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About Tony Bourke

Tony Bourke is a private consultant specializing in Unix administration, networking, and load balancing. Originally published at http://www.oreillynet.com/pub/a/network/2002/09/09/bourke.html.
Have Your Layer Cake and Eat It Too

Long ago, in the world of networking, network devices had specific purposes in a given infrastructure. Different devices, each performing a separate function, worked harmoniously in a well-oiled network machine. A set of well-established players in each genre (firewalls, routers, switches) made easy the system administrator’s job of deciding which products would best serve his or her network installation. However, that has all changed.