January 5, 2006 MOUNTD 8

### NAME

mountd - service remote NFS mount requests

### SYNOPSIS

mountd [-dNn] [-P policy] [-p port] [exportsfile]

### DESCRIPTION

mountd is the server for NFS mount requests from other client machines. mountd listens for service requests at the port indicated in the NFS server specification; see RFC 1094, Appendix A and Appendix I.

Options and operands available for mountd:

-d
  Enable debugging mode. mountd will not detach from the controlling terminal and will print debugging messages to stderr.

-N
  Do not require privileged ports for mount or NFS RPC calls. This option is equivalent to specifying ``-noresvport -noresvmnt'' on every export. See exports(5) for more information.

-n
  This flag used to indicate that clients were required to make requests from reserved ports, but it is now no longer functional. It is only provided for backwards compatibility. Requests are checked for reserved ports on a per-export basis, see exports(5).

-P policy
  IPsec policy string, as described in ipsec_set_policy(3). Multiple IPsec policy strings may be specified by using a semicolon as a separator. If conflicting policy strings are found in a single line, the last string will take effect. If an invalid IPsec policy string is used mountd logs an error message and terminates itself.

-p port
  Force mountd to bind to the given port. If this option is not given, mountd may bind to every anonymous port (in the range 600-1023) which causes trouble when trying to use NFS through a firewall.

exportsfile
  The exportsfile argument specifies an alternative location for the exports file.

When mountd is started, it loads the export host addresses and options into the kernel using the nfssvc(2) system call. After changing the exports file, a hangup signal should be sent to the mountd daemon to get it to reload the export information. After sending the SIGHUP (kill -s HUP `cat /var/run/mountd.pid`), check the syslog output to see if mountd logged any parsing errors in the exports file.

After receiving SIGTERM, mountd sends a broadcast request to remove the mount list from all the clients. This can take a long time, since the broadcast request waits for each client to respond.

### FILES

```/etc/exports`
  the list of exported filesystems
```/var/run/mountd.pid`
  the pid of the currently running mountd
```/var/db/mountdtab`
  the list of remotely mounted filesystems

### SEE ALSO

nfsstat(1), nfssvc(2), exports(5), nfsd(8), rpcbind(8), showmount(8)

### HISTORY

The mountd utility first appeared in 4.4BSD.