woensdag 16 mei 2012

Exchange EMC / EMS Kerberos Authentication Failed

Yesterday we suddenly had issues with opening the Exchange EMC of EMS on one of our Exchange servers.

The exact error is shown below:

“The attempt to connect to http://serverfqdn/powershell using “kerberos” authentication failed: Connecting to remote server failed with the following error message : The WinRM client cannot process the request. It cannot determine the content type of the HTTP response from the destination computer. The content type is absent or invalid.”


Googling this error did not find a proper solution for me.
But, it had something to do with WinRM.
There  is a application log specifically for WinRM.

Wortell - visionapp Remote Desktop 2009_10

Wortell - visionapp Remote Desktop 2009_9

Within the eventlog I found the error below:
”WSMan operation Invoke failed, error code 2150858999

This error found me a solution!
Changing the values of the MaxResuestBytes en MaxFieldLength registry keys did the trick.
The max value for MaxFieldLength is 65534 ( decimal ) and the max value for MaxRequestBytes is 40000 ( decimal ).
In my case the MaxFieldLength was already set to the maximum, but the MaxRequestBytes was set to 20000.
I changed this value to 40000 and rebooted the server, afterwards I could access the EMC / EMS without any issues.

Wortell - visionapp Remote Desktop 2009_8

Office 365 Sharepoint Online updates now available!

The second update to SharePoint Online (SPO) since the launch of Office 365 (O365) is beginning to roll out worldwide. I want to share information about the new features that will be available as part of this service update:

  • Enterprise Readiness
    • SharePoint Online was initially scoped to scale to customers with fewer than 20,000 Active Directory entries (specifically user objects). This service update allows customers with up to 500,000 user objects to provision SharePoint Online. As a result, customers of any size can easily start using SharePoint Online. And in the future, you can expect even larger scale limits.
  • Recycle Bin Enhancements
    • Business is full of"oops" moments, and sometimes these moments can really slow down productivity. SharePoint Online now offers numerous levels of recovery no matter what gets deleted. Specifically, enterprise customers can now restore full site collections, in addition to sites, documents, lists, and list items.
  • External Sharing Gets a Broader Reach
    • The days when external invitees had to use a specific domain-based email address are gone. Instead, external users can now use their business email address to authenticate when invited into an Office 365 customer's site collection.
  • PDFs Handling Improvements
    • Office 365 users wanted a better, more connected and governed experience when it came to working with PDF files within SharePoint Online document libraries. Thanks to your direct comments and active voices in the Community forums, PDF files will now open directly into Adobe Reader without requiring that it be downloaded first. Read more on our blog.