Installing Jira applications on your own Linux (ubuntu on any linux) Server (Self Managed).
Install Jira on Linux Server.
You need a VPS Server (At least 2 GB of RAM).
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My Recommendation :
You can choose UpCloud Server: https://upcloud.com/signup/?promo=5K2663
(If you signup with this you will get $25 extra when first payment paid)
or for cheap VPS you can choose: https://vpsdime.com/aff.php?aff=1135
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Here I used Ubuntu 18.04