Types of DNS Entries

• DNS used other types of resolution

• Eg: also for finding mail server, pop server, responsible person, etc for a computer

• DNS database has multiple “types”

  • Record type A ? Address of X
  • Record type MX ? Mail exchanger of X

• DNS database may also have multiple “classes”

  • Can support name resolution for multiple protocols eg: IP, SNA, DECbit etc

• Pointer queries: given IP address find name

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