6.3 Digging into DNS

Question 1

NSLOOCKUP

Answer 1

The output displays what server was used to perform the request and the resolution result.

Question 2

PUBLIC DNS SERVERS

Answer 2

Are name servers specifically set up so that anyone can use them for free.

Level 3: 6.4.4.1 - 6.4.4.6
Google: 8.8.8.8, 8.8.4.4

Most public DNS servers are available globally through anycast.

Question 3

REGISTRAR

Answer 3

An organization responsible for assigning individual domain names to other organizations or individuals.

Question 4

HOST FILE

Answer 4

A host file is a flat file that contains on each line a network address followed by the host name it can be referred to as.

The original way that numbered network addresses were correlated with words was through hosts files.

Question 5

LOOPBACK ADDRESS

Answer 5

A loopback address is a way of sending network traffic to yourself.
Sending traffic to a loopback address bypasses all network infrastructure itself and traffic like that never leaves the node.