put 271 blacklists on the command line or into the script! -- Ed _______________________________________________ mon mailing list mon@linux.kernel.org http://linux.kernel.org/mailman/listinfo/mon
