Overview

The procedures of switching from a 32-bit Kerio Connect server version to a 64-bit version differ on both 64-bit Linux and 32-bit Linux.

Note: It is recommended to keep a full backup of your current installation before proceeding.

Prerequisites

Root (administrator) access to the Linux servers

Solution

64-bit Linux

1. Uninstall your current 32-bit Kerio Connect version.
    Debian — apt-get remove kerio-connect;
   
    RPM — rpm -e kerio_connect
2. Install the 64-bit Kerio Connect version.

32-bit Linux

1. Uninstall the 32-bit version of your Kerio Connect from your 32-bit Linux system.
   Debian — apt-get remove kerio-connect;
   RPM — rpm -e kerio-connect
   
2. Move files from the /opt/kerio/mailserver directory on your 32-bit Linux machine to the same directory on the 64-bit Linux machine.
3. Install and start running the 64-bit Kerio Connect application on the 64-bit Linux machine.

Confirmation

Kerio Connect server has now successfully switched from a 32-bit installation to 64-bit.