NFS file locking

Bryce Kahle bwkahle at
Fri Jan 14 16:47:22 PST 2005

I've been researching NFS and its file locking capabilities on FreeBSD
and I can't seem to find the answer to my question, so I thought I would
ask it here.

In this document

It mentions this:
"The next option listed here is the rpc.lockd option, which, when
selected, will provide file locking services. This is usually used with
rpc.statd to monitor what hosts are requesting locks and how frequently
they request them. While these last two options are marvelous for
debugging, they are not required for NFS servers and clients to operate

Is rpc.lockd required for fcntl() style locking to work correctly?

Bryce Kahle <bwkahle at>
Systems Administrator - Binary Net

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