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28 .\" @(#)nfsd.8 8.4 (Berkeley) 3/29/95
42 .Op Fl n Ar num_servers
47 utility runs on a server machine to service
49 requests from client machines.
52 must be running for a machine to operate as a server.
54 Unless otherwise specified, four servers for
56 transport are started.
58 The following options are available:
65 without creating any servers.
66 This option can be used along with the
70 options to re-register NFS if the rpcbind server is restarted.
76 without creating any servers.
78 Specifies how many servers to create.
80 Specifies which IP address or hostname to bind to on the local host.
81 This option is recommended when a host has multiple interfaces.
84 options may be specified.
86 Specifies that nfsd should bind to the wildcard IP address.
87 This is the default if no
90 It may also be specified in addition to any
93 Note that NFS/UDP does not operate properly when
94 bound to the wildcard IP address whether you use -a or do not use -h.
106 .Dq Li "nfsd -u -t -n 6"
111 transports using six daemons.
113 A server should run enough daemons to handle
114 the maximum level of concurrency from its clients,
115 typically four to six.
119 utility listens for service requests at the port indicated in the
121 server specification; see
122 .%T "Network File System Protocol Specification" ,
124 .%T "NFS: Network File System Version 3 Protocol Specification" .
130 is not loaded in the running kernel, it will attempt
131 to load a loadable kernel module containing
139 will exit with an error.
143 is to be run on a host with multiple interfaces or interface aliases, use
146 option is recommended.
147 If you do not use the option NFS may not respond to
148 UDP packets from the same IP address they were sent to.
150 is also recommended when securing NFS exports on a firewalling machine such
151 that the NFS sockets can only be accessed by the inside interface.
155 would then be used to block nfs-related packets that come in on the outside
160 utility has to be terminated with
162 and cannot be killed with
168 utility needs to ignore these signals in order to stay alive as long
169 as possible during a shutdown, otherwise loopback mounts will
170 not be able to unmount.
174 .Dq Li "kill -USR1 <PID of master nfsd>"
189 utility first appeared in