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linuxtrojan

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Domain Controller replication

Hello,

I have 2 buildings and 2 domain controllers wich replicates with the primary domain controller in Germany like in the visio drawing.

My question is, how the users will be affected if the connection between primary domain conttroler DC1  and the DC2 will be stoped for 2 days ?! The users will be allowed to connect to domain and to authentificate to the exchange server and the file servers ?!

Thanks.
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TheCapedPlodder
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linuxtrojan

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We need to make some modification to our WAN and the network will be down for 2 days between dc1 and dc2. But yes, we will be still connected via a backup route to the domain using dc3.
So dc3+dc2 will be connected to the domain but they will not be able to see dc1....
Provided all the users and all the servers can see a DC then everything should work tickety boo.

Do consider moving the FSMO roles before the line goes down.  Whilst not essential, if you find you need the functionality of one of the roles after the line has gone down you will need to seize the role which will complicate matters when the line comes back up.

Cheers,

Plod
Unfortunately i can't move the FSMO roles, because dc1 serves as PDC other locations too....
Ok , as said you would only have problems with new users and users that have changed their password , and would move between your locations and germany.

A further question, Do you have multiple sites configured in sites and services ? or just one?
If multiple sites , then authentication will always be on the local DC. If one site, clients might want to authenticate to the german dc even although that shoudl mean you have a ineffecient AD setup
Yes we have multiple sites configured. Each location with his site and a dc in location. We have 2 dcs because we have 2 buildindgs...2km between them.
Ok so then it should give no worries,

only people moving between germany and your sites who just reset their password migth experience something. But i guess the changes for that are pretty remote :-)

Just keep the downtime to the minimum possible, and check replication afterwards by creating a user on your site, and seeing if it replicated to germany for example.

Happy transfer :-)

B
Also, consider running dcdiag from all the DC's before and after the downtime to ensure any new issues are highlighted (as well as existing issues).

Plod
I want to thank you all for your replies....I hope you don't mind if I split the points between all of you :)

I wish you a Merry Christmas and A Happy New Year...!!!