On 28/06/2013 5:15 a.m., Geary, Brian W. wrote:
I was wondering if there was a way to test if a proxy was a "true" proxy. I have been told there is a filter proxy and a true proxy. The difference being that the true proxy is more secure. I have been told that a true proxy has a barrier of some sort or protocol shift within the proxy. [b]True proxy[/b]: browser->proxy [barrier or protocol shift] proxy->remote site connection [b]Filter proxy[/b]: browser->proxy -- proxy->remote site connection Thanks Brian
HTTP defines proxies in the role of gateway (between protocols or networks - ie Squid when using FTP/Gopher/WAIS backends or IPv4/IPv6 mapping), transforming (alters the payload content ie Squid with ICAP/eCAP features enabled), and transparent (does not alter the HTTP headers or payload beyond RFC mandatory changes - ie Squid default installation). Reverse proxies and interception proxies are not defined specifically.
Telling them apart without knowing the proxy configuration file content is very difficult. You have to recover the headers sent by the client and received by the server to compare and see what was changed (if anything).
Amos
