If something is in DMZ usually mean that it have public access (from the Internet) this mean that Jira would be available for everyone that know the URL (Also for Mobile App). Of course if this is not working it might mean an bigger problem that is related to your firewall settings.
Below you can read everything that is related to the Jira Server app
There are a few existing discussions which might help you:
Hi community 👋, as every Monday we're bringing you a quick update on what happened in the Atlassian ecosystem last week. There were a few interesting events like for example the announcement of th...
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