 | | | Telnet & 3270 emulation | Telnet & 3270 emulation 2005-08-03 - By nathan r. hruby
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On Wed, 3 Aug 2005, Ed Wilts wrote:
> On Wed, Aug 03, 2005 at 01:23:55PM -0300, Shaw, Marco wrote:
>>
>> I really don't understand the whole '3270 emulation' bit. I think I am
>> searching for a telnet program that supports 3270...
>>
>> I'm looking for something hopefully packaged with RedHat (Workstation
>> 3.0 actually) to replace some Win32 apps like Procomm Plus, Crosstalk
>> Attachmate, and Exceed HostExplorer.
>
> This is a good question for us old timers...
>
> TN3270 is not quite like any other telnet and most telnet/ssh programs
> don't do TN3270 at all. Remember that on the Linux platform, the
> terminal connection program typically doesn't do emulation, unlike
> Windows where emulation is done by the application (Kermit is a great
> example of the difference here).
>
That's not entirely true. Most of the XBased terminal apps do terminal
emulation of some form, it's just that they tend to choose "xterm" as
their termtype and most modern systems can grok this.
> A google search for "linux tn3270" is a good start and led me to
> http://www.planetmvs.com/tn3270/ which in turn found x3270 at
> http://www.geocities.com/SiliconValley/Peaks/7814/index.html
>
> x3270 appears to be actively maintained.
>
> Thankfully I don't have any IBM mainframes around here but it also means
> that I don't have any personal experience with tn3270 products on Linux.
>
Better yet:
[nathan@(protected) nathan]$ up2date --showall | grep 3270
Password for root:
x3270-3.2.20-4.i386
x3270-text-3.2.20-4.i386
x3270-x11-3.2.20-4.i386
[nathan@(protected) nathan]$
I've used x3270 before to interact with a few mainframe apps. Normally
it's "just worked." I don't know about x3270 supporting scripting,
macros, or SSL. The SSL bit is easily addressed with stunnel.
-n
--
-- ---- ---- ---- ---- ---- ---- ---- -----
nathan hruby <nhruby@(protected)>
uga enterprise information technology services
production systems support
-- ---- ---- ---- ---- ---- ---- ---- -----
"Back in the good old days, we would just look in the system log file to
see what was really going on. The new crowd of Linux users would rather
not have to do that, however; they expect the system to tell them,
politely, that their hardware is on fire and that they are about to deeply
regret not having run any backups since sometime last winter."
http://lwn.net/Articles/140815
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