Re: nfsd v3 & nfsd v4 server on same host

On Tue, Dec 16, 2025 at 02:49:54PM -0800, Rick Macklem wrote:
> On Wed, Nov 19, 2025 at 5:00 AM Konstantin Belousov <[email protected]> wrote:
> >
> > On Wed, Nov 19, 2025 at 04:40:07AM -0800, Rick Macklem wrote:
> > > On Wed, Nov 19, 2025 at 4:27 AM void <[email protected]> wrote:
> > > >
> > > > Hi,
> > > >
> > > > As subject - is this possible temporarily?
> > > Sure. You will need to configure the NFSv4 bits..
> > > - Add a "V4:" line to /etc/exports (that is needed as
> > >   well as the sharenfs property.
> > > - Either choose to do uids in "strings", which is probably
> > >   the easiest unless you are doing kerberos mounts or
> > >   run nfsuserd (but choose one, not both of these).
> > >   Setting vfs.nfs.enable_uidtostring and vfs.nfsd.enable_stringtouid
> > >   to one and not running the nfsuserd chooses the first case.
> > > - set nfsv4_server_enable="YES" in /etc/rc.conf, but don't set
> > >   nfsv4_server_only
> > >
> > > If you've done the above, do:
> > > # sysctl -a | fgrep vfs.nfsd | fgrep vers
> > > - and you should see minvers set to 2 or 3 and maxvers set to 4
> >
> > Care to add this to the man page, please?
> nfs_server_enable, nfsv4_server_enable and nfsv4_server_only
> are documented in "man rc.conf".
> 
> Are you referring to "man sysctl"?
> (To be honest, none of the NFS sysctls are in it.)

No, I am not referring to any of the individual knobs.  I mean to explain
'how to configure nfsd v3 & nfsd v4 server on same host' since you
already formulated it and I think it is worth adding to a man page.