Port 2401: CVS pserver
Port 2401 is CVS pserver, the password-authenticated server mode for the CVS version control system. CVS has largely been replaced by Subversion and Git, but the port is still occasionally seen on legacy infrastructure.
| Port number | 2401 |
|---|---|
| Service | CVS pserver |
| Protocol | TCP |
| Category | Version control |
| Default encryption | No |
Frequently asked questions
What is port 2401 used for?
Port 2401 is CVS pserver, the password-authenticated server mode for the CVS version control system. CVS has largely been replaced by Subversion and Git, but the port is still occasionally seen on legacy infrastructure.
Is port 2401 TCP or UDP?
Port 2401 (CVS pserver) uses TCP.
Is port 2401 secure?
Port 2401 is not encrypted by default. Where possible, use an encrypted alternative or tunnel it over TLS or a VPN.
Should I open port 2401 on my firewall?
Only if you specifically need CVS pserver. Expose it to the smallest set of trusted sources, and never open database or Windows-service ports to the whole internet.