Nagios: Building Enterprise-Grade Monitoring Infrastructures for Systems and Networks (2nd Edition)
David Josephsenis the Director of Systems Engineering at DBG, Inc., where he maintains a collection of geographically dispersed server farms. He has more than a decade of hands-on experience with UNIX systems, routers, fi rewalls, and load balancers in support of complex, high-volume networks. In addition to this book, he authored several chapters in the O’Reilly bookMonitoring with Ganglia, and currently writes “iVoyer,” the systems monitoring column for;loginmagazine. Josephsen is just one of many thousands of avid Nagios users.