Tag: DNS query

TTL and how to check TTL

DNS

TTL – Time to live is a value that signifies how long should the data be kept before discarding. It is commonly used in computers. In...

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Why does DNS use UDP?

DNS

There are various ways of sending data over IP – TCP, UDP, DCCP, SCTP, RSVP and more. We will focus our attention on the two that are...

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