May I ask what I should look for in the log files to detect this (and so I can configure fail2ban correctly)?

Wait for ninjaCentral to open again and be happy

This is a really great ELI5 explanation of how Usenet filesharing works technically, nice!

Have a look at my German Usenet beginners guide: https://github.com/PCJones/usenet-guide

Let me know if you need any further help

For all German speakers I have a beginners guide: https://github.com/PCJones/usenet-guide

I also use a Hetzner Storagebox for my Jellyfin instance, I mount it via SMB. Works great.

For German stuff there is xrel.to

Usenet is the secret for German stuff. I have a German beginners guide: https://github.com/PCJones/usenet-guide

sceneNZBs for German content. Will have everything you need :)

If you are using Radarr & Sonarr and want to prefer German DL (Dual Language, German + Original) releases I have a guide for that: https://github.com/PCJones/radarr-sonarr-german-dual-language

Also since it looks like you are new to using the Usenet, I have a German beginners guide: https://github.com/PCJones/usenet-guide/

fileleechers is a board and not an indexer though right? So you can’t add it to Sonarr and Radarr

Feel free to correct me, I don’t know a lot about them since they are invite only

If you are looking for German (or German + English dual language) content it can be very hard to find stuff on public torrent trackers and it’s pretty hard to get onto private German trackers - but don’t worry, there is a solution:

Usenet and the indexer sceneNZBs.com that specialises in German releases have got you covered!

If you want to automate the search for German Dual Language content using Radarr/Sonarr I made a guide (that also works for torrents too): https://github.com/PCJones/radarr-sonarr-german-dual-language

Usenet providers:

Ewaka is the go to provider, however they are based in the netherlands so your speed may vary. An alternative would be frugal usenet as they also do have a US based server, but Ewakas retention is way better. If you use SABnzbd as downloader you could even add both frugal and ewaka with the same priority if you can’t max out your speed with one. Maybe you can try ewaka for 1 month first and see if it’s good enough for you.

Special links that lead to the cheapest offers:

• https://billing.frugalusenet.com/signup/neQeZxl
• https://www.eweka.nl/en/landing/special-deal

I saw that you mentioned giganews, however based on a quick search I saw that they seem to have a really bad reputation nowadays

Usenet Indexers:

I can’t tell you anything about nzbplanet as I never used it, but nzbGeek is a good start. You’ll need a paid membership for every indexer though, a free membership won’t allow for *arr automatisation.

https://ninjacentral.co.za/ just opened registrations yesterday, they are also quite good.

https://drunkenslug.com is great indexer, however registrations are closed at the moment - you can easily find an invite though if you lurk around here.