SUMMARY2: nslookup 4.1.3

From: Charles Harvey (
Date: Mon Apr 14 1997 - 12:28:08 CDT

  Sean Harvey OAO Corp
     Ridgecrest CA (619)939-2199
        Knowledge is a process of piling up facts;
           wisdom lies in their simplification.

Original posting:

> Dear friends-
> I can't do a reverse nslookup on any SunOS 4.1.3 machine. Here is what I
> get when I use the command under Solaris 2.5.1. It works:
> nmc13% nslookup
> Server:
> Address:
> Name:
> Address:
> When I try the same command on a SunOS machine, I get this. It doesn't
> return the domain name:
> nmc8:/tmp_mnt/u/harvey> nslookup
> Server:
> Address:
> Name: []
> Address:
> My question is whether I have a config problem or whether this command
> is not supported under SunOS. Thanks in advance.
> Sean

I have already posted my summary but I felt it my duty to repost since Peter Allen has sent me an nslookup file that works under 4.1.3 with no fiddling around:


returns the DNS name

If anyone would like this file I will forward it on to you.



From: (Peter M Allan)
Subject: reverse nslookup SunOS fails


When my nslookup stopped behaving I asked our
internet support people and they had upgraded
their nameservers without telling us. They
were able to point me to a new nslookup
program that works fine in the new scheme.


Also ....

From: Bob Woodward <>
Subject: Re: reverse nslookup SunOS fails
Mime-Version: 1.0
Content-Type: text/plain; charset="us-ascii"

Sounds to me like you have a DNS problem. There are three 'main' files in
DNS. One is the cache file, one is used for name to IP lookups and one is
used for IP to name lookups. On our system these files are
/var/named/db.cache, /var/named/db.filmworks, and /var/named/db.207.82.202.
 There should be an entry in the third one that has your system name in it.
 It is possible that the name in that file is "[]" instead of
a system name. Some admins might do this to help them track which IP
numbers have been assigned and which ones have not.

You're file names may be different and/or in different locations. You need
to get ahold of the 'DNS and BIND' book from O'Reilly and Associates.


It's easier to use the "host" command, which comes with the latest BIND

        % host

   Bind is at:

Karl Vogel                                

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