bendeichp Absent Member.
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SLP Clients show wrong Names for IP's

Hi Forum,

we want to move our netware service agent to oes linux.
While gathering all necessary data I noticed some odd behaviour:
On Windows 7 clients the command "slpinfo /a" shows all knows servers and their IP's in a simple table.
Unfortunately the Names don't match the correct IP's. For example the ip address of an netware cluster node is shown with the name of a oes linux groupwise server. Also this mappings change from time to time.
The Novell documentation says to insert the short hostname into the /etc/hosts of affected oes linux server. But that is already done and this file was not changed since installation.

I don't know if this is related, but on windows login sometimes the message "server or tree was not found" pops up.Normally on the next boot the message wont appear and login works as usual.

Any input is appreciated, thx!

Cheers,
Pascal

"Have you tried turn it off and on again?"
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Anonymous_User Absent Member.
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Re: SLP Clients show wrong Names for IP's

bendeichp,

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Knowledge Partner

Re: SLP Clients show wrong Names for IP's

In article <bendeichp.7a5mrz@no-mx.forums.microfocus.com>, Bendeichp
wrote:
> Unfortunately the Names don't match the correct IP's. For example the ip
> address of an netware cluster node is shown with the name of a oes linux
> groupwise server.


Very likely you have DNS PTR records pointing to the wrong name. I see
the same on one client and it points to things I have to fix in DNS there,
that there are two PTR records for one IP and one of them shouldn't be
there.

To test, use http://www.nirsoft.net/utils/dns_records_viewer.html
point it to a prime internal DNS server and do a PTR lookup on those IP
addresses.

Beyond that, it becomes more of a server issue, best under the
novell.support.open-enterprise-server.linux.networking forum.

As for the tree or server lookup occasionally failing, also a possible DNS
issue. Certainly make sure the tree and server names resolve correctly in
DNS.


Andy of
http://KonecnyConsulting.ca in Toronto
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bendeichp Absent Member.
Absent Member.

Re: SLP Clients show wrong Names for IP's

Hello Andy,

thanks for your response!
We indeed do have set a PTR record for the ip address of the SLP server. But we did not set that explicitly, more kind of implicit.
We set a name for all workstations in our LAN like host-1-1-1-1, host-1-1-1-2 and so on. Also set the corresponding PTR records.
We never set explicit a DNS record for the SLP IP. Because of the above mentioned setup the name is host-1-2-3-4 and the PTR record resolves host-1-2-3-4 to 1.2.3.4 for the SLP server.
In the Novell Client of workstations, the old Netware servers and on the OES Linux Servers we use every time the IP address, never the DSN name of the SLP server.
Is it necessary to remove the A/PTR record of the SLP server or to set something different?


Besides our SLP Server is a Netware Cluster and therefore the IP can be hosted on Node1 and also on Node2. Not sure if this information is important for you 🙂

Thanks
Pascal

"Have you tried turn it off and on again?"
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Knowledge Partner

Re: SLP Clients show wrong Names for IP's

Hi Pascal

Your welcome and glad to be of service (even if delayed, sorry. Paying
clients and wife do come first 😉

In article <bendeichp.7fjrnz@no-mx.forums.microfocus.com>, Bendeichp
wrote:
> Is it necessary to remove the A/PTR record of the SLP server or to set
> something different?


Make sure they are correct and appropriately unique. In testing your
situation I found incorrect reports and found that the "slpinfo /a" does
reverse lookups and reports those names, not actually pulled from SLP so
this is really just a cosmetic issue.
So test as per my previous message for the PTRs for each of your SLP IPs
against each of your local DNS servers. You have to use a tool that will
report multiple answers and not all DNS tools do that. Also check your
local hosts files in-case something has ended up in them.
While these DNS entries being off key is just cosmetic for SLP, fixing
them now will help prevent other issues and make other troubleshooting
more accurate.


Andy of
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dchunt Absent Member.
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Re: SLP Clients show wrong Names for IP's

Andy, good to see you are still around and working with Novell products. I used to take courses with you in Toronto.

I was reading this post and tried the nirsoft dns_records_viewer. When I point it to a DNS server for our domain, I only see a small subset of the DNS records that are in the DNS server. Is there a setting I am missing in the DNSDataView?

I don't see a way to specify a specific DNS name and then see all the PTR records for that name. Is there?

Thanks,

Dan Hunt
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Re: SLP Clients show wrong Names for IP's

In article <dchunt.7hrran@no-mx.forums.microfocus.com>, Dchunt wrote:
> Andy, good to see you are still around and working with Novell products.
> I used to take courses with you in Toronto.

Yup, still at it and having fun now under my own org. I remember you
coming up for those sessions. I miss those sessions, the on-line ones
just aren't the same. Now if you just had a picture of your self on your
LinkedIn account, I'd be sure if that is you, though the GroupWise Goddess
as a common link make me think I'm seeing you there.

> I was reading this post and tried the nirsoft dns_records_viewer. When
> I point it to a DNS server for our domain, I only see a small subset of
> the DNS records that are in the DNS server. Is there a setting I am
> missing in the DNSDataView?
>
> I don't see a way to specify a specific DNS name and then see all the
> PTR records for that name. Is there?


I didn't do anything special. I was only hitting IPs with 2 or 3
associated PTRs and this was against an OES DNS, so those could be an
factors. When results aren't what I expect, I really compare among all
the related DNS servers and have previously found that there was some sync
issues involved.


Andy of
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Knowledge Partner
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dchunt Absent Member.
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Re: SLP Clients show wrong Names for IP's

OK, updated LinkedIn and yes, Danita does know me.

As for the DNSDataView program, I must be missing something. I specify our internal domain name (which is administered by AD) and it returns only 22 records although there are many more than that. Also, even some of the static DNS records are missing, although they show up when I look in AD DNS for the same domain.

Strange,

Dan
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Knowledge Partner

Re: SLP Clients show wrong Names for IP's

In article <dchunt.7i0z8n@no-mx.forums.microfocus.com>, Dchunt wrote:
> OK, updated LinkedIn and yes, Danita does know me.

Of course she does, as Goddess, this is expected 😉
keeping those things updated can be a challenge.

> As for the DNSDataView program, I must be missing something. I specify
> our internal domain name (which is administered by AD) and it returns
> only 22 records although there are many more than that. Also, even some
> of the static DNS records are missing, although they show up when I look
> in AD DNS for the same domain.


I think you are trying to use it for more than it is intended. It is
basically just an easy GUI way of doing command line NSLookups, not a full
zone copy. If you ask it for all record types for domain.com, it will
just give you the ones for domain.com, not any for hostxyz.domain.com
unless a NS or MX happens to point to any hostabc.domain.com



Andy of
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dchunt Absent Member.
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Re: SLP Clients show wrong Names for IP's

Ah, that is what I was missing.

Thanks,

Dan
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Knowledge Partner

Re: SLP Clients show wrong Names for IP's

In article <dchunt.7ihxw0@no-mx.forums.microfocus.com>, Dchunt wrote:
> Ah, that is what I was missing.


If you want a copy of the entire zone, and it allows zone transfers (or
can be set to allow you) then a NSLOOKUP of ls domain.com
will get you that snapshot
http://superuser.com/questions/24389/is-there-a-way-to-get-the-
complete-zone-file-for-a-domain-without-contacting-its/24414



Andy of
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