Re: Domain Controller Stops Processing All Login Requests Randomly

> http://www.faronics.com/html/deepfreeze.asp. We use it on all of our
> clients. None of our servers run it. At any rate it essentially
"freezes"
> the workstation's system state so you can give a user Admin on a box, if
you
> wanted, and they can install stuff for a day. When the machine reboots,
the
> system state is restored to the original snapshot. It is really handy in
a
> lab environment. One feature of the administrator console allows us to
> control the clients and shutdown a bunch of machines at once or turn them
> all on at once.

You are likely running into a DESIGNED FEATURE (not
a bug) due to the Deep Freeze mechanism. This is similar
to using Ghost or any Backup scheme to restore a machine
to a known state.

After a week or so, the backup image will no longer 'know'
the computer password on the domain (because one of it's
invocations will have changed it and they expire within
1-2 weeks usually.)

Now the computer cannot authenticate itself, nor due to this
it's user, on the domain. The computer account must be
"reset".

[The obsolete method is to unjoin/rejoin the computer from
the domain.]

Reset is accomplished by one of the included or support
tools: AD User/Computers right-click, NetDom, NLTest,
DSMod, ADSI script, etc.

--
Herb Martin, MCSE, MVP
Accelerated MCSE
http://www.LearnQuick.Com
[phone number on web site]

"Josh-UCDHSC" <noJCspam@xxxxxxxxxxxxx> wrote in message
news:OOyHNDjWFHA.2664@xxxxxxxxxxxxxxxxxxxxxxx
>
> "Herb Martin" <news@xxxxxxxxxxxxxx> wrote in message
> news:%23ngwOeCWFHA.4056@xxxxxxxxxxxxxxxxxxxxxxx
> >> I don't know how this is related, but this morning we booted about 30
> >> machines simultaneously that are Deep Freeze clients. After booting,
the
> >> machines, the server exhibited the same behaviour. We rebooted the
> >> server
> >> and then tried the same thing, booting a lab full of machines and it
> > stopped
> >> responding again. The wierd thing is that I was able to login to the
DC
> >> (which takes awhile when this happens) and open the dnsmgmt.msc o.k.
but
> >> still no one could login and shared folders were inaccessable.
> >
> > What's a Deep Freeze Client?
>
> Deep Freeze is made by Faronics -
> http://www.faronics.com/html/deepfreeze.asp. We use it on all of our
> clients. None of our servers run it. At any rate it essentially
"freezes"
> the workstation's system state so you can give a user Admin on a box, if
you
> wanted, and they can install stuff for a day. When the machine reboots,
the
> system state is restored to the original snapshot. It is really handy in
a
> lab environment. One feature of the administrator console allows us to
> control the clients and shutdown a bunch of machines at once or turn them
> all on at once.
>
> When we turn on a lab of 30 - 32 machines simultaneously (sends a wake on
> lan signal) the server freezes. So at least we are able to replicate the
> problem now. What is wierd is that it will also happen during the day
when
> folks are coming in and out of the lab and not turning on very many
machines
> at once.
>
> So there is a pattern and there isn't a pattern.
> >
> > Those hang warning make me concerned for the DNS dll's etc.
> > and would suggest a repair install is in order.
>
> I have two weeks to work on it in between semesters now. I have made a
full
> backup and will do a repair this week as well as Service Pack 1.
>
> >
> >
> > --
> > Herb Martin, MCSE, MVP
> > Accelerated MCSE
> > http://www.LearnQuick.Com
> > [phone number on web site]
> >
> > "Josh-UCDHSC" <noJCspam@xxxxxxxxxxxxx> wrote in message
> > news:#Ca1FS#VFHA.2692@xxxxxxxxxxxxxxxxxxxxxxx
> >>
> >> "Herb Martin" <news@xxxxxxxxxxxxxx> wrote in message
> >> news:Oudg0R0VFHA.3764@xxxxxxxxxxxxxxxxxxxxxxx
> >> > "Josh-UCDHSC" <noJCspam@xxxxxxxxxxxxx> wrote in message
> >> > news:#hZhaC0VFHA.2664@xxxxxxxxxxxxxxxxxxxxxxx
> >> >> Herb,
> >> >>
> >> >> Well, the system zombied again today. It lasted a week and then
> >> >> froze.
> >> > I'm
> >> >> going to create a backup and try the repair. I'm going to call Dell
> >> >> about
> >> >> the proper proceedure for installing SP1 for Win2k3 on the PowerEdge
> >> >> 2850.
> >> >> I've heard that it can be tricky.
> >> >
> >> > Well, "zombie"ing, whatever that means doesn't have
> >> > much to do with DNS or even AD and logon requests.
> >>
> >> What I mean is that the server stopped responding to login requests and
> >> people that had files open from thier network share lost the ability to
> >> access those files. I tried opening dnsmgmt.msc and got an Application
> >> Error Event log "Application Hang" Event ID 1002, "Hanging application
> >> mmc.exe, version 5.2.3790.0, hang module hungapp, version 0.0.0.0, hang
> >> address 0x00000000.".
> >>
> >> I don't know how this is related, but this morning we booted about 30
> >> machines simultaneously that are Deep Freeze clients. After booting,
the
> >> machines, the server exhibited the same behaviour. We rebooted the
> >> server
> >> and then tried the same thing, booting a lab full of machines and it
> > stopped
> >> responding again. The wierd thing is that I was able to login to the
DC
> >> (which takes awhile when this happens) and open the dnsmgmt.msc o.k.
but
> >> still no one could login and shared folders were inaccessable.
> >>
> >> >
> >> >> I'll keep this thread updated I guess, what do you suggest I do from
> > here
> >> > on
> >> >> out if the repair doesn't fix the problem?
> >> >
> >> > You may, but don't count on it if you don't get a response
> >> > since old threads will eventually be deleted from my
> >> > news storage -- on the other hand if it is still here, the
> >> > group turns "red" when a new message is added since I
> >> > am "watching" it.
> >> >
> >> > It would be odd if there is anything tricky about SP1
> >> > for that specific machine -- although occasionally a
> >> > BIOS update is required before loading a new version.
> >> >
> >> > --
> >> > Herb Martin, MCSE, MVP
> >> > Accelerated MCSE
> >> > http://www.LearnQuick.Com
> >> > [phone number on web site]
> >> >
> >> >>
> >> >> Josh
> >> >>
> >> >> "Herb Martin" <news@xxxxxxxxxxxxxx> wrote in message
> >> >> news:eimD%237NVFHA.1452@xxxxxxxxxxxxxxxxxxxxxxx
> >> >> > "Josh-UCDHSC" <noJCspam@xxxxxxxxxxxxx> wrote in message
> >> >> > news:u8QqlSNVFHA.3212@xxxxxxxxxxxxxxxxxxxxxxx
> >> >> >> Herb, thanks for the help. I backup the DCs and a few other
> >> >> >> servers
> >> >> >> using
> >> >> >> the grandfather-son-grandson backup scheme so not to worry on
that,
> > I
> >> >> > hope.
> >> >> >> I use Backup Exec 10 and find it really easy to use.
> >> >> >>
> >> >> >> So far the server hasn't zombied since Thursday night. I'm
> > guardedly
> >> >> >> optimistic that rebuilding the DNS fixed the problem. I will
> >> >> >> update
> >> > the
> >> >> >> thread at the end of this week.
> >> >> >
> >> >> >
> >> >> > Glad to hear that -- hope it stays that way.
> >> >> >
> >> >> > --
> >> >> > Herb Martin, MCSE, MVP
> >> >> > Accelerated MCSE
> >> >> > http://www.LearnQuick.Com
> >> >> > [phone number on web site]
> >> >> >
> >> >> >
> >> >>
> >> >>
> >> >
> >> >
> >>
> >>
> >
> >
>
>


.

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