mountd.1m (2010 09)

m
mountd(1M) mountd(1M)
NAME
mountd, rpc.mountd - server for NFS mount requests and NFS access checks
SYNOPSIS
/usr/sbin/rpc.mountd
[-r][
-t n ][-v]
DESCRIPTION
mountd is an RPC server that answers requests for NFS access information and file system mount
requests. It reads the /etc/dfs/sharetab
file to determine which file systems are available for
mounting by which remote machines. See sharetab (4).
nfsd running on the local server will contact
mountd the first time an NFS client tries to access the file system to determine whether the client should
get read-write, read-only, or no access. This access can be dependent on the security mode used in the
remote procedure call from the client. See share_nfs (1M).
The command also provides information as to what file systems are mounted by which clients. This infor-
mation can be printed using the showmount (1M) command.
The
mountd daemon is automatically invoked if
NFS_CORE=1, NFS_SERVER=1, and
START_MOUNTD=1
in /etc/rc.config.d/nfsconf
.
Only superuser can run the
mountd daemon.
Options
The following options are supported:
-l log_file This is an obsolete option. All messages and errors are logged to
/var/nfs/mountd.log
.
-r Reject mount requests from clients. Clients that have file systems mounted will not be
affected.
-tn Specify tracing level n, where n can have one of the following values:
1 Errors only (default).
2 Errors, requests handled by mountd, results, and the names of the main functions
leading to the result
-v Run the command in verbose mode. Each time mountd determines what access a
client should get, it will log the result to the syslog, as well as the names of the main
functions leading to the result.
WARNINGS
If
nfsd is running, mountd must also be running in order to be assured that the NFS server can
respond to requests.
Some routines that compare hostnames use case-sensitive string comparisons; some do not. If an incom-
ing request fails, verify that the case of the hostname in the file to be parsed matches the case of the host-
name called for, and attempt the request again.
If a client crashes, executing
showmount on the server will show that the client still has a file system
mounted. In other words, stale entries may accumulate in /etc/rmtab for clients that crash without
sending an unmount request.
Also, if a client mounts the same remote directory twice, only one entry appears in
/etc/rmtab. Doing
a umount of one of these directories removes the single entry and showmount no longer indicates that
the remote directory is mounted.
AUTHOR
mountd was developed by Sun Microsystems, Inc.
FILES
/etc/dfs/sharetab shared file system table
/etc/rmtab list of all hosts having file systems mounted from this machine
/var/nfs/mountd.log rpc.mountd log file for messages and errors
HP-UX 11i Version 3: September 2010 − 1 − Hewlett-Packard Company 1