Port 2049 — NFS
Quick reference for TCP/UDP port 2049, used by NFS. Includes what the service does, security guidance and related ports.
What is port 2049?
Network File System.
What port does NFS use?
NFS listens on port 2049 by default.
Is port 2049 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 2049
Test-NetConnection HOST -Port 2049
nmap -p 2049 HOST
A refused or timed-out connection means the port is closed or filtered by a firewall.
Security guidance
High risk — do not expose to the internet
Port 2049 (NFS) is high-risk because the service it carries is a frequent target for credential attacks, brute force or unpatched-vulnerability scanning. Keep it bound to localhost or your VPN, never forward it directly on a router, and require strong authentication.
Related ports
Frequently asked
What is port 2049 used for?+
Port 2049 is the standard TCP/UDP port for NFS. Network File System.
What port does NFS use?+
NFS listens on port 2049 by default.
Your IP Address Is Exposed Right Now
Every website you visit can see your real IP address and location. NordVPN encrypts your traffic and hides your identity with military-grade encryption. Stay anonymous online.