[Info-vax] Reverse telnet to a terminal emulator?

[Snowshoe]

On 7/19/2011 7:47 AM, VAXman- @SendSpamHere.ORG wrote:
> In article<j02l2e$2ha$1 at speranza.aioe.org>, Snowshoe<no at spam.please>  writes:
>> Is there any such thing as VTxxx-compatible terminal server software
>> that runs on a PC that, instead of actively connecting to a host via
>> telnet, is "passive", it waits until something connects to it?  Once a
>> host connects to it, it acts like a regular VTxxx terminal.  My idea is
>
> There are some here, myself included, would argue that there is no
> PeeCee software that acts like a regulat VT terminal.

In my case, it doesn't really matter.  There is little if any VTxxx 
advanced features. Currently they are using Reflections on a PC 
connected to a hardwired RS-232 link.


>> for VMS to reverse-telnet to it. (TELNET>  CREATE_SESSION 10.9.8.7 23 100
>> creates TNA100: on host at IP address 10.9.8.7 port 23) This is to
>> replace a hardwired terminal that doesn't log in, but an application
>> currently allocates it and uses it for part of its operator interface.
>>
>> If the answer is "no", an alternative is for someone to use ordinary
>> terminal server SW to telnet into the VMS host and run a do-nothing
>> program that goes into a permanent LEF state, and VMS finds its TNAx
>> device and writes to it, but this is one step I'd rather not have the
>> operators do.
>
> Sounds like a good job for a pseudo-terminal application.  You connect
> your PeeCee with the not-ready-for-prime-time VT terminal emulation to
> its PTD$READ side and your application talks to its PTD device.  It's
> a very simple thing to program.

I have done this in the past, sort of. (swiped 
SYS$EXAMPLES:ALPHA_LOGGER.C and changed the non-pseudoterminal portion) 
  The pseudoterminal part is actually strange code if you have to tamper 
with it, but I didn't.