Connection modes
With Backbone Issue Sync there are different ways to set up a synchronization, e.g. over HTTPS or email/file exchange. This page gives an overview of those different connections and what is required for each of them.
Atlassian Marketplace License: Cloud to Cloud
In this set up you are syncing from a Cloud to a Cloud instance. No special network is required.
Atlassian Marketplace License: Data Center to Data Center/Cloud
In this setup you are syncing from a Data Center (or Server) instance to a Data Center, Server or Cloud instance. Both instances have Backbone installed.
Requirements for the Jira setting up the synchronization (left):
Has to be on Data Center (or Server)
Needs to be able to access Jira's REST API via HTTP(S)
Only if the other Jira (right) is on cloud: needs to be able to reach Backbone's cloud infrastructure (https://backbone-issue-sync.addons.k15t.com/) to validate the license
Remote License
In this set up you are syncing from a Data Center (or Server) instance to a Data Center, Server or Cloud instance. Only one instance has Backbone and a remote license installed.
Requirements for the Jira setting up the synchronization (left):
Has to be on Data Center (or Server)
Needs to be able to access Jira's REST API via HTTP(S)
Needs a Backbone remote license installed
Behind Firewall (Email)
In this set up you are syncing from a Data Center (or Server) instance to a Data Center (or Server) instance over email exchange.
Requirements:
Both Backbone installations need access to their mail servers for sending and receiving mails
Both Jiras need to be on Data Center (or Server)
Behind Firewall (File)
In this set up you are syncing from a Data Center (or Server) instance to a Data Center (or Server) instance over file exchange.
Requirements:
Backbone exports and imports changes to the local file system
The mechanism to transport files to other file system is not handled by Backbone
Both Jiras need to be on Data Center (or Server)