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Re: TCPMUX (RFC 1078) status

Martin Sustrik <sustrik@250bpm.com> Fri, 16 August 2013 05:19 UTC

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Date: Fri, 16 Aug 2013 07:19:49 +0200
From: Martin Sustrik <sustrik@250bpm.com>
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To: Joe Touch <touch@isi.edu>
Subject: Re: TCPMUX (RFC 1078) status
References: <5205D2FB.8010205@250bpm.com> <52069498.1000604@mti-systems.com> <520D3779.4050106@isi.edu>
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On 15/08/13 22:18, Joe Touch wrote:

>>> Does anyone have any idea how widely is TCPMUX (RFC 1078) protocol used?
>>> Is it the case that there are inetd daemons in TCPMUX mode running
>>> everywhere, or can it be rather considered a dead protocol?
>>>
>>> Specifically, if I implement a new TCPMUX daemon how likely I am to
>>> clash with an existing TCPMUX daemon listening on port 1?
>>>
>>
>>
>> It's in the FreeBSD inetd, among others, but to to my
>> knowledge, nobody actually turns it on. There are
>> probably security issues.
>
> There are semantics issues to; see draft-touch-tcp-portnames-00 for
> information (this is being revised for resubmission shortly, FWIW).

Nice, however, it requires changes to TCP stack, so even if it succeeds 
it won't be a practical option for at least few years to come.

Martin

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