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Mainframe FAQ

Last Updated: May 12, 2021 8:39:55 AM PDT
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Expand section User IDs and passwords

How do I get access to the mainframe?
Read the directions for getting access to UC San Diego Business Systems.
Why can't I log in when I get the message, "CKNC0024-5 Password invalid"?
The password you entered was incorrect or no longer valid. Attempt to reset your business systems password. If you're still having problems contact your Departmental Security Administrator (DSA) or the IT Services Help Desk, (858) 534-1853.
Why can't I log in when I get the message, "CKNC1613-5 You have entered an invalid user ID or your access has been revoked"?

One of the following reasons may apply:

  • Your password has expired, perhaps because you haven't accessed the mainframe within a 100-day period.
  • You entered an incorrect user ID.
  • You entered your password incorrectly three times in a row.

You may reset your business systems password.

Expand section Printing

How do I print from the mainframe?
You can print from the mainframe by following these instructions for IFIS and ISIS. You can also print from business systems like the Link products.
How do I set up a printer to print from the mainframe?

A number of printers on the main campus and at SIO and Hillcrest print from the mainframe. Check with your desktop support person to see if you can use one of them.

If not, you can request a remote printer be setup by sending an e-mail to acthelp@ucsd.edu with the IP address of the printer and its physical location (building, room number). Once a remote printer has been setup, it will be designated a 'U' number (U123, U678, etc.). If you encounter issues with the printer after it has been setup. You can send an email to acthelp@ucsd.edu, along with the printer U number and the issue can be researched.

Expand section Access

When can I access the mainframe?
Check the Business Systems Hours & Downtime for the mainframe.
Do I need special software?
Yes, you'll need Secure System Access, VPN connectivity (for off-campus access) and download TCP/ TN3270 software to access ACT Systems.
Where can I find the TCP/TN 3270 program on my computer?
Look for this image TCP/TN 3270 on your PC desktop or TCP 3270 in your PC folder.

Expand section Problems

Why do I get an "Unable to resolve host address for hubble.ucsd.edu" error message?
Either the network or the mainframe is down. Contact your desktop support person or the IT Services Help Desk at (858) 534-1853.
Why do I get an "Unable to resolve host address for 127.0.0.1.ucd.edu" error message?
Make sure Stunnel is running. Call your desktop support person, or the IT Services Help Desk at (858) 534-1853.
What can I do when I experience system problems?

Contact the ITS Service Desk, (858) 246-4357 or ext. 6-HELP, with the following information:

  • Applications you're having trouble with (e.g., IFIS, ISIS, PPS)
  • Screen name where the problem occurred
  • Related error code
  • User ID
  • The entire error message text
If you're unsuccessful after trying the strategies above, contact the ITS Service Desk, (858) 246-4357 or ext. 6-HELP, for an update on the mainframe/ systems status.