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MAC addresses - we will pay attention to what they represent after a while.
IP addresses, Internet - IP addresses. And after that - how actually
web sites detect the IP. There is different ways -
Cookie, Java, ActiveX and here are Proxy, where is the method
how to hide our IP, also VPN and what's the difference between Proxy and VPN.
An Internet network, generally, looks like this:
a computer, small router, which is our home router,
and upward after that is the equipment of the ISP.
It doesen't matter how much switches and routers we have,
customer's comupers are connected to the switches.
and routers that forward traffic to Internet.
It doesn't matter how big is this picture and how many devices we have on it
We can present it in this way:
the switch - here we have more customers and computers,
the router which is the equipment of the ISP and forward
our 'inner traffic' to Internet.
Internal netwotk - that is the network wich is owned by the ISP
and he has control over it (because he may doesn't have control over all the equipment)
The ISP network is actually from here to this point.
In the internal network the computers are configured to communicate with
the ISP, and to each other and with Internet. In general via
two main parameters - MAC address and IP address.
The MAC address is a 'number' of the computer - unique address
which is applied at the network component production.
Wireless card, LAN card,
routers and switches also have MAC addresses - 48 bits long
which are accepted to be represented as hexadecimal.
As technical parameters, each computer, each network card has MAC address
which is built at it's production.
This address can not be chanched - not in hardware way.
But as the operating system, i.e. Windows or Linux communicate
so they can pass it upward the chain to the ISP, it can be changed as parameter,
i.e. in spite of that we have it hard coded by the producer of the equipment, we can change it.
Now will show you.
That computer with this address and I input the following parameters.
...
...we have converted the names...