15.4.8 Lab - Observe DNS Resolution- home assignme Answers
Kool: Tallinna Tehnikaülikool (TalTech, TTÜ)
Aine: Arvutivõrkude alused
Kategooria: Informaatika
Postitatud: 14 jaanuar 2025
Postitaja: tegelane
Kirjeldus
Objectives Part 1 Observe the DNS Conversion of a URL to an IP Address Part 2 Observe DNS Lookup Using the nslookup Command on a Web Site Part 3 Observe DNS Lookup Using the nslookup Command on Mail Servers Background / Scenario The Domain Name System (DNS) is invoked when you type a Uniform Resource Locator (URL) such as http//www.cisco.com into a web browser. The first part of the URL describes which protocol is used. Common protocols are Hypertext Transfer Protocol (HTTP) Hypertext Transfer Protocol over Secure Socket Layer (HTTPS) and File Transfer Protocol (FTP). DNS uses the second part of the URL which in this example is www.cisco.com. DNS translates the domain name (www.cisco.com) to an IP address to allow the source host to reach the destination server. In this lab you will observe DNS in action and use the nslookup (name server lookup) command to obtain additional DNS information. Required Resources 1 PC (Windows with internet and command prompt access) Part 1 Observe the DN…