Login Service Usage Guidelines

What You Can and Cannot Do

Use the Login machines to run:

  • Interactive programs that require active participation from users, such as pine, or vi
  • Compilers, such as cc and gcc, and other programming and debugging tools
  • Programs to connect to other services, such as ssh
  • Small programs that do not interfere with the other applications running on the ITS Login Service

Do not use the Login machines to run programs that:

  • Need to run overnight
  • Attempt to elevate your privileges on the host machine in an unauthorized manner
  • Attack other machines connected to the Internet in terms of either denying service or elevating privileges
  • Spam, or send a large number of unsolicited e-mails
  • Donate U-M processor time to non-affiliated groups (No distributed.net or SETI@home clients)

System Administrators Reserve the Right to:

  • Stop any job that is using too much of the computer's resources, such as
    • A program taking longer than 10 minutes to adjust
    • A program that is still running after you have logged out
    • A program having an adverse impact on other users or on machine performance
  • Remove any files or data left in either the /tmp or /var/tmp directories
  • Stop any program running on a Login machine that provides services to unauthorized users