Port 3690 — Subversion
Quick reference for TCP/UDP port 3690, used by Subversion. Includes what the service does, security guidance and related ports.
What is port 3690?
Apache Subversion.
What port does Subversion use?
Subversion listens on port 3690 by default.
Is port 3690 open? How to check
Run one of these from your computer, replacing HOST with the IP address or domain you want to test.
nc -zv HOST 3690
Test-NetConnection HOST -Port 3690
nmap -p 3690 HOST
A refused or timed-out connection means the port is closed or filtered by a firewall.
Security guidance
Medium risk — open with care
Port 3690 (Subversion) can safely face the internet if you keep the software up to date, restrict admin endpoints, and use TLS where possible. Audit who can reach it and watch your logs.
Related ports
Frequently asked
What is port 3690 used for?+
Port 3690 is the standard TCP/UDP port for Subversion. Apache Subversion.
What port does Subversion use?+
Subversion listens on port 3690 by default.
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