how to enable linux support users for a certain no of hrs using php -

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i want enable linux support user 8 hours , lock login automatically.

front end built using php , below have used ..

// enabling support shell_exec("sudo passwd -u support"); // time expire $date = date("h:i:s a", strtotime('+8 hours')); $timeat = substr($date,0,2).substr($date,9,11); // cron setup using 'at' command  shell_exec("sudo @ ".$timeat." -f /path/to/cron/disablesupport.php");

disablesupport.php has below code.

//locking support shell_exec("passwd -l support");

this didn't work. please fix , me solution.

revise php.ini file custom time configuration.

for ubuntu, /etc/php5/apache2/php.ini file should revised.

change line: session.gc_maxlifetime=28800

(28800 seconds = 8 hours)


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