nfsd(1M) System Administration Commands nfsd(1M)NAMEnfsd - NFS daemon
SYNOPSIS
/usr/lib/nfs/nfsd [-a] [-c #_conn] [-l listen_backlog] [-p protocol]
[-t device] [nservers]
DESCRIPTIONnfsd is the daemon that handles client file system requests. Only users
with {PRIV_SYS_NFS} and sufficient privileges to write to /var/run can
run this daemon.
The nfsd daemon is automatically invoked using share(1M) with the -a
option.
By default, nfsd starts over the TCP and UDP transports for versions 2
and 3. By default, it starts over the TCP for version 4. You can change
this with the -p option.
A previously invoked nfsd daemon started with or without options must
be stopped before invoking another nfsd command.
Administrators wanting to change startup parameters for nfsd should, as
root, make changes in the /etc/default/nfs file. See nfs(4).
OPTIONS
The following options are supported:
-a Start a NFS daemon over all available connectionless
and connection-oriented transports, including UDP and
TCP. Equivalent of setting the NFSD_PROTOCOL parameter
to ALL in the nfs file.
-c #_conn This sets the maximum number of connections allowed to
the NFS server over connection-oriented transports. By
default, the number of connections is unlimited. Equiv‐
alent of the NFSD_MAX_CONNECTIONS parameter in the nfs
file.
-l Set connection queue length for the NFS TCP over a con‐
nection-oriented transport. The default value is 32
entries. Equivalent of the NFSD_LISTEN_BACKLOG parame‐
ter in the nfs file.
-p protocol Start a NFS daemon over the specified protocol. Equiva‐
lent of the NFSD_PROTOCOL parameter in the nfs file.
-t device Start a NFS daemon for the transport specified by the
given device. Equivalent of the NFSD_DEVICE parameter
in the nfs file.
OPERANDS
The following operands are supported:
nservers This sets the maximum number of concurrent NFS requests
that the server can handle. This concurrency is
achieved by up to nservers threads created as needed in
the kernel. nservers should be based on the load
expected on this server. 16 is the usual number of
nservers. If nservers is not specified, the maximum
number of concurrent NFS requests will default to 1.
Equivalent of the NFSD_SERVERS parameter in the nfs
file.
USAGE
If the NFS_PORTMON variable is set in /etc/system, then clients are
required to use privileged ports (ports < IPPORT_RESERVED) to get NFS
services. This variable is equal to zero by default. This variable has
been moved from the "nfs" module to the "nfssrv" module. To set the
variable, edit the /etc/system file and add this entry:
set nfssrv:nfs_portmon = 1
EXIT STATUS
0 Daemon started successfully.
1 Daemon failed to start.
FILES
.nfsXXX Client machine pointer to an open-but-
unlinked file.
/etc/default/nfs Contains startup parameters for nfsd.
/etc/system System configuration information file.
/var/nfs/v4_state Directories used by the server to man‐
/var/nfs/v4_oldstate age client state information. These
directories should not be removed.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
┌─────────────────────────────┬─────────────────────────────┐
│ ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
├─────────────────────────────┼─────────────────────────────┤
│Availability │SUNWnfssu │
└─────────────────────────────┴─────────────────────────────┘
SEE ALSOps(1), svcs(1), mountd(1M), share(1M), svcadm(1M), nfs(4), sharetab(4),
system(4), attributes(5), smf(5)
System Administration Guide: Naming and Directory Services (DNS, NIS,
and LDAP)
NOTES
Manually starting and restarting nfsd is not recommended. If it is nec‐
essary to do so, use svcadm to enable or disable the nfs service
(svc:/network/nfs/server). If it is disabled, it will be enabled by
share_nfs(1M), unless its application/auto_enable property is set to
false. See the System Administration Guide: Naming and Directory Ser‐
vices (DNS, NIS, and LDAP), and svcadm(1M) for more information.
The nfsd service is managed by the service management facility, smf(5),
under the service identifier:
svc:/network/nfs/server
Administrative actions on this service, such as enabling, disabling, or
requesting restart, can be performed using svcadm(1M). The service's
status can be queried using the svcs(1) command.
If nfsd is killed with SIGTERM, it will not be restarted by the service
management facility. Instead, nfsd can be restarted by other signals,
such as SIGINT.
SunOS 5.10 27 Apr 2005 nfsd(1M)
