Are HTTP cookies port specific?

Question

I have two HTTP services running on one machine. I just want to know if they share their cookies or whether the browser distinguishes between the two server sockets.

Answer 1

An alternative way to go around the problem, is to make the name of the session cookie be port related. For example:

• mysession8080 for the server running on port 8080
• mysession8000 for the server running on port 8000

Your code could access the webserver configuration to find out which port your server uses, and name the cookie accordingly.

Keep in mind that your application will receive both cookies, and you need to request the one that corresponds to your port.

There is no need to have the exact port number in the cookie name, but this is more convenient.

In general, the cookie name could encode any other parameter specific to the server instance you use, so it can be decoded by the right context.