wayne@helix.nih.gov (Wayne Rasband) (05/07/91)
This is the response I got from our HP sales rep. regarding the number of users allowed to login a series 700 machine. I looks like any number of users can login over the network. Regarding users on the HP700 System, a general counting algorithm is used. The number of users allowed on the system is determined by the version field of the utsname structure. All longins via a tty are counted as a unique user on the system. Therefore, if you have 3 users logged in via tty's and no network logins, there are 3 users on the system. User's logged in via HPterm or Xterm are not counted at all (HPterm and Xterm don't do any counting, thus /bin/login does not count these logins either). User's logged in via Rlogin and Telnet are collectively counted as 1 additional user on the system regardless of the user name. Thus, if there are currently 3 people logged in on tty's, 4 people logged in by Rlogin and 7 logged in via Telnet, login will count 4 users on the system at that time. When a person attempts to login, /bin/login (which is exec'd by Telnet and Rlogin) counts the number of users currently on the system using the rules stated above. It then adds the user currently logging in to the total (using the same rules). If this total is not greater than the licensed limit, then the user is allowed to login. Otherwise, the user gets a message telling them "Sorry, maximum number of users already logged onto the system" --wayne