Memcached is an open-source, distributed, in-memory object caching system. It is mainly used for speeding up dynamic web applications by storing chunks of data from the results of database calls and page rendering. In this guide, we will install and secure Memcached on CentOS 7. ##Installing Memcached First, update the system: yum update -y Next, install the official Memcached package `memcached`; as well as `libmemcached`, which provides several utilities to work with Memcach......