A system administrator runs a command to list live connections on interactive terminals. Which file supplies the records that reflect these active sessions?
/var/run/utmp
/var/log/lastlog
/var/log/btmp
/var/log/wtmp
The live session utility reads /var/run/utmp, which is updated by login services to track current interactive shells and terminals. /var/log/wtmp holds a historical archive of logins and logouts, /var/log/btmp records failed login attempts, and /var/log/lastlog shows the most recent login for each account rather than ongoing sessions.
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