rpc.nfsd
Section: Maintenance Commands (8)Updated: 7 Aug 2006
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NAME
rpc.nfsd - NFS server processSYNOPSIS
/usr/sbin/rpc.nfsd [options] nprocDESCRIPTION
The rpc.nfsd program implements the user level part of the NFS service. The main functionality is handled by the nfsd kernel module. The user space program merely specifies what sort of sockets the kernel service should listen on, what NFS versions it should support, and how many kernel threads it should use. The rpc.mountd server provides an ancillary service needed to satisfy mount requests by NFS clients.OPTIONS
- -d or --debug
- enable logging of debugging messages
- -H or --host hostname
- specify a particular hostname (or address) that NFS requests will be accepted on. By default, rpc.nfsd will accept NFS requests on all known network addresses. Note that lockd (which performs file locking services for NFS) may still accept request on all known network addresses. This may change in future releases of the Linux Kernel.
- -p or --port port
- specify a diferent port to listen on for NFS requests. By default, rpc.nfsd will listen on port 2049.
- -N or --no-nfs-version vers
- This option can be used to request that rpc.nfsd does not offer certain versions of NFS. The current version of rpc.nfsd can support both NFS version 2,3 and the newer version 4.
- -s or --syslog
- By default, rpc.nfsd logs error messages (and debug messages, if enabled) to stderr. This option makes rpc.nfsd log these messages to syslog instead. Note that errors encountered during option processing will still be logged to stderr regardless of this option.
- -T or --no-tcp
- Disable rpc.nfsd from accepting TCP connections from clients.
- -U or --no-udp
- Disable rpc.nfsd from accepting UDP connections from clients.
- nproc
-
specify the number of NFS server threads. By default, just one
thread is started. However, for optimum performance several threads
should be used. The actual figure depends on the number of and the work
load created by the NFS clients, but a useful starting point is
8 threads. Effects of modifying that number can be checked using
the
nfsstat(8)
program.
Note that if the NFS server is already running, then the options for
specifying host, port, and protocol will be ignored. The number of
processes given will be the only option considered, and the number of
active
nfsd
processes will be increased or decreased to match this number.
In particular
rpc.nfsd 0
will stop all threads and thus close any open connections.
NOTES
If the program is built with TI-RPC support, it will enable any protocol and address family combinations that are marked visible in the netconfig database.SEE ALSO
rpc.mountd(8), exports(5), exportfs(8), rpc.rquotad(8), nfsstat(8), netconfig(5).AUTHOR
Olaf Kirch, Bill Hawes, H. J. Lu, G. Allan Morris III, and a host of others.
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Time: 05:34:29 GMT, December 24, 2015