| NFSD(8) | System Manager's Manual | NFSD(8) | 
NAME
 nfsd — remote NFS server
SYNOPSIS
| nfsd | [-46rut] [-n num_threads] | 
 
DESCRIPTION
 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:
- 
-r
- 
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.
- 
-n
- 
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.
- 
-4
- 
Only listen to IPv4 requests. By default nfsd listens to both IPv6 and IPv4 and tries to register for both.
- 
-6
- 
Only listen to IPv6 requests.
- 
-t
- 
Serve only TCP NFS clients. By default nfsd serves both TCP NFS and UDP NFS clients
- 
-u
- 
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.
 
EXIT STATUS
 The nfsd utility exits 0 on success, and >0 if an error occurs.
EXAMPLES
 “nfsd -n 6” serves UDP and TCP transports using six threads.
HISTORY
 The nfsd utility first appeared in 4.4BSD.