Katello is an open source tool that provides patch, release and lifecycle management for Foreman as a plugin. This allows repositories to be synchronized and stored in certain software volumes. Via these software versions the different lifecycles (e.g.>test >) in an infrastructure can be supplied with different patch versions. Using Foreman’s GUI, once the servers are connected, the list of all installed packages can be viewed, and packages can be installed/upgraded or removed. In addition, Errata information can be used and matched to host package lists to illustrate which hosts are affected by current CVE-listed vulnerabilities-and patched them from the surface Can. Katello is also part of the entertainment product orcharhino.