[suse-security] Problem with Windows Network Neighborhood and Linux

["remote" <remote@xxxxxxxxxxxxxxxxxxxxxxx>]

Hi !

I run a small heterogeneous network of Linux boxes and Windows computer with
a SuSE 8 Pro box which serves as central gateway, DNS and mail server and
firewall. For a few days now,  I have noticed that my users had trouble
using the Windows Network Neighborhood. It would not show which other
machines were available. The situation deteriorated until now, I get an
error message saying that I cannot access the Neighborhood at all. The funny
thing is, if I use Windows to search for a specific computer, it will find
it and I can access the computer´s shared directories.
I used my Linux gateway to check the other machines, they are physically
available, they can be pinged and the DNS name resolution works fine. My
other Linux boxes don´t seem to have any problems at all. Also, neither the
Windows machines nor the Linux boxes have trouble with other network
applications like mail or internet access.
There have been no major hardware or configuration changes for several weeks
now, thus I am sure this is no hardware problem but instead network-related.

Any suggestions what my problem might be and how to solve it ?

Thanks,

Jörg


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