DNS - resolves domain names into IP addresses, end users don't have to memorize these long numbers - a DNS server must be configured not having to memorize IP addresses as they change - DNS will resolve into the IP of the closest servers for that domain name to reduce latency - DNS uses UDP else it would be bloated with TCP segment overhead from establishing connections everytime via 3 way handshake
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DNS
- resolves domain names into IP addresses, end users don't have to memorize these long numbers
- a DNS server must be configured not having to memorize IP addresses as they change
- DNS will resolve into the IP of the closest servers for that domain name to reduce latency
- DNS uses UDP else it would be bloated with TCP segment overhead from establishing connections everytime via 3 way handshake
why 11 packets in TCP for root server in TCP 16:51
i too got confused there. anybody knows the ans..
@@nanaa4631
TCP 3-way handshake: 3
request + ack: 2
response + ack: 2
TCP 4-way FIN: 4
So this is 11.
Chilling