On 8/15/2013 10:19 PM, Martin Sustrik wrote:
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.
There have been other stack changes that have been deployed fairly quickly.
However, that's not relevant to the reason I cited the doc; the doc has
a discussion of TCPMUX and its problems.
Joe