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DNS Records

DNS Records

  • The database records of DNS
    • Over 30 types of records
      • (IP addresses, certificates, host aliases, names)

[!example] Sample forward lookup file SampleForwardLookup_visual.png [[DNS_Queries#Forward_Lookup]]

SOA

Start of Authority - Describes the DNS zone details. - Structure: - IN SOA (Internet zone, Start of Authority) with the name of the zone - Serial number - Refresh, retry, and expire timeframes - Caching duration (TTL)

[!example] SOABeginningFile_visual.png

Address Records (AAAA)

  • Defines the IP address of a host
    • This is the most popular query
  • A records are for IPv4 address
    • Modify the A record to change the host name to IP (address resolution)
  • AAAA records are for IPv6 address
    • Same DNS server with different records

[!example] AAARecordsExample_visual.png

CNAME

Canonical Name Records - A name is an alias of another canonical name - (One physical server, multiple services)

[!example] CanonicalName_visual.png

SRV

Service Records

[!quote] DNS Queries