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About Mainframe Logging

 
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Gnanas N

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Joined: 06 Sep 2007
Posts: 788
Location: Chennai, India

PostPosted: Thu Dec 06, 2007 1:59 pm    Post subject: About Mainframe Logging
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I am using TN3270 Plus as Terminal Emulator to connect to Z/OS Server.

I use Mouse Select and CTRL + C to copy some contents. So, can this be logged on Mainframe Server?

I want to know when I press CTRL + C, will a request go to Manframe Server from my Terminal?

And What are the keys not involved to send a requset to Server when We press?

Please clarify me.
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murmohk1

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Joined: 29 Jun 2006
Posts: 1439
Location: Bangalore,India

PostPosted: Thu Dec 06, 2007 2:50 pm    Post subject:
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Gnanas,

Quote:
I want to know when I press CTRL + C, will a request go to
Manframe Server from my Terminal?

No.
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Gnanas N

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Joined: 06 Sep 2007
Posts: 788
Location: Chennai, India

PostPosted: Thu Dec 06, 2007 2:57 pm    Post subject:
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Thanks Murali.

And What are the keys not involved to send a request to Server when We press on Terminal?
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dick scherrer

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Joined: 23 Nov 2006
Posts: 19270
Location: Inside the Matrix

PostPosted: Thu Dec 06, 2007 10:06 pm    Post subject:
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Hello,

IIRC TN3270 provides a keyboard mapping feature.

If you look at the current keyboard mapping, you can see which pc keys (or combinations) cause which 3270 actions.
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Douglas Wilder

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Joined: 28 Nov 2006
Posts: 305
Location: Deerfield IL

PostPosted: Thu Dec 06, 2007 10:19 pm    Post subject:
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I am not sure what you are asking, but CTRL - V can be used to paste onto the TN3270 screen then the enter key may be used to transmit what you pasted to the Mainframe. CTRL - C only copies from the screen to the windows clipboard, nothing is transmitted to the mainframe when this is done.
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stodolas

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Joined: 13 Jun 2007
Posts: 632
Location: Wisconsin

PostPosted: Thu Dec 06, 2007 11:06 pm    Post subject:
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Just a guess, but the underlying requirement is to prevent someone from copying data from their mainframe screen.

The CTRL-C sends no information whatsoever to the mainframe. This can't be done or monitored by anything on the mainframe side. You would need an emulator that TN3270 emulator that disables the copy function. But then you also need to disable the default screen shot keys and then check for any other screen capture software on the machine and disable that too. Then you need to have someone walking around with a baseball bat to hit people with if they pull out a camera enabled cell phone or a camera of any type.

I am guess on this, but CTRL-V doesn't send anything until you hit enter or there is an enter embedded in your pasted string. You can't prevent this either with mainframe code because the mainframe likely sees this as someone typing quickly.

I'm full of guesses today.
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dick scherrer

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Joined: 23 Nov 2006
Posts: 19270
Location: Inside the Matrix

PostPosted: Thu Dec 06, 2007 11:34 pm    Post subject:
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Hello,

If folks with this type of question would explain what it is they are actually interested in, we would be able to provide far better replies. . .

For one of my guesses, i'll quess that part of the question concerns identifying the "interrupt" keys. The 3270 working in block mode (rather than character mode) needs an interrupt to actually communicate wth the host.

On all of the 3270 emulators i've used, the interrupt keys are identified in the key mapping. . . On many emulator, not every key from a "real" 3270 is defined.
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