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Upgrading Exchg 5.5 server from NT>>W2K

By scannerx ·
Hello. I need to upgrade the server running Exchange 5.5 from NT 4.0 to Windows 2000. This server is also my domain's PDC. If I simply upgrade by inserting the W2K CD-ROM and install W2K on top of NT 4.0, instead of doing a fresh install of W2K, will this upgrade affect in any way the current Exchange installation, and the ability of users to access their information store/email?

Doing an upgrade would be so much simpler that a fresh install of W2K.....should I have any problems?

Any suggestions would be really appreciated.

J. Bedsole

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by timwalsh In reply to Upgrading Exchg 5.5 serve ...

Changing to Win2K should not affect your Exchange installation.

Realize that because you are upgrading your PDC to Win2K, you will be creating a Win2K Active Directory (AD) domain. Make sure you understand thoroughly all the other possible implication this may have for your network before doing the upgrade.

It's not that the upgrade to AD is difficult, you just need to make sure to follow the proper procedures for such an upgrade.

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by Hard_Yakka In reply to Upgrading Exchg 5.5 serve ...

One issue you should be aware of is that both Exchange and Active Directory use LDAP for their directories. As AD loads before Exchange, AD takes port 389 for LDAP. Microsoft say you have to change the LDAP port number on your exchange 5.5 servers (Exch2K not affected because AD is the directory) to an unused port number.

I would imagine you would need to change this on all your exchange 5.5 servers (But don't quote me on that)And on any other applications that use LDAP to communicate with exchange 5.5 (Including the ADC if you are migrating)

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