How to Generate a Certficiate Signing Request (CSR) for a Certificate Renewal in IIS


This article demonstrates the steps needed to perform a Certificate Renewal Request on a Windows server running IIS. This process is used when an existing certificate is coming close to expiration and needs to be renewed. Do not use this article to create a new certificate request for a certificate that does not yet exist - it only works for renewals.

 

Create a .CSR File in IIS

In IIS, go to the "Server Certificates" icon.

You will be presented with a list of installed certificates. Right-click the certificate you want to renew.

Choose "Create Certificate Request"

Fill out the naming information for the CSR.

 

Choose RSA and 2048 bit length.

 

Save your .CSR file. This can be emailed or attached to ServiceNow SSL request.