How to adjust session timeout in Horde webmail on a Plesk for Linux server

Question

How to configure session timeout in Horde webmail?

Answer

Horde session timeout settings are configured within the $conf['session']['timeout'] parameter in the /etc/psa-webmail/horde/horde/conf.php file. By default, it is set to 0, which means sessions stay active until the user logs out:

# egrep ‘*session*.*timeout‘ /usr/share/psa-horde/config/conf.php
$conf[‘session’][‘timeout’] = 0;

To adjust this value:

1. Connect to a Plesk server via SSH.

2. Open the Horde configuration file conf.php in a text editor. In this example, we are using the vi editor:

   # vi /usr/share/psa-horde/config/conf.php

3. Set the $conf['session']['timeout'] parameter to a desired number (in seconds). For example, for 30 minutes (1800 seconds):

   # egrep ‘*session*.*timeout’ /usr/share/psa-horde/config/conf.php
   $conf[‘session’][‘timeout’] = 1800;

4. Save the changes and close the file.

5. Restart Apache to apply the changes:

   • for CentOS/RHEL-based distributions:

     # service httpd restart

   • for Debian/Ubuntu-based distributions:

     # service apache2 restart