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More info about IPv4, IPv6. #1

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6 changes: 4 additions & 2 deletions _posts/2015-01-02-internet.md
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Expand Up @@ -38,7 +38,9 @@ Although any device connected to the Internet can be both a client and a server

Like every house has a specific and _unique_ postal address, each computer connected to the Internet is given an **IP address**, in order to be identified on the network.

An IP address usually looks like a combination of 4 numbers: `91.198.174.192`.
There are two versions of IP addresses: IP version 4 and IP version 6.

A version 4 address is a combonation of 4 numbers ranging from 0 to 255 called "Octets". For example: `91.198.174.192`. A version 6 address is a combonation of 8 hexedicmal numbers called "Hextets". For example: `2001:0db8:0000:0000:0000:0000:0000:0001`.

### Domains

Expand Down Expand Up @@ -142,4 +144,4 @@ The difference with IP addresses is that domains are easier to read for **humans

[^1]: Apart from oceans obviously.

*[SMTP]: Simple Mail Transfer Protocol
*[SMTP]: Simple Mail Transfer Protocol