CODEWITHSUNDEEP
javascriptpythongoogle-app-engineipmac-address
Maik Klein
Maik Klein

Reputation: 16158

GAE - Differentiate between multiple clients with the same ip

atm I am building my own auth system. But today I stumbled over a small problem.

How do I differentiate clients with the same ip ?

I first thought "hey no problem just look at their macip". But HTTP does not include the mac ip address and i can't run a python programm on the client.

So I would have to use some sort of javascript.

But this feels like a hack.

So I did some investigation Differentiating Between Two Computers On The Same Intranet

But how can I access the "clientport"? And is this a good solution ?

Upvotes: 1

Views: 280

Answers (2)

RedGlow
RedGlow

Reputation: 773

From your question I deduce you're writing an authentication system based on HTTP, not just bare TCP. In this case, you could use cookies, which provides exactly the kind of tracking mechanism you need, and are the preferred choice for HTTP login mechanisms.

In generale, with HTTP you shouldn't have to worry and deal about IP addresses, you're a level higher in the stack.

Upvotes: 2

deceze
deceze

Reputation: 522567

Give the client a token on his first visit that he must send back to the server on each request to identify himself. In a web browser, that's a cookie with a session id or similar unique identifier. On non-web browser systems you can do something similar. There's no way to do this on a protocol level, since the underlying protocols (TCP/IP, HTTP) have been designed to route packets to their destination, unique identification is not part of that process.

Upvotes: 6

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