Russel, There are definitely a few things you should watch for. Mostly just things to think about, not necessarily show stoppers.. How do you prevent some guy in North Dakota from getting a webserver in New Zealand? When a site goes down, you want it out of the loop ASAP. Check every minute or two or whatever and be sure to set the cache expiration on the zone to be very very low. Otherwise, one mirror going down can block a whole ISP for 20 minutes or whatever until the cache expires. How good is DJBDNS's round robbining? Is it good enogh to be effectively random? You may want to consider weighting some servers over others. This lets little guys with fract t's help without getting pounded by 1/n% of the total load, while big guys with fiber circuits get off easy :) We've done similar things before and ran into some issues. Of course at the time the design decision was made, BIND was the only option (and some other asundry scummy name servers). Since, DJBDNS has come along and I can't say I know what particular pitfalls you will encounter specific to its design. I can say BIND ended up being totally inadequate, but at the same time we had a little more demanding requirements. It definitely is a worthwhile idea, I certainly am the poster child of forgetting the mirrors. Good luck! Regards, Cristopher Daniluk President & CEO email: [EMAIL PROTECTED] direct: 330/530-2373 Digital Services Network, Inc Unleashing Your Potential voice: 800/845-4822 web: http://www.dsnet.net/ -----Original Message----- From: Russell Nelson [mailto:[EMAIL PROTECTED]] Sent: Friday, August 31, 2001 11:05 PM To: [EMAIL PROTECTED]; [EMAIL PROTECTED] Subject: Should I go for it? Okay, I've been planning on making this switch for over a year now. Should I go for it now? Here's what I'm planning to do: 1) I have a script which checks a mirror to see if it's up to date. 2) I can use this script to check a mirror to see if it correctly responds to http://qmail.org/ . 3) I can generate a list of IP addresses that respond to qmail.org. 4) I can trivially convert that into a bunch of +www.qmail.org::$ipaddr lines for primary.qmail.org, so that the IP address of qmail.org is whatever server you happen to get. My question is: Does anyone have any experience dynamically generating records in this manner? Is there anything I should watch out for? Should I go for it? -- -russ nelson <[EMAIL PROTECTED]> http://russnelson.com Crynwr sells support for free software | PGPok | The most basic moral/ethical 521 Pleasant Valley Rd. | +1 315 268 1925 voice | question is who gets to use Potsdam, NY 13676-3213 | +1 315 268 9201 FAX | force, and when -- ESR
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