A Deeper Look at DNS - lizzy9596/my-tech-journal GitHub Wiki

This lab gave me a more indept look at DNS through using wireshark.

DNS uses TCP when the packet size is too large to go through UDP.

A display filter to see just DNS packets:

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What are the different types of DNS Records? Provide a brief description of each in your own words. There are dozens of DNS record types, so discuss the more common ones (< 10 of them) but more than (CNAME,A,PTR) discussed in class.

  • https://ns1.com/resources/dns-records-explained
  • AAAA is the most common DNS record, it points to a IPv4
  • CNAME is used to link a subdomain to a domain’s A or AAAA
  • DNAME records make a CNAME record for every subdomain of a domain.
  • .ALIAS record works as the CNAME record does, except it can be placed on the root domain
  • AFSD are used to connect domain names to AFS servers
  • CAA Records allows domain owners to authorize third party vendors
  • CERT resource records are used for storing certificates
  • HINFO records define the specifications and operating system of a computer