have DNS show two IP's for one server

[Mark Andrews]

> I see two addresses:
> 
> $dig www.mytwinn.com any
> 
> ; <<>> DiG 9.3.2 <<>> www.mytwinn.com any
> ;; global options:  printcmd
> ;; Got answer:
> ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 12091
> ;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 2, ADDITIONAL: 0
> 
> ;; QUESTION SECTION:
> ;www.mytwinn.com.               IN      ANY
> 
> ;; ANSWER SECTION:
> www.mytwinn.com.        900     IN      A       64.78.154.27
> www.mytwinn.com.        900     IN      A       64.78.154.28
> 
> ;; AUTHORITY SECTION:
> mytwinn.com.            900     IN      NS      cons1.kbkids.com.
> mytwinn.com.            900     IN      NS      cons2.kbkids.com.
> 
> ;; Query time: 222 msec
> ;; SERVER: 192.168.14.254#53(192.168.14.254)
> ;; WHEN: Thu Oct 26 00:45:20 2006
> ;; MSG SIZE  rcvd: 112

	But if you ask for A records you get 1 record w/ a 60 second TTL.
	It looks like there is a load balancer there which forwards non
	A queries through to the BIND backend.
	
> Mike Ciccone wrote:
> > Content-Type: text/plain; charset="US-ASCII"
> > I'm sorry the abc123.com... wasn't the actual server.  The actual server 
> > is www.mytwinn.com
> > Internally I get the following:
> >
> > nslookup www.mytwinn.com
> > Server:         127.0.0.1
> > Address:        127.0.0.1#53
> >
> > Name:   www.mytwinn.com
> > Address: 64.78.154.27
> > Name:   www.mytwinn.com
> > Address: 64.78.154.28
> >
> > If I run the nslookup from an outside source I only get one address 
> > (either one but only one)
> >
> > For example:
> >
> >
> >
> >
> >
> >
> > Stephane Bortzmeyer <bortzmeyer at nic.fr> 
> > 10/25/2006 02:32 PM
> >
> > To
> > cagspy <mciccone at etoys.com>
> > cc
> > comp-protocols-dns-bind at isc.org
> > Subject
> > Re: have DNS show two IP's for one server
> >
> >
> >
> >
> >
> >
> > On Wed, Oct 25, 2006 at 12:43:19PM -0700,
> >  cagspy <mciccone at etoys.com> wrote 
> >  a message of 12 lines which said:
> >
> >   
> >> When I run nslookup or dig from my dns server for my server
> >> abc123.com.  I get both external IP's for that server.  When I go
> >> out to the internet and do a lookup.  I only get one IP
> >>     
> >
> > I indeed see one IP address:
> >
> > % dig A abc123.com.
> >
> > ; <<>> DiG 9.2.4 <<>> A abc123.com.
> > ;; global options:  printcmd
> > ;; Got answer:
> > ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 18465
> > ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 2
> >
> > ;; QUESTION SECTION:
> > ;abc123.com.                    IN      A
> >
> > ;; ANSWER SECTION:
> > abc123.com.             86375   IN      A       71.18.51.167
> >
> > ;; AUTHORITY SECTION:
> > abc123.com.             86375   IN      NS      ns5.ixwebhosting.com.
> > abc123.com.             86375   IN      NS      ns6.ixwebhosting.com.
> >
> > ;; ADDITIONAL SECTION:
> > ns5.ixwebhosting.com.   172667  IN      A       72.41.223.250
> > ns6.ixwebhosting.com.   172667  IN      A       72.41.191.250
> >
> > ;; Query time: 1 msec
> > ;; SERVER: 127.0.0.1#53(127.0.0.1)
> > ;; WHEN: Wed Oct 25 22:32:00 2006
> > ;; MSG SIZE  rcvd: 125
> >
> >   
> >> (it does alternate). 
> >>     
> >
> > Can you post the actual results you got, both internally and on the
> > remote machine? Because your description does not seem to be complete.
> >
> >
> >
> >
> >
> >
> >   
> 
> -- 
> Best regards
> 
> Sten Carlsen
> 
> No improvements come from shouting:
> 
>        "MALE BOVINE MANURE!!!" 
> 
> 
-- 
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: Mark_Andrews at isc.org