Date: Mon, 12 Dec 2016 19:19:40 +0100 From: Edward Tomasz =?utf-8?Q?Napiera=C5=82a?= <trasz@FreeBSD.org> To: Rick Macklem <rmacklem@uoguelph.ca> Cc: "freebsd-fs@freebsd.org" <freebsd-fs@freebsd.org>, "jmader2@gmu.edu" <jmader2@gmu.edu> Subject: Re: what should mountd do for NFSv4 only servers? Message-ID: <20161212181940.GB8058@brick> In-Reply-To: <YTXPR01MB018941ACF0BFD1E31D60C98CDD990@YTXPR01MB0189.CANPRD01.PROD.OUTLOOK.COM> References: <YTXPR01MB018941ACF0BFD1E31D60C98CDD990@YTXPR01MB0189.CANPRD01.PROD.OUTLOOK.COM>
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On 1211T1923, Rick Macklem wrote: > I recall an email discussion with Jason Mader w.r.t. what the behaviour of > mountd(8) should be when an NFSv4 only server is being run. > (I seem to have misplaced the email, so if I recall incorrectly, I apologize and hope > that Jason will correct me.;-) > > mountd(8) serves the Mount protocol, which is related to NFSv2 and NFSv3, but has > nothing to do with NFSv4. > - At first glance, that would suggest that mountd(8) shouldn't serve Mount protocol > RPCs at all for a NFSv4 only server. > However, this would imply that "showmount -e" would not work. > I recall that Jason felt that "showmount -e" is useful, at least when run locally on > the server. > > As such, how does having mountd(8) service Mount protocol requests only from localhost > (127.0.0.1 and ::1) and only handle the Export RPC, when the NFS server is configured > as NFSv4 only via vfs.nfsd.server_min_nfsvers == 4? > > Any comments, concerns or other ideas please, rick Another thing the mountd is useful for is the "-hosts" autofs map. Restricting mountd to the localhost would break it.
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