Terminal Services Monitoring

[Stanley Hopcroft]

Dear Sir,

On Mon, Nov 10, 2003 at 04:51:40PM -0600, George P Boutwell wrote:
> Hey,
> 
>   We have an Netsaint network monitor which has been running quite
> nicely for use for some time.  Our new network admin has asked if it's
> possible to add Terminal Services 'sessions' monitoring (ie count of
> sessions, etc) to Netsaint/Nagios.  Is anyone doing this, done this?
> 

Yes, but only inferentially (by doing something like a radwho on the 
RADIUS server; this will not be adequate if you have NCs and or thin 
clients accessing Citrix/Terminal services over a LAN without RADIUS).

However, for this sort of application there are a number of independent 
sub-tasks

1 Data acquisition - in this case, number of terminal service sessions

The usual suspects for this are

 - SNMP polling - if there is a suitable OID.

 - special Client program eg radwho, some MS rpc that may be accessible 
   with the Samba RPC tool

2 Data storage - optional but you probably want this for capacity 
management. The only sensible option is RRDtool (although folks do use 
databases). This is required if you want to do rate thresholds.

3 Threshold detection - in this case, trivial but you may want to detect 
rates or other thresholds.

Roll your own or use a Perl, language of your choice module.

4 Presentation - optional here but RRDtool gives it to you for nothing 
also.

Here you probably only want 1, but it's worth being aware that this sort 
of application recurs.



> Thanks,
> 
> George
> 

Yours sincerely.
-- 
------------------------------------------------------------------------
Stanley Hopcroft
------------------------------------------------------------------------

'...No man is an island, entire of itself; every man is a piece of the
continent, a part of the main. If a clod be washed away by the sea,
Europe is the less, as well as if a promontory were, as well as if a
manor of thy friend's or of thine own were. Any man's death diminishes
me, because I am involved in mankind; and therefore never send to know
for whom the bell tolls; it tolls for thee...'

from Meditation 17, J Donne.


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