DNS in Action: A Detailed and Practical Guide to DNS Implementation, Configuration, and Administration

The Domain Name System is one of the foundations of the internet. It is the system that allows the translation of human-readable domain names into machines-readable IP addresses and the reverse translation of IP addresses into domain names. This book describes the basic DNS protocol and its extensions; DNS delegation and registration, including for reverse domains; using DNS servers in networks that are not connected to the internet; and using DNS servers on firewall machines. Many detailed examples are used throughout the book to show how to perform various configuration and administration tasks.

About the Authors

Libor Dostalek was born in 1957 in Prague, Europe. He graduated in mathematics at the Charles University in Prague. For the last 20 years he has been involved in ICT architecture and security. His experiences as the IT architect and the hostmaster of one of the first European Internet Service Providers have been used while writing this publication.

Later he became an IT architect of one of the first home banking applications fully based on the PKI architecture, and also an IT architect of one of the first GSM banking applications (mobile banking). As a head consultant, he designed the architecture of several European public certification service providers (certification authorities) and also many e-commerce and e-banking applications.

The public knows him either as an author of many publications about TCP/IP and security or as a teacher. He has taught at various schools as well as held various commercial courses. At present, he lectures on Cryptology at the Charles University in Prague.

He is currently an employee of the Siemens.

Alena Kabelova was born in 1964 in Budweis, Europe. She graduated in ICT at the Economical University in Prague. She worked together with Libor Dostalek as a hostmaster. She is mostly involved in software development and teaching. At present, she works as a senior project manager at the PVT and focuses mainly on electronic banking.

Her experiences as the hostmaster of an important European ISP are applied in this publication.