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SSL certificate authentication

Last Modified: 2016-01-29
We have a application being built that will consist of a app server, a db server, and workstations. The app server will house a ssl cert store and will handle certs for our internal network. We have been told that we need to open up a lot of ports in our firewall to allow this server to go out to digicert to authorize the certs.
A) Are these ports needed?
b) If so, exactly what ports are needed?
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