What is port 8080/tcp used for in IPA

Issue

• In one of my first tests with a replica I noticed that there was communication from the replica to "First server" on tcp port 8080 when using the UI on the replica to look at the certificate information. So I had to open this tcp port in the firewall.
• This information was not in the manual.
• Currently it does not seem to need that port to be open anymore (at least I am not able to reproduce this issue with the current updates). However the port is still used by a Java process and active. I am in the process of documenting the setup and want to know if this port is still needed.