Limit connected socket per computer/user in Socket.IO

Question

How can I limit the number of connected socket per computer/user to Socket.IO server?

I know I can use session, but if the user tries to use multiple web browser then that would be useless.
IP address could also be used in this case, but if I use IP address then it would prevent other users behind the same router (same IP address) to connect to the server

Any other suggestion?

Why would this matter? You won't be able to stop someone malicious from spoofing browsers, IP addresses, etc. But if your goal is simply to throttle traffic, just set a limit per IP (say 5-10) and use the session to limit per-user. That should do : ) — Kato
– Kato, Commented Dec 9, 2011 at 15:32

alessioalex · Accepted Answer · 2011-12-09 12:59:40Z

3

You can only limit connections by:

a) IP, which you said you don't want
b) Browser, since you can remember cookies (but if somebody opens multiple 'incognito' tabs with Chrome for example it can bypass this; also if they open another browser they can bypass this)

You cannot determine if a user is behind a router.

My suggestion:

Limit by both ip and browser: set a maximum number of connections for an ip and allow only one connection for the same browser.

edited Dec 9, 2011 at 12:59

answered Dec 9, 2011 at 12:44

alessioalex

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1 Comment

Nactus Over a year ago

"set a maximum number of connections for an ip and allow only one connection for the same browser." -- how? an example would be appreciated

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