This is a complete revision of Michael Santifaller"s best selling book, which provides practical guidance in the planning, installation and operation of UNIX based LANs. * Updated Information on TCP/IP * A substantially re-worked NFS section to include indepth explanations of the RPC paradigm, rapidly becoming the preferred mechanism for writing distributed applications beyond NFS. * A revised programming chapter that now includes program examples for socket and TLI programming that will help UNIX Programmers develop their own distributed applications.