TCP/IP name resolution

progressdll · #1 (**permalink**) 05-07-2002

We have 2 Unix boxes.

AIX 4.3 RS/6000
Linux RedHat 6.1 Intel

There is a name server running on the linux machine. This is not used on the AIX machine ( it simply uses /etc/hosts ).

Now i have rsh permission denied problems and i suspect our AIX and tcp/ip name resolution.
I was told to login from the client to the server and run "last | head" to see what hostname the server is seeing.

First case: from LINUX to AIX ( rsh from linux to AIX works fine )
/bunolleken/users/joeri> last | head
joeri pts/20 linuxnol May 07 10:48 still logged in.

Hostname is "linuxnol". I have put this in /etc/hosts.equiv. everything OK

Second case: from AIX to LINUX ( rsh gives permission denied )
( last -a | head )
joeri pts/2 Tue May 7 10:51 still logged in ibm250.nollekens.be.220.4.125.in-addr.arpa

Hostname is "ibm250.nollekens.be.220.4.125.in-addr.arpa".
Weird name. It should simply be "ibm250"

Like i said. There i NO nameserver active on the AIX. simply hosts file.
This is comming from our AIX, right? But from where?

Joeri

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