A web server sees two requests both from IP address X Explai

A web server sees two requests, both from IP address X. Explain why the web server cannot be certain the requests are from the same machine.

A web server sees a request from IP address X on Monday and a request from IP address Y on Tuesday where X and Y are on the same subnet. Explain why the web server cannot be certain the requests are from different machines.

Solution

a) Public IP Address can be either static or dynamic. If it is dynamic, it would be changing frequently so the web server cannot be certain that requests are from the same machine.

b) If a group of devices are connected through a network, then all the devices would share the same public IP address.

So, the web server can\'t be certain that both requests are from the same machine though the IP addresses are the same. Also, it can\'t be certain that requests are from different machines if their IP addresses are different.