Migrating SIDHistory without Source AD RPC connectivity

I recently had a very interesting project where Source company was splitting off one of its branches to join Target company, and as such, what we could do with the Source AD was very limited. There was no direct Source AD RPC connectivity, and we could only have AD attributes export of to-be-migrated objects via csv text files. QMM was out of the question (yet, we still managed to find a good use for it!)

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Exchange Federated Cross-org Calendar Sharing in my own words

Anyone who’s been in AD / Email migration business long enough, can appreciate Exchange cross-org (or on-prem to Online) Federated Calendar sharing feature. Old days of setting up plentitude of Calendar synchronization jobs are going away, and instead of delayed and sometimes not syncing properly Calendar updates we can now fetch live F/B directly from the other side org.

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Intra-forest AD migration: One more pre-requisite to consider

After doing intra-forest migrations for many years, I recently discovered some new pre-requisite which I would like to share in this article. It all started with the following computer migration error: “Error 0x000021C7. The operation failed because SPN value provided for addition/modification is not unique forest-wide.” User migrations are failing as well referencing duplicate UPNs. This is where I started digging.

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Handling “Remote Registry” service as part of QMM RUM requirement

QMM RUM always had a requirement for the “Remote Registry” service to be running on migrated computers but starting with Windows 8 / Server 2012 Microsoft has made it a bit more challenging for the migration engineers to handle. Even if you set it to “Automatic” and start, it will eventually be stopped by OS and Startup Type will reflect Automatic (Trigger Start) so QMM RUM will keep complaining about it.

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