![]() ![]() Chapter 7 talks about the delegation and registration of reverse domains. The process of domain registration is also explained in the chapter. Chapter 6 focuses on DNS delegation from a primary to secondary servers. Chapter 5 covers DNS tuning and administration and tools, such as named-checkconf, named-checkzone, nslookup, dnswalk, dig, and rndc. The chapter also discusses the Windows 2000implementation. The use and configuration of the program named is explained in detail. Chapter 4 discusses name server implementations, focusing on Bind, versions 4, 8, and 9. Chapter 3 describes extension to the DNS protocol, including DNS Update, DNS Notify, Incremental Zone Transfer, Negative caching, DNS IPv6 Extension, DNSsec, and TSIG. Including an example of a non-existent RR query and its answer, communication with a root server, and TCP and UDP DNS queries. The chapter makes use of several examples of DNS client-server communication. Chapter 2 explains the DNS protocol, focusing on DNS query. Chapter 1 introduces basic DNS concepts, such as domains and subdomains, domain naming syntax, reverse domains, zones, queries, resolvers, name servers, forwarder servers. Many detailed examples are used throughout the book to show perform various configuration and administration tasks. 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. 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. The Domain Name System is one of the foundations of the internet.
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