[PHP] how to track haeder trouble???

[Sebastian Stadtlich]

Hi All
 
my isp mumbels something about trouble with header changes with php since
it's
running in CGI mode. I diffuse remember a way to connect to a webserver with
telnet on port
80 and then typing something to request a page.. could somone please tell me
what that something
was? or a page that point's out stuff like that?
 
thanks
Sebastian