What is a network proxy

1. Forward agency

 

         The client -------> Proxy host ------> Internet ------> Server host

effect : 

Access to inaccessible servers , cache , Client access authorization , Hide your whereabouts

2. Reverse proxy

Server host -------> Proxy host ------> Internet ------> The client

effect :

Hide the real server behind the proxy server , All client access is handled by the proxy server

3. Transparent proxy

effect :

Automatic network behavior management , Users don't need to know , No proxy , The network device will set up its own proxy And process the data returned by the server .

Common agent Tools :

Mitmproxy ,Burp Suite, Owasp-zap, Paros, Proxystrike, Vega,Webscarab