https://mrtomlinux.org/tags/borgbackup/ Recent content in Borgbackup on Linux Café Hugo en Thu, 01 Oct 2026 08:23:50 +0200 https://mrtomlinux.org/post/2026-10-01-how-a-forgotten-ssh-key-stopped-my-nightly-of/ Thu, 01 Oct 2026 08:23:50 +0200 https://mrtomlinux.org/post/2026-10-01-how-a-forgotten-ssh-key-stopped-my-nightly-of/ <h2 id="the-night-i-lost-an-offsite-borg-backup">The night I lost an off‑site Borg backup</h2> <p>I run a 24/7 home‑lab server that backs up my home directories to a remote NAS with Borg. The backup is triggered by a systemd timer that fires every night at 02:00 UTC. For months it worked flawlessly, but one morning the timer ran, the job logged “ssh: connect to host …: Permission denied”, and the backup vanished into the night. The culprit? A forgotten SSH key.</p>