Question : Find out which HTTP headers are used

Hi everyone

We have an application that communicates via HTTP with another server. There has been talk of inserting custom HTTP headers etc, so I wanted to check which HTTP headers are actually currently being used by the application.

I guess Wireshark is the answer - but can anyone tell me where I would find out what the used HTTP headers are?

Answer : Find out which HTTP headers are used

Yes, you should be able to use Wireshark to inspect the "GET" packet for the http request.
You can also use NetMon from microsoft.

Alternate solution:
You can also use NetCat, to listen on port 80 so you can visually see the entire packet in plain text.
nc.exe -l -p 80
Then on a test machine...get to the point where you want to send the request, and you then temporarily edit your HOSTS file to point the request to your machine.
domain.com            127.0.0.1