On Mon, Nov 19, 2007 at 11:48:15AM +0000, Mark Rogers wrote:
configuration. Not least because as a tertiary server it won't normally matter if I get it wrong :-)
Yes, it will matter. With DNS the secondary doesn't mean "if you can't get to the first use this instead" it is just bad terminology as you (generally) have a "master" where all the changes are made and the "slaves" grab this information (usually using AXFR queries) to transfer the changes made to the zones to themselves. With DNS there are a few factors (depending on the dns software involved) that depend on which dns server will get spoken to.
You could run another server for the domain that doesn't pull the zone from the "master" but this could lead to changes getting out of sync and as you can never tell which server the clients are going to speak to this will eventually cause problems. Your other option is to ask 123 if you can setup another server that you control and see if they will let you sync the dns from their machines to it.
Adam