Unix Unleashed, Third Edition is written with the power user and system administrator in mind. This book will help the reader understand the nuances of the major Unix variants including SVR4, HP-UX, Solaris, AIX, BSD, IRIX, SunOS, and Linux. It will help the reader decide which Unix shell works best for their particular situation. Other topics such as Kernel Configuration, Networking, User Administration, and File Management are covered extensively for the administrator who wants a variety of options to choose from for best performance. The book also provides in-depth coverage of configuring and optimizing mail, DNS, HTTP and other services many companies deploy across their intranet and on the Internet.