This book covers UNIX and Linux server system administration topics not extensively covered elsewhere. Included are discussions on PXE, Diskless Workstations, Automatic Installations, Serial... More > 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.< Less
screen is a terminal multiplexor or a virtual terminal manager: it provides for multiple terminal screens from wherever you are - and allows you to put your terminals into the background in order to... More > pick up later, right where you left off.
This is a comprehensive introduction covering virtually everything in the GNU Screen Manual, as well as explaining things clearly and completely.< Less