Configuring Kolab with setup-kolab

After having installed kolab (following the appropriate install guide in this knowledge base) it needs to be configured. The script ‘setup-kolab’ is distributed with the out-of-the-box installation and is taking care of the basic configuration, but a successful configuration is depending on the environment that Kolab is installed into. Many aspects and variables will have […]

Relay Outbound Mail Through a Third Party, Using Postfix

John Doe administers a Kolab Enterprise installation, but the complete environment for what we’ll call “example.com” involves server systems hosted by third parties — such as a web server for the corporate website, and maybe other application servers. This article outlines the possible solutions to one or more of these environments being restricted somehow.

Configure DKIM Signing and Verification Using Amavis

Domain Keys Identified Mail (DKIM, or Mail Identified through Domain Keys) is a cryptographic technology using which domain owners publish the public keys of public-private key pairs used for signing email messages. This allows third parties to establish a degree of confidence about the message originating from designated and duly authorized infrastructure. In other words, […]

Reference Architecture for MariaDB Galera Cluster

A MariaDB Galera Cluster is the recommended deployment for a scalable database server architecture, and this article outlines what it looks like, and what its benefits are. Following this reference architecture will result in a load-balanced cluster, with high-availability achieved through load-balancing.