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Primary DC/DNS down, we can't access Exchange

Primary DC/DNS went down, now we can't access Exchange. Any Ideas?
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jdcreece
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jdcreece
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2 Solutions
 
mass2612Commented:
Hi,

Do you have another DC that is hosting the global catalog in the same site as the Exchange server? If so you can restart the Exchange services and this should allow Exchange to bind with the running DC/GC.
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omarfaridCommented:
Hi,

So you do not have another DC/DNS ?
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jdcreeceAuthor Commented:
There is a secondary Dns. stst1 went down, stst2 is active and running server 2000. exchange is on a box running 2003 enterprise (exchange 2003 enterprise.) Exhange worked fine until stst1 went down. stst1 had server 200o also
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jdcreeceAuthor Commented:
i'm sorry, stst2 is DC only I think
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mass2612Commented:
If you only have one DC then you need to get that running again in order to restore your Exchange services. Without a DC that is hosting the global catalog then you can forget about getting Exchange working. What's wrong with your DC? You can't dcpromo another server as there would be knowwhere for it to replicate the data from.
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dekkarCommented:
Are you able to get your PDC up?? Of course DNS you must get happening.... before anything.. you have to redirect dns... If you cant get your PDC back... you have to reinstall DNS on your other DC..

Other than this, your crashed PDC was hosting something called FSMO roles.... google this..... as there is a lot to them...
(i think these were resident in 2k server)
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jdcreeceAuthor Commented:
what are the steps, DCPROMO, then DNS...PDC is not going to be up any time soon.
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dekkarCommented:
if you already have a DC... (which i think you do) then no need to dcpromo... as its already a DC..

just install DNS......... then you have to change your network DNS settings to point to the new DNS server.... i.e exchange has to point to the new dns server, as well as your DCHP...

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jdcreeceAuthor Commented:
installed and got MMC can't open DNS
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dekkarCommented:
restart server? is the dns server started?
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jdcreeceAuthor Commented:
restarted server dns shows that it is running still get mmc error
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ormerodrutterCommented:
Reinstalling DNS alone won't fix your problem you need a Global Catalog in order for your exchange to work. Secondary DC is NOT default to be a Global Catalog (check by opening AD Sites  Services, expand the DC and right click on NTDS Settings). If your second DC is not a GC then you are in big trouble.
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jdcreeceAuthor Commented:
Ended up using system state back up to install on a new box while the old one is being "rebuilt."
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jdcreeceAuthor Commented:
ormerodrutter reitterated what mass2612 had posted and actually put the STEPS in there. Step by step instructions are crucial when there is an emergency or novice (or both.)
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