Mailbox migration the other way round – How to migrate mailboxes from Exchange Online to Exchange 2013 OnPrem

Currently, I’m often asked to migrate mailboxes or entire IT infrastructures from local data centers into the cloud. But sometimes, you’ll have to buck the trend and do something quite different. With this blog post I’m trying to explain how you can migrate your mailboxes from Exchange Online/Office 365 into your on-premise datacenter without having a hybrid configuration in place. Continue reading “Mailbox migration the other way round – How to migrate mailboxes from Exchange Online to Exchange 2013 OnPrem”

Exchange Server and .Net Framework 4.6.1

Microsoft recently published .Net Framework 4.6.1 as an inplace upgrade to the .Net Framework versions 4, 4.5, 4.5.1, 4.5.2 and 4.6. You can obtain the package via WSUS or Windows Update – but do not install it on an Exchange server.

Continue reading “Exchange Server and .Net Framework 4.6.1”

How to secure data in Microsoft’s enterprise cloud – Part 2

Hello and welcome to part 2 of my series about security in Microsoft’s enterprise cloud. In my previous blog post you learned about how to implement Azure Multi-Factor Auth in your cloud scenario. Today I’m going to show you how to protect your files against being duplicated, altered, printed or accessed by persons who are not authorized.

Continue reading “How to secure data in Microsoft’s enterprise cloud – Part 2”

How to secure data in Microsoft’s enterprise cloud – Part 1

[…]It went up to the cloud!
And you can’t get it down from the cloud?!
Nobody understands the cloud. It’s a f*** mystery.[…]
Continue reading “How to secure data in Microsoft’s enterprise cloud – Part 1”

Issues migrating a single tier enterprise CA or Why a CA should not be installed on a DC

I was recently asked to troubleshoot a crashed Windows Server 2003 Domain Controller that was also acting as single tier enterprise CA. Unfortunately, the crashed server’s computer account was already deleted from the domain and a metadata cleanup had been performed.

Continue reading “Issues migrating a single tier enterprise CA or Why a CA should not be installed on a DC”

Thoughts on using Azure VMs as DAG witness in Exchange 2013

About two weeks ago Microsoft announced official support for using Azure VMs as DAG witness in Exchange Server 2013 as of now. But what is it good for and why should I move critical applications to the cloud? Continue reading “Thoughts on using Azure VMs as DAG witness in Exchange 2013”