A question about bind?

Eivind Olsen eivind.olsen at ttyl.com
Wed Nov 28 06:20:34 UTC 2001


--On 27. november 2001 22:51 -0500 Joseph Watson <jtwatson at datakota.com> 
wrote:
> But still  I have a problem that I can not query the dns server
> directly???
>
> This is what I get:
>
> [jtwatson at Smokey jtwatson]$ host -a www.datakota.com 216.16.67.246
> Trying "www.datakota.com"
> ;; connection timed out; no servers could be reached
> [jtwatson at Smokey jtwatson]$
>
> Am I using the host util wrong????  Does anyone have any idea what is
> wrong  here?

Did you do the host-query from the server itself or from another 
server/workstation? The same host-query works when I test it here.
Is 216.16.67.246 a real local IP-address of the nameserver, or does that 
IP-address in reality belong to some router/firewall that is doing 
NAT/port-forwarding? If the IP-address in reality belongs to the 
external/WAN interface of a router, you might have problems accessing it on 
the external IP-address from the inside.

Did this make any sense?

> I can make a dns change, and because I have the cache time settings set
> real low,  I see the changes in a few minutes!  Because the changes come
> through, I know that the dns server is working when queried by another
> dns  server, but I can not query my dns server directly????

Yes, that was another thing I was going to comment on. Having a TTL of 60 
seconds and a refresh of 120 seconds seems a bit excessive. ;)

-- 
Talk To You Later
Eivind Olsen




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