The Concise Guide to Xfree86 for Linux is the first book on the market that gives you the expert-level information you need to understand, configure and administer Xfree86 (also referred to as "X"). X provides the infrastructure for graphical environments like KDE and Gnome. This book addresses the high-level information need that has arisen as support personnel are required to troubleshoot and support all facets of Linux. Some of the topics that are covered: Tunneling X through ssh, runtime environment configuration, widget hierarchies, and maintaining the X resource database. This book is aimes at the advanced, more experienced, Linux user to help you get the most out of your X experience. X comprises many different and difficult to understand configuration files. This book tells you what you need to know to troubleshoot and successfully tailor the configuration files to meet your needs.