Ultrix 1.2 MAXUSERS

[Melinda Shore]

In article <48900 at felix.UUCP> casey at admin.cognet.ucla.edu (Casey Leedom) writes:
>  This information is recorded in the first byte of /upgrade.  If zero,
>your system will support more that 64 users.  If non-zero, say N, your
>system won't let more than N users log on.

Close.  /etc/license does check /upgrade, but /upgrade is *not* used to
limit the number of logins.  There's a kernel variable that stores the
number of users allowed on the system simultaneously, and it's checked
during login (through the use of a standard system call, "enhanced" by
Digital).

BTW, this is for Ultrix 2.0 and higher - Ultrix 1.2 handles login
limits differently.
-- 
Melinda Shore                                    shore at ncifcrf.gov
NCI Supercomputer Facility              ..!uunet!ncifcrf.gov!shore