Basic TJW Linux Connection

Here is the basic connection process: 1. Download and install the mtn3270 program from HTTPS://SSL.binghamton.edu a. Go to the link labeled BU FTP Site b. Click on Windows, then Internet c. Mtn3270 will be in the list you see d. When you download the mtn3270 program, you MUST change its properties! Right-click on the program’s name, click on “properties” and in the window, scroll the “target” name to the right and CHANGE “bingtz1” to “bingtjw”. 2. Connect via 3270 to BINGTJW.cc.binghamton.edu 3. Type 1 to boot Linux 4. Press F10 or wait 30 seconds for Linux to boot 5. Keep clearing the screen (using the “clear screen” command on the menu bar) until you see the login prompt. The prompt looks like this: TJWnnn login: 6. DO NOT LOGIN!!! Type these 2 commands (including the # signs a. #cp set run on b. #cp disc 7. You will get an error message saying the connection is lost. That’s OK 8. CLOSE THE 3270 Window. 9. Re-connect with SSH or Putty to TJWnnn.cc.binghamton.edu (where, TJWnnn is YOUR TJW userid from my grade tracker.)

You do not EVER have to use the 3270 interface again, until the last 2 projects (or if the TJW machine loses power). It’s like powering up a REAL machine. Once it’s running, you don’t touch the power button again.

NOTE: the 3270 interface DOES NOT UNDERSTAND the CTL, ESC and ALT keys in combination with the letter keys or by themselves. So if you get into vim, vi or nano, etc. YOU CAN’T GET OUT!!!! Those programs all use things like CTL-X to exit and the 3270 interface only sends the X, not the combo. The only way to get out of such a trap is to virtually “power off” your Linux system using the CP command: #cp I cms (Don’t forget the # sign. It is PART OF THE COMMAND!)

There is a keyboard mapping for the 3270 interface, where you CAN re-program the ESC key to something the window-buttons do, like “Clear”, but you CANNOT set it to send the actual PC “esc” code, because the 3270 connection does not know what to do with it. Technically, CMS and CP ignore those keys. Special code is in place to allow those keys ONLY when you connect via SSH, Putty and VNC.