I can’t believe I haven’t talked about object-groups yet.  I had a whole other blog entry written up, and, when I went to link things over, I realized I couldn’t find an intro to it.  Here it goes.

Welcome to the modern world.  A world of wonder.  A world of quickly-advancing technology.  A world where clusters of machines sit behind load balancers for scalability and availability.  A world where those clusters need access to other clusters.  A world where your firewall rulebase gets so big that it’s unreadable without some help.