> I've been wondering about this for some time... Does the order really affect > the number of lookups? > > I'd thought that the RBL lookups went out pretty much all at once. It turns > out that they don't. I looked back through some old logs where I had stepped > up logging and found this...
<snip> > looks like about a 4-second delay before looking up the next listed RBLs... Which is why I've created a master internal blacklist that's an amalgamation of most of the blackholes.us country codes plus additional IP ranges from other Eastern European and South American countries (for example, cable modem blocks from Romania and Peru) so that one query nabs about 60% of my blacklisted traffic. (Today, for instance, it blocked 5029; cbl.abuseat.org blocked 3224-- thanks, Bill Cole, for introducing that list to us; sbl.spamhaus.org hit 3002; dialups.visi.com hit 121; and opm.blitzed.org hit 14.) If you run your own DNS I highly recommend it for country codes; I certainly wouldn't use it for any other blacklists, but IP ranges tend to stay local to their assigned countries. -- Dave Pooser Manager of Information Services Alford Media http://www.alfordmedia.com ############################################################# This message is sent to you because you are subscribed to the mailing list <[EMAIL PROTECTED]>. To unsubscribe, E-mail to: <[EMAIL PROTECTED]> To switch to the DIGEST mode, E-mail to <[EMAIL PROTECTED]> To switch to the INDEX mode, E-mail to <[EMAIL PROTECTED]> Send administrative queries to <[EMAIL PROTECTED]>
