Maybe the Linux Open Router project could be helpfull. It is in a very early stage but AFAIK it aims at similar tasks. http://www.open-router.org/about.html
Cheers, Marcel On 17 Jun 2001, at 14:50, :yegon wrote: > we have several servers colocated with several ISP's > i am trying to sort out some configuration that would ensure > good uptime for customers > > i want to place the html documents of every customer on two > separate servers connected to separate ISP's the dns servers > will point to one server and the second one will be just a > backup, in case the main server goes down we just change the > DNS and point the affected domains to the backup server. > when the main server is back up the dns changes back to > normal > > and now my questions: > 1. what should the times in zone files be set to to enable > the dns change to be propagated very quickly, say 5 minutes > max. > is it possible/wise to use TTL=0 > > 2. if a domain has 2 name servers set during registration, > are both of these servers used for lookups? Or is it so that > just the primary is querried if it works, and the secondary > is querried only if the primary is not responding? > > 3. is this whole idea worth consideration anyway or should I > forget it? > > > thanks for answers > > Martin Dragun -- __ .´ `. : :' ! Enjoy `. `´ Debian/GNU Linux `-