Syncthing Server VPS for Private File Sync

Syncthing syncs files between devices peer to peer. When all devices are mobile or shut off at night syncs stall because no peer is online. An always on VPS acts as a permanent rendezvous and storage node so changes propagate instantly regardless of which client is awake. It also serves as an off site backup of every shared folder, protecting against laptop loss, theft, or disk failure.

Hosted on AnubizHost offshore VPS the node sits outside your home jurisdiction with hardened datacenter security, redundant power, and gigabit uplinks. Combined with the inherent end to end encryption of the Syncthing protocol the files stay private even from AnubizHost staff. We see encrypted traffic and at rest blobs only.

Install Syncthing from the official Debian repository or run the Docker image. Configure the web UI to bind to localhost only and access it over an SSH tunnel for security. Add your laptop, phone, and desktop device IDs and accept the share invites. Open ports 22000 TCP and UDP for sync traffic and 21027 UDP for local discovery on the VPS firewall. Behind Caddy add TLS to the web UI if you prefer direct access.

For relay only deployment run strelaysrv instead. This provides a private relay that your devices use when direct peer connections fail behind NAT. Pin your devices to your own relay for guaranteed performance and privacy versus the public relay pool. A 1 vCPU 1 GB VPS handles a personal relay easily and the cost is flat regardless of traffic.

Syncthing supports an untrusted encrypted folder mode where the remote node stores ciphertext only and cannot decrypt files. Use this when you want maximum privacy from the VPS side and treat the VPS as a pure backup target. Trusted devices share the unlock password between themselves and the VPS sees encrypted blobs even at the filesystem layer.

Pair with offshore hosting and crypto billing for a fully anonymous setup. AnubizHost accepts Bitcoin, Monero, Ethereum, USDT, and Litecoin. No KYC, no real name, no card on file. Service activates within minutes of payment confirmation and renews monthly from your crypto credit balance.