This text presents the reader with the facts to run their Internet server and their entire network in a dynamic way. It provides end-to-end coverage on networking with the most popular "flavours" of UNIX, with an emphasis towards proactive analysis and performance tuning techniques. Fundamental UNIX network security issues and implementation - such as firewalls - are covered to suit all network configurations. Analysis tools and practical optimization techniques are also presented in a logical, hands-on format for network administrators to simply access details which can greatly enhance their network performance. The book"s accompanying CD contains UNIX network management utilities, freeware and shareware products.