showmount(1M)

NAME
     showmount - show all remote NFS mounts

SYNOPSIS
     /etc/showmount [-a] [-d] [-e] [-x] [host]

DESCRIPTION
     Showmount lists all the clients that have remotely mounted a filesystem
     from host (or the local host if host is not given).  This information is
     maintained by the mountd(1M) server on host, and is saved across crashes
     in the file /etc/rmtab.

OPTIONS
     -a   Print all remote mounts in the format hostname:directory where
          hostname is the name of the client, and directory is the root of the
          file system that has been mounted.

     -d   List directories that have been remotely mounted by clients.

     -e   Print the list of exported file systems.  For each file system, list
          the clients given mount access.

     -x   Print the list of exported file systems and all of their export
          options, in the format described by exports(4).  This option
          overrides the -e option.

SEE ALSO
     mountd(1M), exportfs(1M), exports(4)

BUGS
     If a client crashes, its entry will not be removed from /etc/rmtab until
     it reboots and executes umount -a.