So, Linux (Debian) user accounts; What is best practice for running applications as their own UID? Why should I do that? and how can I avoid file permission errors.

I see advice such as "create a new system account called radar/sonarr/Plex". So I do that, and then find all my downloads are owned by qbittorrent user and it doesn't have permission to move them into my Plex library and Plex can't view them either.

All seems overcomplicated. Why can't I just run everything all with username 'Plex'?

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[–] Chewy7324@discuss.tchncs.de 8 points 1 year ago* (last edited 1 year ago) (3 children)

Running everything under a single user is possible, but it also means an issue with a single app could wipe everything. It's better practice to add each user to a media group, and set *arr and qbittorrent to use this group and allow write permissions for users in the same group (e.g. 775 instead of 755). This means all users (plex, qbit, *arr) in the group media can access and modify files owned by media (or use the GID).

[–] cerulean_blue@lemmy.ml 3 points 1 year ago

That makes sense. Thank you so much. That is a question that has caused me issues for a long time. Now I understand it.

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