If you have control over the SOA record for the names, then what you can
do is set the TTL to 1 minute. Then, wait however long the current TTL
is so that the whole world picks up the new TTL. You can then make the
change, and your downtime will be no longer than 1 minute. You can then
restore the TTL to whatever you want.
Bruce Robertson, President/CEO +1-775-348-7299
Great Basin Internet Services, Inc. company-wide fax: +1-775-348-9412
http://www.greatbasin.net my efax: +1-775-201-1553
Anna wrote:
Hi.
I have DNS and SMTP servers running on a machine connected to the
internet, and I'm changing ISPs today... so I need to change the IP of
this machine. I think my real problem is with the DNS server..
The DNS server is the repository the info of a couple domains. The DNS
servers at a (third, unrelated) ISP provides the actual authoritative
DNS service (these servers are named by the registrar) but they query my
machine for information updates. I really like this setup, but the
problems involved with changing ISPs makes me question the practicality.
My DNS server names the MX records for my domains. Which means, the
SMTP servers will have some down-time while the cached DNS records out
there get updated. This is bad, but I think unavoidable.
This whole difficulty has me thinking it would be worth the while and
cost to move these services off my little server and to some hosting
company. I do not have time to do this now, so I have to deal with this
little mess myself.
----------------------------------------------------
This has me wishing for a way to give a machine two default routes. One
would have a higher priority than the other for outgoing connections,
but incoming connections would be handled for their duration on the
device that originally accepted the connection. It seems like this
should be a possibility, but I have never heard of a setup like this.
Is it possible?
If this is not possible then I just have to bite the bullet and accept
some down-time... I think. Unless anyone of you has an idea. I'd love
to hear it. :)
Thanks,
- Anna
_______________________________________________
RLUG mailing list
[email protected]
http://lists.rlug.org/mailman/listinfo/rlug
_______________________________________________
RLUG mailing list
[email protected]
http://lists.rlug.org/mailman/listinfo/rlug
