05-20-2018
Hmmmm....ok......can you elaborate on why you are asking this question please.
Are you trying to make a NAS accessible from a large number of servers concurrently? What problems are you facing?
Certainly
mountd and
lockd can be configured to use a different port but now I'm not sure that is relevant to your question.
IBM How to force mountd/lockd to use a specific port. - United States
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LEARN ABOUT NETBSD
mountd
MOUNTD(8) BSD System Manager's Manual MOUNTD(8)
NAME
mountd -- service remote NFS mount requests
SYNOPSIS
mountd [-dN] [-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 Network File System Protocol Specification, RFC 1094, Appendix A and NFS: Network File System Version 3 Protocol
Specification, 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. Some operating systems (notably Mac OS X) require this option.
-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.
BSD
November 2, 2011 BSD