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Multiple Locations, One Exchange server

By aphatmouse ·
I have a situation with a company that has offices in three states where No one seems to be able to properly log on from anywhere except the main office. They have a main branch in NH, and a satalite each in ME, and CT. They are all connected to NH via T-1 lines, with NH having a PDC/Exchange server and ME/CT each having BDC's. Each location uses a different IP adressing scheme, so ME sees only ME, NH sees only NH etc. Every machine, regardless of location, looks to the one Exchange server in NH for email. It seems to me, that with this setup things have never been quite right. I have never been able to make any changes to users, servers etc. (even though I can see them) from any of the BDC's and lately no one from CT/ME can log on- they get a no domain controler is availble to validate you type message. I can ping each state ok, so I know that all the routers are up etc. So here is my question....is this whole scheme set up wrong...if all three states are going to be on one domain, shouldn't they all be using the same IP adressing scheme, DNS, WINS etc. with the exception of the Gateway address? or am I better off dividing each state into a seperate domain? If I set up trust relationships between the domains, I should still be able to have each state log into the one Exchange server, right? Even if I do this though, am I better off having all domains on the same IP Adressing scheme?

Thanks!

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What is doable.

by jon In reply to Multiple Locations, One E ...

In our setup we have three locations, two of which share an Exchange server. We used to have a similar problem to yours but we had a workaround by not logging into a PDC and adding the IP address information into the hosts file in the C:\WINDOWS directory. This worked but of course was slow and most of the users were complaining. Now regardless of the fact that any Exchange client is going to be slow when using a 128 Kbit Frame Relay connection shared between 25 users and also for internet, the speed was rediculous. From then we proceded to install a PDC at the smaller location and set up a trust relationship with the Exchange server. Another tip, install Exchange on a machine that isn't your PDC. To this extent there isn't double the traffic that isn't routable to a seperate machine. Also make sure that WINS is configured properly on either a BDC at your Central Location or preferrably when you get PDCs at the separate locations. After we configured all of this then we have regained some of our speed from the days with fewer users, but all we can really do now is upgrade the connection we have between our locations.

Let me know if this helps.

jschneider@sclhsc.org

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What is doable.

by jon In reply to Multiple Locations, One E ...

In our setup we have three locations, two of which share an Exchange server. We used to have a similar problem to yours but we had a workaround by not logging into a PDC and adding the IP address information into the hosts file in the C:\WINDOWS directory. This worked but of course was slow and most of the users were complaining. Now regardless of the fact that any Exchange client is going to be slow when using a 128 Kbit Frame Relay connection shared between 25 users and also for internet, the speed was rediculous. From then we proceded to install a PDC at the smaller location and set up a trust relationship with the Exchange server. Another tip, install Exchange on a machine that isn't your PDC. To this extent there isn't double the traffic that isn't routable to a seperate machine. Also make sure that WINS is configured properly on either a BDC at your Central Location or preferrably when you get PDCs at the separate locations. After we configured all of this then we have regained some of our speed from the days with fewer users, but all we can really do now is upgrade the connection we have between our locations.

Let me know if this helps.

jschneider@sclhsc.org

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