OpenBSD's stateful packet filter, PF, offers an amazing feature set and support across the major BSD platforms. Like most firewall software though, unlocking PF's full potential takes a good teacher. Peter N.M. Hansteen's PF website and conference tutorials have helped thousands of users build the networks they need using PF....

In the first volume to provide a comprehensive and authoritative empirical and clinical coverage of the process of rumination in depression, Costas Papageorgiou and Adrian Wells have...

Beginning Python: From Novice to Professional is the most comprehensive book on the Python ever written. Based on Practical Python, this newly revised book is both an introduction and practical reference for a swath of Python-related programming topics, including addressing language internals, database integration, network programming, and...

This book provides an accelerated introduction to Maple for scientific programmers who already have experience in other computer languages (such as C, Pascal, or FORTRAN). It gives an overview of the most commonly used constructs and an elementary introduction to Maple programming. The new edition is substantially updated throughout. In...