New methods of breaking into corporate networks are resulting in major losses. This book provides the latest information on how to guard against attacks and inform the IT manager of the products that can detect and prevent break-ins. Methods for authentication and encryption are explained, enabling the reader to understand when and where these developments apply. The latest incident handling procedures for detecting and recovering data from new viruses, in order to protect against major losses for corporations, are also included.

Helps home and business owners retrofit their buildings with solar heating, in a book that discusses solar hot air heating; energy efficiency, weatherization and insulation; solar thermal systems, passive solar heating and backup heating systems. Original.

If you want an inexpensive, environmentally sound source of energy for your home, you need look no further than the sun. Solar heat is not subject to rate increases, is totally renewable, pollution free and requires little or no technology. It is here for you today, and can easily provide up to 50% of your space and water heating requirements. This is a book that simply and clearly explains the principles of using solar energy to heat your home. Anyone building a new home, or renovating an old one can incorporate one or several aspects of solar energy into their design. Taking you through the process of designing a solar home from the ground up this manual is also a basic course in conservation and sustainable house design. If you live in a 'heating' climate, meaning if you have space heating requirements for most of the year then this is an invaluable resource. A house is the biggest single investment most of us will make in our lives - the way it is built and how it operates can reflect a long term investment in both the building and the planet.