Memcached is a high-performance, distributed memory object caching system, generic in nature, but originally intended for use in speeding up dynamic web applications by alleviating database load. Memcached is a very useful also in other cases, than only dynamic web applications. This guide explains howto install Memcached 1.6.32 stable version of distributed memory object caching system on Fedora 41/40/39, CentOS Stream / Red Hat (RHEL) 9/8, Rocky Linux 9.5. Fedora 41/40/39, CentOS Stream 9/8, Red Hat (RHEL) 9/8, Rocky Linux 9.5 has Memcached on default repos, so extra repositories is not needed.