Knowledgebase: CSR Generation
CSR Generation: Exchange 2010 (PowerShell)

Exchange 2010 CSR using Exchange Shell

Be advised: You may copy and paste the below commands into your favorite text editor such as Notepad or Notepad++ in order to customize them to suite your needs. We provide them only to show the structure of the New-ExchangeCertificate command (cmdlet).

Method #1: Output to the Screen

Open Exchange Management Shell

Run the following command:
-> New-ExchangeCertificate -GenerateRequest -SubjectName "C=GB, O=Comodo, cn=owa.comodo.com" -KeySize 2048 -PrivateKeyExportable $true

Note: You can copy into notepad (or any text editor) and paste the command into the shell.
Alternatively, one can run the following command add the SANs(Subject Alternative Names) in the CSR as well. (optional)

-> New-ExchangeCertificate -GenerateRequest -SubjectName "C=GB, O=Comodo, cn=owa.comodo.com" -DomainName owa.comodo.com, owa, autodiscover.comodo.com -PrivateKeyExportable $true

CSR will be displayed on screen. You can copy and paste this information.

Method #2: Save to File

Open Exchange Management Shell

Run the following commands:

-> $CSR = New-ExchangeCertificate -GenerateRequest -SubjectName "C=GB, O=Comodo, cn=owa.comodo.com" -PrivateKeyExportable $true

-> Set-Content -Path "C:\2010certreq.txt" -Value $CSR

At the path location specified in the previous step, your CSR will be written to that file name you have provided.

For more information about the New-ExchangeCertificate command(cmdlet), please visit Microsoft's TechNet.

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