This book covers UNIX and Linux server system administration topics not extensively covered elsewhere. Included are discussions on PXE, Diskless Workstations, Automatic Installations, Serial Consoles, Bridges (and firewalling bridges), RPM and APT-RPM, cfengine, the Simple Event Correlator (SEC), and the Performance CoPilot (PCP). Also included are talks on commands such as iperf, arping, atop, and others.