Background - hardware
• User interface devices to system
– Mainframe
• Text mode only
• Command-line (text mode) interface
• “Some” menus available (NOT a GUI)
– PC
• All points addressable (APA) interface
• True GUI
• Command line interface in text mode window only
– (the DOS command prompt window)
Background – software - 1
• Accessing VM (2 non-GUI methods)
1. Via TN3270 (the Mocha program)
• Command-line (text mode) interface
• Uses special hardware characters to position data
– Echoed commands/responses not scrollable
– Command input
2. Via putty or SSH
• Command-line mode interface
• No use of 3270 h/w except keyboard re-mapping
• Echoed commands/responses ARE scrollable
Background – software - 2
• Accessing your V.M. GUI method
– V.M. must already be running
– VNCSERVER must be running too
– Provides full GUI in a Window
– Available from both Windows and Linux
Booting a system
• Log in to VM using TN3270 client (Mocha)
– Automatic profile allows selection of a
VIRTUAL MACHINE (V.M.)
– CMS is the default,
– Set up by system admin
– #CP I CMS
• VM command, forces re-boot of CMS
• Equivalent of PC’s power-on boot sequence
• Same as logging on (above)
– Green menu (from a Linux boot-up script)
• Allows selection of LINUX kernel
Logging in to VM
from on-campus
• Start a TN3270 (Mocha) client
– Downloadable from BU computing services
• Connect to
BINGTZ1.CC.BINGHAMTON.EDU
• Login as TJWnnn (your VM account)
– Passwords as found on the grade calculator
Logging in to VM
from off-campus
•
•
•
•
•
Open a browser
Go to SSL.BINGHAMTON.EDU
Click on the Network Connection
Close the browser
Login to the network
– with PODS or BGM userid & pw
• Network connection menu auto-closes
• Continue procedure as “on-campus” on
slide 1
Logging in to Linux
from on-campus
• Login to CMS (as previously discussed)
• Watch the text on the screen CAREFULLY
– At the prompt, type a “1” to BOOT Linux and wait for
the login prompt, then either
• Enter “#CP DISC” , press “Enter” and close the 3270 window
OR
• Just close the 3270 window
• Start an SSH session (e.g.; Putty)
• Connect to TJWnnn.cc.binghamton.edu
nnn is your number
• Login as root (pw as discussed in class)
Continued…
Continue here to start the GUI
• Enter: vncserver
• Close the Putty or TN3270 window
(don't type anything)
• You MIGHT be asked to create a
password. Make up a NEW one. It is for
the VNC interface.
• Connect again (via TightVNC) to:
TJWnnn.CC.BINGHAMTON.EDU
• Use the vnc password you created above
Linux login
• Start the Remote Connect, if needed
• Login as root at the “tjwnnn login:” prompt