Biography Michael Stahnke began working with Unix in the late 1990s. After getting a CS degree from Ball State in 2002, he quickly found his passion in Linux administration and automation. He has worked with Fortune 100 companies, and several open source projects. Michael has concentrated on Identity Management as well security integration into administration and automation processes. In 2005, Michael authored Pro OpenSSH for Apress Publishing. Michael also joined the Fedora project in that year. Today he (co)maintains about 30 packages, and is an active member on the Extra Packages for Enterprise Linux (EPEL) steering committee. He also contributes to the Spacewalk project, the Ruby special Interest Group, and several other facets of the Fedora Project. In 2008, Michael moved to a leadership position on his Unix and Virtualization team at Caterpillar. Michael also works as an independent contractor for various technology organizations in Nashville, TN. Proposal Do you maintain packages internally across several RHEL Versions and architectures? If you do, are you using mock? Mock is a tool designed to help ease the building of rpm packages across versions and architectures. It is also part of the tool-chain used by Fedora package maintainers and works in business context perfectly. In this Birds of Feather demonstration and discussion, Michael Stahnke will discuss and demo mock building rpms, signing them and pushing them to a yum repo or spacewalk/rhn channel.