Renew Skype for Business 2015 certificate

Hello,

I need little help with renewing 3rd party certificate on Skype for Business 2015 server.
As per pictures attached, i want to renew only that certificate (SIP, since it is 3rd party and all others are from internal CA), and when i go to Request with Advanced option, and populate everything i end up with csr, that has a common name of webdir.<domain>.com, in stead of sip.<domain>.com (as it is atm).

So, the question is how to renew this certificate but to have CN of sip.<domain>.com, when there is no option to define CN?

Can I use maybe exchange server, generate CSR there, then just delete it after i get new cert, or something like that?

Regards,
Ivan.
sip1.jpg
sip2.jpg
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IvanSystem EngineerAsked:
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MAS (MVE)EE Solution Guide - Technical Dept HeadCommented:
-->Can I use maybe exchange server, generate CSR there, then just delete it after i get new cert, or something like that?
Yes.
Create a CSR and install certificate in Exchange server and export with private key.
Then import to SFB
Import-CsCertificate -Path "C:\Certificates\WebServer.pfx" -PrivateKeyExportable $True

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Enable services on websevicesexternal
Set-CsCertificate -Type WebServicesExternal -Thumbprint "B142918E463981A76503828BB1278391B716280987B"

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Use this command to get the thumbprint
Get-CsCertificate

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Use this to create CSR easily
https://www.experts-exchange.com/articles/28662/Easy-CSR-creation-Exchange-2007-2010-and-2013.html
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IvanSystem EngineerAuthor Commented:
Hi MAS,

will try tomorrow, and let you know how it went.

Regards,
Ivan.
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