Hi, we've been running for the last year off of mod_perl. We currently supply dynamic DNS aliasing for over 58,000 users, and almost 100,000 hosts. This is all run on one pIII-450 without breaking a sweat. On an average day we perform over 5 updates a second. -- Chris Reinhardt [EMAIL PROTECTED] Webmaster Dynamic DNS Network Services http://www.dyndns.org/