The YUM security plugin is a package that allows you to search specifically for security patches applicable to a Redhat/Centos server. This functionality comes in very handy when having to cross reference CVEs to Redhat Security Advisories (RHSAs). If you work closely with anyone in an information security role, you already know how vital functionality is.
patching
Patching ESXi 4.1 via the Linux RCLI
Great Balls of Frustration... could the documentation be anymore confusing and convoluted regarding the process of patching an ESX server via the Linux remote cli. No, I am not running windows, and no I am not on the local ESX console, and no I am not running the Vmware Management Appliance, and most of all, no I do not want outdated instructions from 2008. I just want to download some patches to my local linux destop and patch my ESX servers. Specifically I want to install the latest and greatest Qlogic drivers to troubleshoot a SAN connectivity issue that I will probably blog about at a later date. Anyway here is how I did what I needed to do without resorting to using a windows box.