===Proxy Servers===
Proxy servers sit between the client and the server

==Proxy Servers (Caching)==
Proxy servers hide the IP of the actual client
Caching proxy servers speed up access to websites by caching frequently accessed pages locally (on proxy server)

==Proxy Servers (Reverse)==
Reverse proxy servers hide the IP of the actual server

==Using Proxy Servers==
Browser
Edit | Preferences | Connection | ...

curl proxy (set environment variable BEFORE running curl)
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$ http_proxy=proxy.ri:8080 curl -i http://www.osde.info
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curl proxy (using command line switch)
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$ curl -x proxy.ri:8080 -i http://www.osde.info
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wget proxy (set environment variable BEFORE running wget)
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$ http_proxy=proxy.ri:8080 wget -S "http://www.osde.info/"
%%