rpc.mountd (8)
NFS mount daemon
SYNOPSIS
/usr/sbin/rpc.mountd [ options ]
DESCRIPTION
The
rpc.mountd
program implements the NFS mount protocol. When receiving a MOUNT
request from an NFS client, it checks the request against the list of
currently exported file systems. If the client is permitted to mount
the file system,
rpc.mountd
obtains a file handle for requested directory and returns it to
the client.
Making file systems available to NFS clients is called
exporting .
Usually, a file system and the hosts it should be made available to
are listed in the
/etc/exports
file, and invoking
exportfs -a
whenever the system is booted. The
exportfs (8)
command makes export information available to both the kernel NFS
server module and the
rpc.mountd
daemon.
Alternatively, you can export individual directories temporarily
using
exportfs 's
host : /directory
syntax.
For every mount request received from an NFS client,
rpc.mountd
adds an entry to the
/var/state/nfs/rmtab
file. When receiving an unmount request, that entry is removed.
user level part of the NFS service.
However, this file is mostly ornamental. One, the client can continue
to use the file handle even after calling
rpc.mountd 's
UMOUNT procedure. And two, if a client reboots without notifying
rpc.mountd ,
a stale entry will remain in
rmtab .
OPTIONS
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