Proxy Server
A proxy server performs the function of a firewall and filter. It helps prevent cyber attackers from entering a private network.
It acts as a gateway between you and the internet. It’s an intermediary server separating end users from the websites they browse. A proxy server is essentially a computer on the internet that has an IP address of its own.
Your computer knows this IP address, and when you send a request on the internet, it is routed to the proxy server's IP address first, which then gets the response from the web server and forwards the data from the page to your computer’s browser.
A proxy server can change your IP address, so the web server doesn’t know exactly where you are in the world or it can block access to certain web pages, based on their IP address.
Forward Proxy
A forward proxy sits in front of clients and is used to get data to groups of users within an internal network. When a request is sent, the proxy server examines it to decide whether it should proceed with making a connection.
Reverse Proxy
A reverse proxy is positioned in front of web servers and forwards requests from a browser to the web servers. It works by intercepting requests from the user at the network edge of the web server. It then sends the requests to and receives replies from the origin server.
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