Re: BIND

Ivo Simicevic (ivo@ultra.hr)
Thu, 22 Apr 1999 10:25:18 +0200


> Hi all,
>
> I'm trying to add a new external host to our DNS (BIND 4.9.5-P1).
> I added the entry to db.ourdomain that looks like this:
> newhost IN A xxx.xxx.xxx.xxx
> and the entry to db.our.external.net that looks like this:
> xxx IN PTR newhost.ourdomain.com.
> and restarted it.
>
> An nslookup to both the new ip and the new hostname work from
> our network, and a nslookup to the new name from outside our network
> works fine, but an nslookup to the new ip from outside returns non-existent
> host/domain. What else do I have to change to get the outside to be able to
> do gethostbyaddress correctly? I've looked in the O'Reilly "DNS and BIND"
> book but the only thing it mentions for this problem is that the PTR isn't
> set up
> right, but it is setup just like the rest of the hosts, all of which work
> fine. Anyone
> have any ideas?
>
> Thanks,
> John
>

If host you are trying to add is outside your IP space then you can't
have reverse lookup (IP->name) without making upper level ISP responsible
for that outsider IP space making a pointer to your DNS.

Ivo.

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