[nos-bbs] the 'noiac' or 'useiac' can of worms ...

[Boudewijn (Bob) Tenty]

Make the default NOIAC (old behaviour) so that it still can communicate 
with old jnos (and bpq?) installations
over telnet.   Use "mbox  useiac callsign" (autoexec.nos)  for bbs 
installations what use or can use IAC.

Settings should be valid for in- and outgoing telnet sessions for that 
particular bbs call. (This is important)

No more extra options are needed in the forward.bbs.

Everybody happy and it still works with old jnos installations and 
winlink over telnet without any settings
in the autoexec.nos.

73,

Bob VE3TOK


On 16-04-18 11:49 PM, Maiko Langelaar wrote:
>
> By introducing the IAC code into the telnet forwarding portion of JNOS I
> have changed the default behavior of JNOS. For incoming telnet forwards,
> JNOS will now enforce IAC manipulation, there is no way to turn that off
> for particular incoming connections.
>
> All nice and dandy if you're obcm (?) and linfbb, but not great if you
> are BPQ (by the sounds of it) and other JNOS systems :) Before the new
> IAC manipulation code, obcm (?) and linfbb are the ones that suffer, the
> rest seem to be fine. Either way, some software systems will have issues
> with the IAC stuff.
>
> So should we stick to no IAC processing to keep the default behavior
> intact and have a USEIAC option instead of NOIAC option ? Either way
> I will have to have some type of command to flag telnet forwarding
> from specific callsigns logging in, maybe something like :
>
>      mbox useiac ve3tok
> or
>      mbox noiac bpqjoe ...
>
> One problem (from my perspective) is that new JNOS will try and telnet
> forward to an older JNOS that can't handle the IAC manipulation. So now
> I am forced to make sure I specific noiac in my telnet forwards to other
> JNOS systems. JNOS worked without it, so really both sides should not be
> using IAC if you catch my analysis.
>
> It's clear that some software is enforcing IAC manipulation, while other
> software could not care, so there's your can of worms ...
>
> To reiterate, the latest bleeding code that has the 'noiac' option, this
> only applies for outgoing telnet forwards, not incoming.
>
> Also to reiterate, JNOS default behavior now treats compressed 0xff as
> an IAC where before it didn't. Do people see a problem here ? Comments ?
>
> Please give it some serious thought, don't reply right away (I'm going to
> sleep anyways, it's late, I'm tired, and I'm not checking my email for a
> couple of days anyway).
>
> Maiko
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