Change UPN of all AD users in an OU

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Issue: You need to change the User Principal Name (UPN) on a large group of users Solution: The following command will allow you to change the UPN of all users contained in a chosen OU. Get-ADUser -Filter * -SearchBase 'ou=yourOU,dc=yourDomain,dc=com' -Properties userPrincipalName | foreach {Set-ADUser $_ -UserPrincipalName "$($_.samaccountname)@newupndomain.com"} To test your command and determine who it would apply to, use only this portion initially: Get-ADUser -Filter * -SearchBase 'ou=yourOU,dc=yourDomain,dc=com' Read more [...]

Install SSL Certificate on Exchange 2016

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Issue: You have obtained a certificate from a recognized third party certificate authority and need to install it on your Exchange 2016 server. Assumptions: These instructions assume you have already purchased an SSL certificate and have created and submitted a certificate request. Solution: the following steps will show you how to install your certificate on Exchange 2016 Click Servers > Certificates Select your pending certificate request, and click the 'Complete' button on Read more [...]

Create Certificate Request (CSR) on Exchange 2016

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Issue: You need to install a third party ssl certificate on Exchange 2016 Solution: The first step is to create a certificate request that can be submitted to a third party certificate authority. In Exchange Admin Center, click "Servers" on the left side and then click the "Certificates" tab Click the Plus Sign to add a new certificate Click 'Next' On the New Exchange Certificate screen Input a friendly name for your certificate, I generally make this the primary hostname that Read more [...]

Change Internal URL to match External URL

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Issue: You need to efficiently change all the internal URL's on an Exchange server to the value of the External URL. Background: This is a common necessity when your internal AD domain name has a .local and/or cannot be included in the SSL certificate on the Exchange server.  This article applies to Exchange 2010, 2013 and 2016.  It may also work on Exchange 2007 but I have not tested it. Solution: Using Exchange Management Shell we can populate all of the internal URL fields using the Read more [...]

Exchange 2016 Windows 2016 prerequisites

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Issue: You need to efficiently install the required prerequisites for Exchange 2016 on Windows Server 2016.   Solution: The below commands will prep Windows 2016 for the Exchange 2016 Mailbox Server Role (Note: CAS role is built-in in Exchange 2016). Launch a run-as-administrator Powershell and use the following command to install the Windows 2016 prerequisites: Install-WindowsFeature NET-Framework-45-Features, RPC-over-HTTP-proxy, RSAT-Clustering, RSAT-Clustering-CmdInterface, RSAT-Clustering-Mgmt, Read more [...]