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Syncthing on Ubuntu 24.04 LTS

Syncthing is continuous, peer-to-peer file synchronisation — keep folders in sync between servers and devices without a central cloud. This image gives you a production-ready deployment within minutes of first boot — no dependency wrangling, no manual hardening checklist. Published and maintained by Derek Coleman & Associates Inc: freshly rebuilt against current security advisories and deployable straight from the Azure Marketplace into your own subscription.

Get it on Azure Marketplace Deploy on Azure Support & quick start

Version: Syncthing 2.1.1Platform: Ubuntu 24.04 LTSPorts: 8384 (web GUI), 22000/tcp and 22000/udp (sync), 21027/udp (local discovery)Category: Applications

What's included

Syncthing installed from the official upstream source
Ubuntu 24.04 LTS base with automatic security updates enabled
No shared or default passwords — a unique admin credential is generated on your VM at first boot
Trusted Launch support: Secure Boot + vTPM
Azure Monitor Agent, Defender for Cloud, and Update Manager install cleanly

Quick start

Deploy from the Azure Marketplace (Get It Now → Create), choosing your SSH key at the Administration step.
Allow inbound SSH (22) for yourself plus the application port(s): 8384 (web GUI) to your IP; 22000 tcp/udp to your peers — restrict to your own IP where possible. The in-image firewall already allows them; only the Network Security Group (NSG) keeps them closed.
Open http://<VM-IP>:8384/ and sign in as syncthingadmin (see First login below).
Add your other devices (Remote Devices → Add) using their Device IDs and share a folder.

Get your admin password (one time)

ssh <your-username>@<VM-IP>
sudo cat /root/syncthing-admin-credentials.txt

Every image ships without any shared or default password — a unique admin credential is generated for your VM on first boot. Change it after first sign-in.

Common use cases

Always-on sync node for a team's folders
Off-site copy of important directories
Distributing files to edge devices
Private alternative to hosted sync services

Why our images

Freshly rebuilt against the latest security advisories, no shared default credentials, Trusted Launch support, and automatic OS security updates — everything runs in your own Azure subscription under your governance.

Need help?

Product support page
support@dcassociatesgroup.com
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