What port number is used by NFS?

Network File System (NFS) primarily uses port number 2049 for its operations. NFS enables file sharing over a network and allows users to access files on a remote server as if they were on their local machine. The standardization of port 2049 for NFS is crucial for ensuring that NFS services can be reliably and consistently accessed across different systems and configurations.

While other ports may be utilized in network configurations and NFS might use additional ports in certain contexts (e.g., for mountd or other ancillary services), the core service itself runs on port 2049. This makes it a key piece of information when configuring firewalls or network settings to allow NFS traffic.