Here is the situation: There are two servers (both with JIRA installed) running in two different locations behind each company’s firewall. The goal is to connect these two JIRAs together, and share issues. If there is an issue created in one JIRA, and the other JIRA would be able to have read and write access to this issues as well.
I tried to connect two JIRA instances together using Application Link based on the following two Atlassian documentations.
1. Federating JIRA – Managing Multiple Instances
2. Configuring Trusted Apps Authentication for an Application Link
However, the Incoming Authentication configuration cannot be setup successfully. It gives me the error message like Unable to retrieve the application's certificate.
My question is, is there another way to connect two JIRA together, and how to do that?