Dealing with duplicate mailboxes in Office 365 hybrid mode

At my employer we recently decided to switch over to Office 365. During the migration periode I have set-up our Exchange 2010 server in Office 365 hybrid mode. Also set-up the Azure Active Directory Sync. All existing users being sync both ways, perfect!

But then it happend. New users. All seemed working OK, until we noticed two users were not receiving e-mail from IT. What could be the problem here?

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Extending disk volume fails – The parameter is incorrect (Windows Server)

When trying to extend a volume in windows I received an error when applying the extend. The volume is extended, but the extra space isn’t visible/usable… This is how I fixed it!

Logical Disk Manager - The parameter is incorrect.
Logical Disk Manager – The parameter is incorrect.

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Enabling Disk Performance Counter in Task Manager for Windows Server 2012 (R2)

I was busy with some performance troubleshooting on our SharePoint 2013 farm today. And again I got frustrated with the fact that the disk performance counters could not be seen in Task Manager.

Task Manager without disk
Task Manager without disk performance counter.

I found out how to add the counter to Task Manager in Windows Server 2012 (R2)

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New sub-domain for Microsoft AV definition updates

This morning I was surprised by my Configuration Manager server with alerts that the software updates synchronization was failing.

Luckily for me I decided to check my other emails before diving right into the hell called SCCM logging. My FortiGate cluster was sending me emails that it was blocking some files. Files with file name: mpam-fe.exe.

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Disable Windows 10 upgrade notification

Windows 10 Upgrade Notification
Windows 10 Upgrade Notification

This week Microsoft announced it will be releasing Windows 10 on July 29th. Which is a good thing! They also started activating a pop-up notification which allows users to pre download Windows 10 to their system and install it as soon as it get out on July 29th.

This is not something I want my users to do on their own.

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Things to remember when creating a policy with custom services in a FortiGate firewall

Writing them down here as I always seem to be forgetting them. And than thus having to bother the great guys at www.securelayers.com

  • Check if NAT needs to be enabled
  • In case of recently created custom service’s; check if the port number is only filled in in the source. NOT in destination or both.\
  • Make sure the policies are in the correct order. Check if another policy which also applies to the traffic isn’t above is.