Search Again: Re: Changing ISP, updating DNS From: Men & Mice Support Date: Friday, January 14, 2000 Time: 10:13:00 am At 9:37 AM +0000 1/14/2000, Mark Palmer, Pageworks wrote: >I'm changing ISP shortly. Can you point me at any information on how >best to update my DNS to ensure the minimum loss of service to >clients. Any tips or tricks. > >Most doamins are .co.uk, with a couple of .com. > >It did occur to me that I could give the web, mail and DNS servers >each an additional IP number (using Apples IP Multi-homing) from my >new range allocated to me. Thus during the period that the domain >name system is updating itself a domain name that resolves to >100.100.100.100 or the new IP 200.200.200.200 would find a host. > >Would this work or is it a daft idea. > >Oh BTW, I will still have the old leased line and its router still >in place when the new stuff is up and running. QuickDNS Pro won't respond on any address besides the one configured in TCP/IP. So you'd have to set up one additional DNS server for each one you currently have, on the old addresses. (We won't mind a temporary arrangement like that - no need to buy additional copies just for this.) Alternatively, if the router on your old lease line supports in-bound NAT, you could change all your addresses, then enable that feature to map incoming requests to the correct servers, using the original destination IP to determine the new destination IP. If your router doesn't support this, you could probably set it up on a spare machine using IPNetRouter from Sustainable Softworks <http://www.sustworks.com/>. You might even be able to run IPNR on one of your servers without disrupting its other tasks (try it before depending on that). ____________________________________________________________________ Chris Buxton cbuxton@menandmice.com Men & Mice http://www.menandmice.com Makers of: QuickDNS Pro

Messages In This Thread: Changing ISP, updating DNS by Mark Palmer, Pageworks on Jan 14, 2000 at 9:37:00 am Re: Changing ISP, updating DNS by Men & Mice Support on Jan 14, 2000 at 10:13:00 am Re: Changing ISP, updating DNS by Mark Palmer, Pageworks on Jan 14, 2000 at 10:55:00 am Re: Changing ISP, updating DNS by Men & Mice Support on Jan 15, 2000 at 12:53:00 am Re: Changing ISP, updating DNS by Global Homes Webmaster on Jan 15, 2000 at 1:24:00 am Re: Changing ISP, updating DNS by Men & Mice Support on Jan 15, 2000 at 2:05:00 am Re: Changing ISP, updating DNS by Mark Palmer, Pageworks on Jan 15, 2000 at 1:07:00 pm Re: Changing ISP, updating DNS by Mark Palmer, Pageworks on Jan 16, 2000 at 3:57:00 pm Re: Changing ISP, updating DNS by Men & Mice Support on Jan 17, 2000 at 2:40:00 am Re: Changing ISP, updating DNS by Mark Palmer, Pageworks on Jan 17, 2000 at 9:17:00 am Re: Changing ISP, updating DNS by Men & Mice Support on Jan 17, 2000 at 9:49:00 am Re: Changing ISP, updating DNS by Jesse Proudman on Jan 17, 2000 at 9:57:00 am Re: Changing ISP, updating DNS by Men & Mice Support on Jan 17, 2000 at 10:05:00 am Re: Changing ISP, updating DNS by Mark Palmer, Pageworks on Jan 17, 2000 at 11:23:00 am Re: Changing ISP, updating DNS by Men & Mice Support on Jan 18, 2000 at 1:49:00 am Re: Changing ISP, updating DNS by Mark Palmer, Pageworks on Jan 18, 2000 at 9:17:00 am Re: Changing ISP, updating DNS by Asle Benoni on Feb 2, 2000 at 10:20:00 pm Re: Changing ISP, updating DNS by Aaron Lynch on Feb 3, 2000 at 3:36:00 am Re: Changing ISP, updating DNS by Men & Mice Support on Feb 3, 2000 at 11:21:00 am Re: Changing ISP, updating DNS by clyde on Mar 10, 2000 at 4:01:00 am Re: Changing ISP, updating DNS by Men & Mice Support on Mar 10, 2000 at 7:01:00 am Re: Changing ISP, updating DNS by clyde on Mar 12, 2000 at 3:29:00 am Re: Changing ISP, updating DNS by Bill Wadsworth on Mar 12, 2000 at 5:23:00 am Re: Changing ISP, updating DNS by clyde on Mar 12, 2000 at 6:33:00 am