CODEWITHSUNDEEP
dnsnetwork-programming
Sagar
Sagar

Reputation: 1175

What is Unicast DNS and how does it differ from other kinds of DNS?

  1. What are the other types of DNS available?
  2. How does it makes difference in resolving host names?

Upvotes: 5

Views: 4622

Answers (1)

Alexey Guseynov
Alexey Guseynov

Reputation: 5304

There is unicast and anycast DNS. For clients they are indistinguishable, if only you don't measure time needed for a name resolve. Unicast DNS is an old and simple installation type: your have one primary DNS server which is physically located somewhere. So it may take much time for packets to travel over a globe to that server. Anycast DNS is a new installation type. Instead of one server you have many servers in different spots on the Earth, but that servers respond to the same IP address. And requests are routed to the closest server. So response time can be much less.

Upvotes: 5

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