Month: July 2024

Domain Information Groper (DIG) is another helpful tool. You can use DIG to discover everything nslookup can supply. However, DIG has one more option not available in nslookup:the ability to

DNS responses are also important for security; consider the network shown in Figure 16-9. Figure 16-9 DNS Man-in-the-Middle Attacks In Figure 16-9: 1.  Host A sends a query to the

Authoritative DNS servers are maintained by any organization that assigns and manages domain names, including • Large organizations like colleges and companies that have a domain name. • Domain name

DNS was initially deployed on four physical root servers,  running on PDP-10 mainframe computers, in the mid-1980s. Three different organizations ran these four servers: • SRI International managed one DNS

What happens when a user types in a non-existent domain name? The host will still build a query and send the query to the recursive server. How the recursive server

A domain name is often used in a Uniform Resource Locator (URL) context. A URL normally has two parts: • A service, like https:// and ftp:// • A domain name

Figure 16-1 illustrates the dotted decimal format of domain names. Figure 16-1 DNS Name Format The DNS namespace is hierarchical. Moving from the right to the left: • The name

Take the quiz (either here or use the PTP software) if you want to use the score to help you decide how much time to spend onthis chapter. Appendix A,