DNS: Aufbau, Funktionalität, Analyse (DNS)

Network Administrators, Network Architects and System Advisors, who want to have a detailed insight in the concepts and work function of DNS in the network, while delving into the practical aspects of the DNS operation.

Basic experience of local networking and TCP/IP

This course includes a systematic introduction in the concepts, implementation and operation of Domain Name System (DNS) services in networks. It focuses on the practical aspects of the DNS operation and typical traps configuring, analyzing and eliminating daily operation problems. Practical exercises will be accomplished by the help of the wireshark analyzer.

English course documents

• Names and Name Administration
• Name administration on the internet
• Name structures and the domain name system
• DNS and WINS in comparison
• DNS Concepts and Excercises
• Exercises and structure of DNS servers – names, zones, records
• Forward and reverse lookup – forward and reverse zones
• Lab: Name cancellation
• DNS-Client: Operations and Workflow
• Workflow of a name cancellation
• The hosts file
• Caching
• Lab: Lookup and name cache
• DNS Services and Server Concepts
• Server concepts: Primary and secondary DNS
• Designing public nameserver structures
• Replicating DNS information, zone transfers
• Typical server operations
• DNS Server Systems – Overview, Configuration and Sampling
• Blind Server
• Windows DNS server
• Lab: DNS server, structure and configuration
• DNS Protocol and Analysis
• DNS protocol and package structure
• Erorr flags and typical DNS problems
• Lab: Analysis of DNS
• Advanced DNS Operations
• New functions, new records
• Dynamic DNS and secure DNS
• DNS – Integration In Active Directory
• DNS implementation in Microsoft active directory
• Lab: DNS while booting and logging in a windows client
• DNS and Security
• Dangers and attacks
• Server security
• Sender policy framework