I needed a Workflow Manager Installation for my SharePoint 2016 farm and I used the Web Installer to do all the Installation work for me following this guide: https://gallery.technet.microsoft.com/SharePoint-2016-Workflow-acd5ba2a When the Installation finished I configured the Installation Manager with the wizard and got the following error message during the configuration: System.Management.Automation.CmdletInvocationException: An object or column name is missing or empty. For SELECT INTO statements, verify each column has a name. For other statements, look for empty alias names. Aliases defined as "" or [] are not allowed. Change the alias to a valid name. The reason for this error in...

The last couple of days I did some test with Exchange Online and Exchange on premise hybrid environments. I connected my on premise Exchange environment with Exchange Online and moved a mailbox to the cloud (Onboarding). The move succeeded and the mailbox was reachable in the cloud. After this  I wanted to move the mailbox back to my on premise environment (Offboarding) and created a new move request. This time the move failed and I got the following error in the move log: Error = Transient error ResourceUnhealthyException has occurred The reason for this error is that the search index...

We use the SharePoint Patterns and Practices framework in a project to provide SharePoint Site Collections for SharePoint Online. For a few days now, when I log on to SharePoint Online with the PowerShell cmdlet Connect-PnPOnline, I have received the following error message: Cannot contact web site 'https://customer-admin.sharepoint.com/' or the web site does not support SharePoint Online credentials. The response status code is 'Unauthorized'. The response headers are 'X-SharePointHealthScore=0, X-MS DAVEXT_Error=917656; Access+denied.+Before+opening+files+in+this+location%2c+you+must+first+browse+to+the+web+site+and+select+the+option+to+login+automatically., SPRequestGuid=ac6c229e-80d9-4000-83e5-3a2938f84c4b, request-id=ac6c229e-80d9-4000-83e5-3a2938f84 c4b, MS-CV=niJsrNmAAECD5TopOPhMSw.0, Strict-Transport-Security=max-age=31536000, X-FRAME-OPTIONS=SAMEORIGIN, SPRequestDuration=187, SPIisLatency=1, MicrosoftSharePointTeamServices=16.0.0.6927, X-Content-Type-Options=nosniff, X-MS-InvokeApp=1; RequireReadOnly , X-MSEdge-Ref=Ref A: 4A35F4682A1449D1967ECE00FC378207 Ref B: AMSEDGE1019 Ref C: 2017-10-13T07:23:37Z, Content-Length=0, Content-Type=text/plain; charset=utf-8, Date=Fri, 13 Oct...

Sometimes, when I want to change the product key on Windows Server 2016, I can't do it because nothing happens when I click the link in the activation Settings. If this happens I use slmgr.vbs from the command line to Change the key and activate it online. Use the following command to change the product key: slmgr.vbs /ipk ABCDE-FGHIJ-KLMNO-PQRST-UVWXY And this command to activate it online: slmgr.vbs /ato The following site has a lot of examples on how to use slmgr.vbs: https://www.howtogeek.com/245445/how-to-use-slmgr-to-change-remove-or-extend-your-windows-license/

I still like to have the icons for 'Network' and 'This PC' on my Desktop on Windows. In Windows 10 and Server 2016, this setting is not so easy to find. It can be accessed via Settings -> Personalization -> Designs -> Themes -> Desktop Icon Settings. Another way is to execute the following command: rundll32.exe shell32.dll, Control_RunDLL desk.cpl,, 0 The setting can also be found via the desktop search by typing in the term "Common".

In my test environment I recently built a new Windows Server 2016 based remote desktop environment. The environment consists of a server with the roles RD Web Access, RD Gateway, RD Gateway, RD Connection Broker and the RD License Server as well as another server that acts only as RD Session Host. For the roles Web Access, Gateway and Connection Broker, an official wildcard certificate was used and a official DNS name has been created so that the server can be accessed via the Internet. After everything was set up I did some tests and tried to access the Web...

A couple of days ago a customer asked me if I know a solution for his problem: They have used the standard domain administrator account (contoso\Administrator) during the last 10 years for the installation and configuration of server software and applications. Now they want to change the password of the domain administrator and they don't know where the account has been used so that they can change it in the application / service / scheduled task etc. Using the standard domain administrator account to install and configure software is not a good idea because in a situation like this you...

Because I search it every time when I do something with Icinga2 (great Software by the way) the path to the icons for hosts and services is the following on Ubuntu: cd /usr/share/icingaweb2/public/img/icons

From time to time I need to enable IMAP and Message Submission for Exchange servers. Most of the time it is because there is some kind of CRM / ERP System that needs to send and receive emails. Here are the steps to enable IMAP and Message Submission with SSL/TLS. I used a Wildcard certificate (*.contoso.com) to secure the data. IMAP/S uses port 993 (TCP) and Message Submission uses port 587 (TCP). Message Submission was created to distinguish between SMTP for Servers and SMTP for Clients. SMTP for Servers runs on port 25 and SMTP for Clients (Message Submission) runs...

Today I wrote a script for a customer of mine to send emails to remote users that their password will expire in 10 days or less and they have to change it. To get the Information when the Password of a user will expired I used the PowerShell cmdlet Get-ADUser and received the AD property 'msDS-UserPasswordExpiryTimeComputed': $users = Get-ADUser -Filter {Enabled -eq $true -and PasswordNeverExpires -eq $false} –Properties "DisplayName", "msDS-UserPasswordExpiryTimeComputed", "UserPrincipalName", "GivenName", "SN", "Mail" | Select-Object -Property "Displayname",@{Name="ExpiryDate";Expression={[datetime]::FromFileTime($_."msDS-UserPasswordExpiryTimeComputed")}}, "UserPrincipalName", "GivenName", "SN", "Mail" | Sort DisplayName This worked on the Domain Controller but not on the Exchange Server so I was...