Before you begin either process make sure you have:

• Your server license (this is located in the license section of the dashboard).
• Full operating system access to both servers.
• A matching version of Kerio Connect is installed on both servers (old versions can be obtained from download.kerio.com).
• A means of transferring data, either using a portable storage device or some form of network file transfer such as FTP or SCP.

1. On the source server, perform a backup. For more information refer to Configuring backup in Kerio Connect.
2. Copy the backup files to the target server,
3. On the target server, perform data recovery. For more information refer to Data recovery in Kerio Connect.
4. After the recovery is complete, modify the mailserver.cfg file to use the appropriate paths on the target operating system. For more information refer to Editing the configuration to use the correct system paths.

Kerio Connect is installed in the following location:

1. In the Kerio Connect installation directory, locate the following files and folders:

• mailserver.cfg - Stores Kerio Connect configuration
• users.cfg - Stores users, groups, and aliases
• sslcert - Directory containing the private key used in SSLSecure Sockets Layer - A protocol that ensures integral and secure communication between networks. connections
• settings - Directory containing specific settings such as SMTPSimple Mail Transport Protocol - An internet standard used for email transmission across IP networks. rules and images for domain footers

2. On the target server, stop Kerio Connect, then copy and replace these items from the source server.

3. Locate your mail store on the file system of the source server. This directory is defined in the administration under the Configuration > Advanced Options > Store Directory tab.
4. Copy the mail store directory to the desired location of the target server.
5. After copying the configuration and mail store data, modify the mailserver.cfg file to use the appropriate paths on the target operating system. For more information refer to Editing the configuration to use the correct system paths.

If the target system is based on a different operating system or has a different directory structure, you must edit the mailserver.cfg configuration file in a text editor to define the correct system paths.

The following variables contain a system path:

On the target server, start the service, and log in using the administrator account used to access the source server. If the service fails to start, it may be caused by incorrect definition of the store directory. In that case, verify that the location of the store directory is accurately configured in the mailserver.cfg file, as described above.

• Register your license on the new server
• If you are authenticating users to a directory service, make sure to join the server to the domain.
• If your server's IP addressAn identifier assigned to devices connected to a TCP/IP network. has changed, make sure to update all relevant DNSDomain Name System - Enables the translation of hostnames to IP addresses and provides other domain related information. records
• If you are moving from Mac OS X to a different OS, you must rebuild accounts that use Exchange Web Services (EWSExchange Web Services - Web services that enables applications to communicate with an Exchange server.). This means you need to remove and re-create the account that is set up as an Exchange Account in the email client application (e.g Outlook, Apple Mail). This does not apply to iOS and Android devices as they only use IMAPInternet Message Access Protocol - One of the two most commonly used Internet standard protocols for e-mail retrieval, the other being POP3. or ActiveSync.