I'm trying to troubleshoot a custom application that lives inside of a firewall on an enterprise network running Windows 2003 server. Our application uses PHP/cURL to send XML data to a publicly hosted website. By default, one can't uses a browser on this server; however, an earlier iteration of the application was able to go outbound on port 80 (in spite of the browser lock down).
I need a simple way of determining whether I can reach a particular destination via port 80 or port 443 (e.g. http://www.foo.com/other/import-xml?md87t9=g456342135kj5f7)
I would like to verify this before I work with the customer on changing their firewall/web filtering setup.