Search Again: Re: Switching ISPs From: Simon Wright Date: Wednesday, December 18, 2002 Time: 9:34:22 am On Wednesday, December 18, 2002, at 12:14 PM, Len Conrad wrote: > >> To ease the transition I have set a number of our key systems to use >> multi-homing: they have two IP numbers - their original one and one >> from my new block of numbers. I have also done this on our name >> server. IP 199.72.165.253 and 152.14.10.253 belong to our one name >> server. I have also updated my name server > > where? in zone date and/or in delegation data in zone data > >> so that "dns1.knowledgesharing.com" has an A record pointing to >> 152.14.10.253 (it's new number). > > don't change NS zone records without also changing the zone parent's > delegation records, because they must match. > >> I have also added a brand new, never before seen, NS and A record >> for "dns.knowledgesharing.com" that also points to 152.14.10.253 in >> an effort to stimulate updates. > > is a useless effort. Your error is seen by DNS Expert > "dns.knowledgesharing.com is not listed in delegation data" and so it > useless as NS for Internet's purposes. OK. Now undone. > > Internet queries the .com parents to find your NS's (the delegation > data and glue records), it does not query your NS's for this info. > >> What I don't understand is why the registrars that we use (jumpdomain >> and netsol) know of my name server by its hostname. > > because that hostname is registered by the registrant with the > domain's registar. > >> Surely, at some point on the internet, my name server must be known >> by its IP address? > > when a registrant registers/modifies a hostname, it is actually an A > record > > ns1.domain.com A ip.ad.re.ss > > you must not change this ip in the zone data without first changing it > with your registrar. I understand this but cannot find the right place at Verisign to actually change the IP address. I have an Account Manager login for this domain but the "Name Servers for This Domain" section (accessed via their "Edit Contacts/Manage DNS" service) is asking for the hostname of my name server. Thanks for your help. Simon

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