Only allow one login session to be active at a time
128424
Limiting sessions to one IP at a time
41491
Make sure only a single instance of a program is running
34997
Multiple applications using same login database logging each other out
85758
Putting a session in a if and else statement
95722
Disable remote logon but still allow su to same user
76815
Best option for Session management in Java
4980
One login for all the SE sites
157380
How can I create automatically expiring user accounts?
138231
How do I temporarily disable applications from starting up at login?
134268
Audit Login and Logout
14961
Please stop disrespecting my wishes by logging me in where I've explicitly logged out
8637
Add "network wide logout" functionality
30357
session protection
108121
Sharing the same `ssh-agent` among multiple login sessions
128068
How can I enable multiple users login at a time in remote system?
20941
How to run multiple user X sessions on the same computer, at the same time?
134979
Multiple simultaneous browser sessions