RFC. Checking MS Domains (simulating a 9x client logon to check health of DCs/File servers etc)

[Tom DE BLENDE]

Dear Stanley,

I for one am interested. It is nice to see that even FreeBSD fans seem
to be confident in the reliability of Microsoft Windows' domain
implementation and its stability ;-) However, I think it is useful to
monitor its operation nonetheless. What I use now is the check_wins
plugin to see whether the domain is available.

The code your are describing does a lot more than that, as it actually
tries to use the domain functionality. I see this as a great
improvement, and it goes without saying that I am interested in
working on this plugin together. One thing I would like to see added
is support for VBS functions in the logon script. In the old days we
used 'net use' statements as well, but in the new version of the logon
script, we use mainly VBS functions like
'objWshNetwork.MapNetworkDrive'. If you want to have these covered as
well, I can provide you with all the info you require. It should not
be a big change. 

Kind regards,
Tom



Stanley Hopcroft wrote:
> 
> Dear Ladies and Gentlemen,
> 
> I am writing to ask how, if it is done at all, do people check the
> health of MS/Samba Domains ?
> 
> Why bother ?
> 
> Good point. The MS Domain and file servers are highly available. There
> is a good case for not monitoring since they seldom fail.
> 
> However, if there is any interest in doing so I have some code that
> should reveals faults in a Domain/File server by simulating a 9x
> workstations actions in logging onto a domain ie
> 
> - broadcast /MAILSLOT/NET/NETLOGON to get list of DCs
> 
> - do a session setup with IPC$s share on one of them, calling
> NetWkStaLogon to get the name of the Lanman logon script
> 
> - download the Lanman logon script from the NETLOGON share
> 
> - randomly select a share from one of the 'NET USE' statements in the
> logon script
> 
> - try a session setup with that share
> 
> If all this works, I am fairly confident the Domain is Ok (though some
> of the member servers could be cactus).
> 
> The code is/or will be in the form of a Perl XS that wraps calls to the
> SMB function in libsmbclient (supplied with Samba 2.2.x, or the
> equivalent libraries in Samba-TNG. You must have these libraries
> installed - they are not part of the default Samba head install).
> 
> The code is actually good because so little of it comes from me !
> 
> Thank you,
> 
> 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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