Memcached is an open-source distributed caching system that stores data like database queries, API calls, and session data in RAM. It helps reduce frequent operations, improving application response time and server resource usage. In this article, you are to install Memcached on Ubuntu 22.04 and configure it to enable secure connections using the SASL (Simple Authentication and Security Layer) mechanism. Before you begin: * Have an [Ubuntu 22.04 server](https://www.vultr.com/servers/ubuntu/). * ......