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Restrict number of logins allowed for a user

To restrict multiple logins, place the following lines in the users .profile

# Limit number of logins allowed Times_allowed=2 Time_in=`who | grep $LOGNAME | wc -l` if [ $Time_in -gt "$Times_allowed" ] then echo "$LOGNAME is already logged in $Times_allowed times!" exit exec /bin/login fi

Then chmod 444 and chown root .profile

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