HELP: Thin Clients freeze after 30 minutes.

[Ralf <rgx@gmx.de>]

Dear List,

on day two of our evaluation phase, the pro of centralized 
administrations shows its shadows: Aparently there is some problem with 
the terminal server (TS), anyway about 30 minutes after rebooting the 
TS, the thin clients' (TC) desktop freezes.

Configuration: 

Tjener (LDAP) ==== Terminal Server ===== 100 MBit Switch (new) === TCs

The Terminal Server has pr47 and Klaus' Script that prevents users from 
logging in at two terminals simultaneously (cron job?).
The freeze is not suddenly, but increases more and more: First, at one 
TC the desktop is not redrawn at once, then everything but the mouse 
freezes, reboot of TCs leads to "PXE Time Out - No Boot Disk".

When I check the TS (I have to go to the basement), there is no 
processes with high CPU usage (top), and no visible malfunction. 
However there are some dead links in /opt/lstp/ IIRC pointing to files 
like /tmp/allowed-hosts  (something like that). I doubt however that 
this is the point, as some hour later the TC did boot again (4 hours 
later, they didn't any more, alas).

df shows no tight partitions (nor tjener nor TS).

As I have a presentation of the whole ensemble to my collegues on 
thursday, I trust on your vivid replies :)

Thanks in advance
Regards
Ralf