David Josephsen

David Josephsen is 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, firewalls, and load balancers in support of complex, high-volume networks. He afficher plus authored Building a Monitoring Infrastructure with Nagios, wrote three chapters of Monitoring with Ganglia, and writes the iVoyer systems monitoring column for login magazine. He has been published widely on security, systems monitoring, and spam mitigation topics. afficher moins