Manual browser: nfsd(8)

NFSD(8) System Manager's Manual NFSD(8)


nfsdremote NFS server


nfsd [-46rut] [-n num_threads]


nfsd runs on a server machine to service NFS requests from client machines. At least one nfsd must be running for a machine to operate as a server.

Unless otherwise specified, four servers for UDP transport are started.

The following options are available:

Register the NFS service with rpcbind(8) without creating any servers. This option can be used along with the -u or -t options to re-register NFS if the portmap server is restarted.
Specifies how many server threads to create. The default is 4. A server should run enough threads to handle the maximum level of concurrency from its clients.
Only listen to IPv4 requests. By default nfsd listens to both IPv6 and IPv4 and tries to register for both.
Only listen to IPv6 requests.
Serve only TCP NFS clients. By default nfsd serves both TCP NFS and UDP NFS clients
Serve only UDP NFS clients.

nfsd listens for service requests at the port indicated in the NFS server specification; see Network File System Protocol Specification, RFC 1094 and NFS: Network File System Version 3 Protocol Specification.


The nfsd utility exits 0 on success, and >0 if an error occurs.


nfsd -n 6” serves UDP and TCP transports using six threads.


The nfsd utility first appeared in 4.4BSD.
August 12, 2012 NetBSD 7.0