Introduction OPcache is a built-in bytecode caching engine for PHP that plays a crucial role in enhancing website performance. By storing precompiled script bytecode in memory, it reduces the need for PHP to load and parse scripts on every request, resulting in faster execution times and lower server load. In hosting environments like DirectAdmin, enabling […]

Introduction The disabled_functions directive in php.ini is used to disable certain PHP functions that may pose a security risk (e.g., exec, shell_exec, system, etc.). This is typically used to harden shared hosting environments, such as DirectAdmin In this article we look through the limitations of disable_functions within DirectAdmin and look at a workaround for setting […]

Introduction In this article, we will explain how you can easily migrate your Mailcow instance to another server. In this example, the server operating system CentOS 7 is obsolete and is going to be replaced with RockyLinux 9. Upgrading Existing Mailcow Upgrading your existing Mailcow instance is important and minimises the risk of a failed […]