Questions tagged [session]
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What does /proc/PID/sessionid mean on a Linux machine?
On an Ubuntu Linux 20.04, cat /proc/$$/sessionid shows 3, and on an openSUSE 15.5, it shows 2.
The 3 or 2 definitely has different meaning that the session ID value (SID) from getsid(0), then what does it mean?
Jimm Chen
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