DNS Question
Bill McGonigle
bill at bfccomputing.com
Wed Aug 17 13:14:01 EDT 2005
On Aug 17, 2005, at 12:38, Cole Tuininga wrote:
> Secondly, (in retrospect) it doesn't really make sense that a
> ns1.code-energy.com could be the primary nameserver for code-energy.com
> since it's required in order to resolve itself!
>
> What am I misunderstanding here? Is there somewhere else that's doing
> a
> mapping for ns[12].code-energy.com to IPs?
There should be host records with your registrar for your name servers.
e.g.:
>whois ns1.bfccomputing.com -h whois.internic.net
[Querying whois.internic.net]
[Redirected to whois.easydns.com]
[Querying whois.easydns.com]
[whois.easydns.com]
Server Name: NS1.BFCCOMPUTING.COM
IP Address: 217.160.248.65
Registrar: EASYDNS TECHNOLOGIES, INC.
Whois Server: whois.easydns.com
Referral URL: http://www.easydns.com
But I don't see any for your host:
>whois ns1.code-energy.com -h whois.internic.net
[Querying whois.internic.net]
[Redirected to whois.godaddy.com]
[Querying whois.godaddy.com]
[whois.godaddy.com]
No match for "ns1.code-energy.com" in the registrar database.
an aside: OMFG, you're not using GoDaddy for your business account, are
you? There are plenty of competent Registrars. Someone here works for
DynDNS which I've been using for my recent registrations. If you can
get someone at GoDaddy on the phone who knows how to deal with host
records in a reasonable amount of time without battling four levels of
script-kiddies I'll retract this comment.
Also, you can't lie about anything and expect DNS to work right. No
CNAMES, forward and reverse DNS must match. If the reverse has an
inconvenient name and you can't get that changed, suck it up and have
your nameservers listed as whatever they happen to be.
In addition, there are lots of broken DNS servers and caches out there
(some buggy, some intentional) that don't give a whit about your TTL,
they've got it set for 2 weeks, and that's that.
The best way to do this, typically, is to add the new servers as NS3
and NS4, wait a couple weeks, remove NS1 and NS2 (remember, both in
your whois records and in your zone file), wait a couple weeks, add new
entries for NS1 and NS2 with the IP's of NS3 and NS4, wait a couple
weeks, then remove NS3 and NS4 for good. It sucks, but it works.
-Bill
-----
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