Some of those are Mastodon instances where someone has subscribed to a community on your server

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Nah, it’s all safe, it’s in containers

I have a rented server with 8 Xeon E3-1246 and 64GB at Hetzner where I host:

• Vaultwarden
• Gitlab (git repo, container registry, static blog (pages with Hugo))
• Drawio (Diagrams)
• Kroki (for Gitlab)
• Gitlab runner
• FreshRSS
• Nextcloud
• Redis
• Headscale (Tailscale server)
• Keycloak
• MariaDB
• PostgreSQL
• Plex
• Privacybin
• Wallabag
• Hedgedoc

It’s all behind a Traefik instance handling Let’s Encrypt and using the Docker socket to route traffic based on labels in docker-compose.yml. Behind these I also run k3s and from time to time some VMs. I also have a 1TB storage pod at Hetzner where I use restic to back everything up from this instance as well as from my home system and laptops.