We are having 3 ISP's and one GP Portal/Gateway pair configured on each of the ISP interface total of 3 GP Portal/Gateway on the single firewall all are accessed by FQDN name
We had bought 3 domain names from Go Daddy for all of our 3 ISP IP's namely (for example : ISP 1 IP - a.vpn, ISP 2 IP - b.vpn.com, ISP 3 - c.vpn.com) and using it in GP client.
As of now we having 3 firewall self signed certificate with CN name as a.vpn.com, b.vpn.com, c.vpn.com mapped to the 3 GP Portals/GW respectively.
Due to an security compliance audit we are advised to use the Public CA signed server certificate instead of firewall Self Signed CA Certificate.
I am having doubt in generating CSR request. Do we need to mention in CN field as *.vpn.com and in the attributes field for Host Name(SAN) do we need to mention a.vpn.com, b.vpn.com, c.vpn.com and then send the CSR to GoDaddy.
If any body had came across the same scenario. Also do we need to get Intermediate certificate only or also Root cert from Go Daddy for importing into PA Firewall for using it as trusted root CA for GP.
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