x SuSE Linux 13.1-RELEASE x x SuSE Linux 13.1-RELEASEx rpc.nfsd(8) System Manager's Manual 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 different 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 NFS versions 2,3,4 and the newer version 4.1. -s or --syslog By default, rpc.nfsd logs error messages (and debug messages, if enabled) to stderr. This option makes rpc.nfsd log these mes- sages 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. -V or --nfs-version vers This option can be used to request that rpc.nfsd offer certain versions of NFS. The current version of rpc.nfsd can support NFS versions 2,3,4 and the newer version 4.1. 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 num- ber. 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 proto- col and address family combinations that are marked visible in the net- config 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)
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