So I’m relatively new to server hosting. (But experienced with remote web hosting from providers.) After about a year of fighting to run Nextcloud on a hosting company and finally losing everything from the cPanel vulnerability a few months ago, I broke down and launched my own home server. I’m looking for advice to maximize security.

CachyOS Linux with ClamAV Docker via Portainer Nextcloud (E2EE), Immich, DocuSeal and NoteTrace Routed through a domain and subdimains via Zero Trust Cloudflare Tunnel and Cloudflare DNS.

I have regular redundant backups both onsite and offsite with Duplicati.

My passwords for OS and all admin dashboards are extremely long, unique, random strings managed by Bitwarden.

I know just enough about this stuff to get into trouble. What else should I setup? I have little to no monitoring going on and don’t know much about that direction.

  • Trucule@lemmy.worldEnglish
    3·
    8 hours ago

    For monitoring, I’d start with alerts on changes you didn’t make. Save a baseline of listening ports with ss -tlnp and of running containers with docker ps --format '{{.Names}} {{.Image}}', then have a daily cron job compare both against the baseline and push any difference to your phone with ntfy.

    Keep the baseline files outside your Docker volumes.

    Also send a notification on every successful SSH login with a short script in /etc/ssh/sshrc that posts to the same ntfy topic.

    Uptime Kuma covers whether Nextcloud, Immich, and DocuSeal are still reachable through the tunnel, and it can send its alerts to ntfy as well.

    Drafted with AI.