Science The Definitive

Kerberos, the single sign-on authentication system originally developed at MIT, deserves its name. It's a faithful watchdog that keeps intruders out of your networks. But it has been equally fierce to system administrators, for whom the complexity of Kerberos is legendary.

Combining stunning photographs with expert knowledge, this book is a dazzling guide to precious stones, organic gems, and precious metals.

Blockchain: a disruptive technology, or a new chance for the business world? The answer is both. With potential to change how economic transactions are recorded, stored, and verified, blockchain is changing the very face of the accounting industry. Despite its ramifications, business students of today and the practicing accountants of tomorrow are not being adequately trained in this new technology, due to a lack of resources exploring it from an accountant and business expert's perspective.