In some case you might need a list of the servers required for Microsoft Windows activation to apply to a firewall or proxy policy.
This is the list as defined by Microsoft:
- http://go.microsoft.com/
- https://sls.microsoft.com/
- https://sls.microsoft.com:443
- http://crl.microsoft.com/pki/crl/products/MicrosoftRootAuthority.crl
- http://crl.microsoft.com/pki/crl/products/MicrosoftProductSecureCommunications.crl
- http://www.microsoft.com/pki/crl/products/MicrosoftProductSecureCommunications.crl
- http://crl.microsoft.com/pki/crl/products/MicrosoftProductSecureServer.crl
- http://www.microsoft.com/pki/crl/products/MicrosoftProductSecureServer.crl
- https://activation.sls.microsoft.com
See this article for further information: