Search Again: Re: Switching ISPs From: Len Conrad Date: Wednesday, December 18, 2002 Time: 3:27:14 pm >1) About a week before the switch, I went Network Solutions and changed >the _secondary_ DNS on all our domain records to the DNS of our new ISP. I don't think this buys you enough, if anything, to justify the double work of visiting verisign twice to change each glue record in sequence rather than simultaneously. The old ip for the backup dns will still be cached 2days. >2) At the same time I set the TTLs on all our domains on our DNS to an >hour. Our new ISP did the same on the secondary DNS for all our domains. do this in all cases. >3) The day of the switch I went to Network Solutions and changed the IP in >the hostname record for our primary DNS, the one we run in-house, to the >new IP from our new provider. > >4) A few days later, I changed all the TTLs back to their default. I can't see any significant advantage in running short TTLs past the day of the switch. >Since keeping the old DNS up at the old IP was not an option for us, this >seemed to work fairly well. We had no reports of any of our servers being >inacessible for any period of time. Is this a good way to make a switch? >Given the circumstances, could I have done better? Thanks, If it worked for you, it worked for you. :)) Len

Messages In This Thread: Switching ISPs by Simon Wright on Dec 18, 2002 at 7:40:32 am Re: Switching ISPs by Brian Blood on Dec 18, 2002 at 8:52:43 am Re: Switching ISPs by Brian Blood on Dec 18, 2002 at 8:55:33 am Re: Switching ISPs by Len Conrad on Dec 18, 2002 at 9:17:26 am Re: Switching ISPs by Simon Wright on Dec 18, 2002 at 9:23:45 am Re: Switching ISPs by Simon Wright on Dec 18, 2002 at 9:34:22 am Re: Switching ISPs by Simon Wright on Dec 18, 2002 at 9:47:51 am Re: Switching ISPs by Len Conrad on Dec 18, 2002 at 9:48:16 am Re: Switching ISPs by Len Conrad on Dec 18, 2002 at 10:02:52 am Re: Switching ISPs by Simon Wright on Dec 18, 2002 at 10:12:21 am Re: Switching ISPs by Kenneth Kirksey on Dec 18, 2002 at 3:13:03 pm Re: Switching ISPs by Len Conrad on Dec 18, 2002 at 3:27:14 pm