HP-UX Reference (11i v3 07/02) - 1M System Administration Commands N-Z (vol 4)

n
nfsd(1M) nfsd(1M)
NAME
nfsd - NFS daemon
SYNOPSIS
/usr/sbin/nfsd
[-a][-c #_conn][-l
listen_backlog][
-p protocol][-t device][nservers]
DESCRIPTION
nfsd is the daemon that handles client file system requests. Only users with sufficient privileges can run
this daemon.
The nfsd daemon is automatically invoked if
NFS_CORE=1 and NFS_SERVER=1 in the
/etc/rc.config.d/nfsconf
file.
By default,
nfsd starts over the TCP and UDP transports for version 2 and version 3, and over TCP for
version 4, if NFS version 4 is enabled. One 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 make changes (as root user) to the
NFS default file
/etc/default/nfs
, (see nfs(4)). Administrators can either edit this file or use the
setoncenv command to make changes.
Options
The following options are supported:
-a Start a NFS daemon over all available connectionless and connection-oriented tran-
sports, including UDP and TCP. Equivalent to setting the NFSD_PROTOCOL
parame-
ter to
ALL in the NFS default 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.
Equivalent to the NFSD_MAX_CONNECTION
parameter in the NFS default file.
-l Set connection queue length for the NFS TCP over a connection-oriented transport.
The default value is 32 entries. Equivalent to the NFSD_LISTEN_BACKLOG
parame-
ter in the NFS default file.
-p protocol Start a NFS daemon over the specified protocol. Equivalent to the
NFSD_PROTOCOL
parameter in the NFS default file.
-t device Start a NFS daemon for the transport specified by the given device. Equivalent to the
NFSD_DEVICE parameter in the NFS default file.
Operands
The following operands are supported:
nservers This sets the maximum number of concurrent NFS requests that the server can han-
dle. 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.Ifnservers is not specified, the maximum number of concurrent
NFS requests will default to 1. Changing the value of nservers requires stopping and
restarting nfsd. Equivalent to the NFSD_SERVERS parameter in the NFS default
file.
Notes
A directory service that provides service name data base support must have the following service entries in
its database:
nfsd 2049/udp nfs # NFS server daemon (clts)
nfsd 2049/tcp nfs # NFS server daemon (cots)
If the kernel tunable NFS_PORTMON (see nfs_portmon(5)) is set to 1, then clients are required to use
privileged ports (ports < IPPORT_RESERVED) to receive NFS services. This tunable is set to 0 by default.
Use kctune (see kctune(1M)) to set this tunable.
By default, the NFS version 4 server is disabled. In order to enable it you must stop the NFS server. As
root, either use the setoncenv command (see setoncenv(1M)) or edit /etc/default/nfs to set the
NFS_SERVER_VERSMAX parameter to 4.
HP-UX 11i Version 3: February 2007 − 1 − Hewlett-Packard Company 71