Hellojsluzewski @
dna .
com wrote:
>
> On SUNOS machines DNS won't work without NIS. There is a way to make DNS
> independent of NIS, but it is not an offically supported solution by Sun.
> On Solaris all one has to do, is to edit /etc/nsswitch.conf
> I am know sure what has to be done on HP machines.
> I hope it will somewhat help.
>
> PS. In the future, give your email address with your posting to allow
> direct responses.
>
> jsluzewski @
dna .
com
> ----------
> From: firewalls-owner
> To: jsluzewski; firewalls
> Subject: nslookup via the firewall
> Date: Friday, December 13, 1996 8:00AM
>
> Return-path: <firewalls-owner @
GreatCircle .
COM>
> Message-Id: <199612131557 .
HAA29487 @
dfw-ix4 .
ix .
netcom .
com>
> From: "Data Systems Bureau" <lasdsdn @
ix .
netcom .
com>
> To: "Firewall Group" <firewalls @
GreatCircle .
COM>
> Subject: nslookup via the firewall
> Date: Fri, 13 Dec 1996 08:00:37 -0800
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COM
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> ----------------------------------------------------------------------------
> --
> Hi gang,
>
> I'm stuck on nslookup and I could use a quick clue. Our DNS server is =
> outside the firewall. I'm using a HP UX based firewall and I've added =
> the /etc/resolv.conf file to it so that I can run nslookup. It works =
> just fine, but keep in mind this is the firewall machine and therefore =
> the execution of the command does not have to go through the firewall's =
> own filters.
>
> When I try nslookup on other Unix machines set up behind the firewall =
> the command times out. I get a message telling me that the nameserver =
> is not found. I've tried this from HP UX, SUN OS, and NeXTstep and all =
> have the same problem.
>
> I have also setup several PC clients behind the firewall using both =
> Windows 3.1 w/ Reflection TCP/IP stacks and Windows 95. In both of =
> these situations, my web browser works fine and can resolve all web =
> addresses. This tells me that the PC clients can reach the DNS server =
> without a problem (both PC's and Unix machines have the same DNS domain =
> name defined and the same DNS server IP address).
>
> Hence, the question. Why can't my Unix machines reach the DNS server =
> but my PC's can.
>
> On the firewall, I'm allowing both ports 53/UDP and 53/TCP to go out to =
> the DNS server, and I'm also allowing these same ports to come back into =
> my internal network (even though I realize that this second filter is =
> not needed).
>
> All I can think of is that nslookup does not use port 53.
>
> Any clues.
>
> Thanks,
>
> Fabian E.
Hello,
Try setting your system up to point to an outside DNS server via the
/etc/hosts
-------start---------
nameserver ns.xxxxx.xxx
--------end----------
Let us know the results..
Donald R. Guillot
Follow-Ups:
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