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Re: Call for Community Feedback: Retiring IETF FTP Service

"Theodore Y. Ts'o" <tytso@mit.edu> Tue, 17 November 2020 22:47 UTC

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Date: Tue, 17 Nov 2020 17:47:52 -0500
From: "Theodore Y. Ts'o" <tytso@mit.edu>
To: Keith Moore <moore@network-heretics.com>
Cc: ietf@ietf.org
Subject: Re: Call for Community Feedback: Retiring IETF FTP Service
Message-ID: <20201117224752.GA538542@mit.edu>
References: <a8bdd67a-13ea-4433-aa38-9cfd48ea28da@network-heretics.com> <0e875497-9986-a0d9-8354-3eac26b7f882@nostrum.com> <a02e15f2-34fb-4124-7ba0-c0ee0070b39f@network-heretics.com> <6a29096e-c76e-9bde-388c-bf411b235346@nostrum.com> <6ff3c8a8-57c9-a278-51ce-ce24fd2dfc0e@network-heretics.com> <01RS3W7DNPHA005PTU@mauve.mrochek.com> <17A1F2FA-CFDB-4775-8E50-A7842E45F5A7@cable.comcast.com> <3b47a817-0884-2379-6654-cd8d6c2d914b@htt-consult.com> <fcd7505d-f21d-5504-a3fa-e87ea222ac11@nostrum.com> <41d6f9eb-20a7-4547-859e-2eef5aedd3b2@network-heretics.com>
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On Tue, Nov 17, 2020 at 04:51:50PM -0500, Keith Moore wrote:
> On 11/17/20 4:32 PM, Adam Roach wrote:
> 
> > 
> > It could be tuned up a bit by asking the tools team to turn
> > "Last-Modified"/"If-Modified-Since" header handling on for
> > https://www.ietf.org/ (which would make the command above act
> > substantially more like rsync).
> 
> Last-Modified (at least) should be regarded as absolutely essential.  Again,
> these dates are sometimes important for patent litigation purposes.
> 
> (It would be worth keeping FTP for that reason alone if the HTTP server
> doesn't support Last-Modified)

Whether those dates are returned by http or ftp, they're going to be
trivially foreable, and I suspect that for the purposes of patent
litigation, things like the Internet Archive and other mechanisms such
as personal e-mail archives plus the sworn testimony from owner of
said e-mail archive.

					- Ted

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