On Mon, 2010-10-18 at 23:21 +0800, Justin Richards wrote: > My question is :- >=20 > Can my network administrator stop other traffic (other than http > requests) from using port 80 and 443. Unfortunately yes, many networks use deep packet inspection and filter based on that. On one network I know it will only allow the protocol that is "meant" to be on the port, so port 22 only allows ssh connections, port 80 only http connections. VERY annoying. TTYL --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .