rpc.nfsd(8)                                                                                                          rpc.nfsd(8)



NAME
       rpc.nfsd - NFS server process

SYNOPSIS
       /usr/sbin/rpc.nfsd [options] nproc

DESCRIPTION
       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  nfs-
              stat(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 con-
       nections.


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.



                                                           7 Aug 2006                                                rpc.nfsd(8)