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Increase the phpMyAdmin Session Timeout

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When phpMyAdmin is installed, the default session timeout value is too low for many users, making your phpMyAdmin session expire too soon. One could argue that a low session timeout value is a good idea from a security perspective. If you do not think this is an issue, here are a few simple steps that’ll let you change how long phpMyAdmin will keep your session(s) alive.

Open in the phpMyAdmin “root” directory. Look for a line that contains this: $cfg[‘LoginCookieValidity’]. Set the value to the desired number of seconds you want the session to stay alive (3600 = one hour, which is reasonable for most users). If you do not have that line in your file, add it like this:

$cfg[‘LoginCookieValidity’] = 3600;

Don’t forget to save the file, and then login again to phpMyAdmin. You may need to close the browser and re-open your phpMyAdmin URL.

This also assumes that the PHP session garbage collection is set-up accordingly. This can be done in a number of ways:

  • php.ini; add a line (or change an existing) that contains session.gc_maxlifetime = <seconds>
  • Apache configuration; add a line to the appropriate <Directory> block that says “php_admin_value session.gc_maxlifetime <seconds>”
  • (phpMyAdmin); after the previously edited line, add a line with “ini_set(‘session.gc_maxlifetime’, <seconds>);”

The <seconds> above is the same value that you set your variable to in at the beginning of this post, “3600” (sans quotes) in my case. (Some of these methods may or may not work on the server you’re using.)

This isn’t the only way to circumvent phpMyAdmin sessions expiring on you in the middle of that important work; you can, of course, configure phpMyAdmin to have appropriate access directly, thus allowing you to access your MySQL database(s) without entering a username and a password. You’ll find more information about this on the phpMyAdminwebsite.

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