What causes lsyncd to sync to empty NAS folders?

NAS mount fails at boot; lsyncd treats empty dirs as targets. Fix with BindsTo= and Requires= in systemd override.

How do you stop rsync reuploading synced files to NAS?

Use --size-only and noac CIFS option. Ignores timestamps, checks sizes only.

Yes, with fstab mounts, excludes, and dependencies. But power cycles test it hard. Word count: ~950.

Dreaming of smoothly PC-to-NAS file sync? I chased that ghost too—until these gritty fixes turned chaos into clockwork. No more data disasters.

theAIcatchup Apr 10, 2026 3 min read

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Community-driven. Code-first.

#NAS sync #Synology #Synology NAS #lsyncd #rsync #systemd #systemd overrides

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Originally reported by Dev.to