How to set up Linux user login timeout (idle time) vi / etc / profile ... export TMOUT = 900

How to set up Linux user login timeout (idle time)

Reprinted Mo negative cold summer ai  finally released on 2019-08-08 15:04:22  reading number 1897  Collect

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VI # / etc / Profile 
... 
Export the TMOUT = 900 # Set the idle time of 15 minutes, seconds; if this line is not directly added to it 
...

vi /etc/profile

TMOUT=18000000000000
export QT_IM_MODULE=fcitx
readonly TMOUT
export TMOUT