Re: Telnet and FTP to Historic

Michael Richardson <mcr+ietf@sandelman.ca> Wed, 02 December 2020 17:56 UTC

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From: Michael Richardson <mcr+ietf@sandelman.ca>
To: Carsten Bormann <cabo@tzi.org>, Adam Roach <adam@nostrum.com>, IETF Discussion Mailing List <ietf@ietf.org>
Subject: Re: Telnet and FTP to Historic
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Date: Wed, 02 Dec 2020 12:56:48 -0500
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Carsten Bormann <cabo@tzi.org> wrote:
    > On 2020-12-02, at 17:38, Adam Roach <adam@nostrum.com> wrote:
    >>
    >> If it helps: I've yet to find a system that lacks both telnet and nc (netcat) out of the box.

    > Indeed, interestingly, for me, nc replaces the existing usages of both
    > telnet and ftp (i.e., unencrypted and third-party transfers).  Except
    > that my brain cannot teach my fingers to stop typing “telnet”, so I
    > usually have that installed in some form (e.g., inetutils) as well.

neither nc or telnet is installed on Ubuntu or Windows or openwrt by default now.
I don't think it's installed by default on RASPbian either.
(Hard for me to double check, as naturally, I wind up installing both immediately)

Like Carsten, I have difficulty not using telnet when I should be using nc.
(But, I don't find I should have -t on by default, which is why nc rather
than telnet.  Ah, I remember back writing that proxy-telnet...)

I have on numerous times found that I can't update systems because the update
server insists that I use https, and that I use TLS 1.2 or better, but the
system in question is too old, and it's exactly the TLS 1.2 code that I'm
trying to get.

Should systems be updated more often? Sure, but try telling that to a VM
which has been suspended for a year.  Or any kind of embedded system which
should never be upgraded while in operation.

--
Michael Richardson <mcr+IETF@sandelman.ca>   . o O ( IPv6 IøT consulting )
           Sandelman Software Works Inc, Ottawa and Worldwide