14.9.1 Proxy Server Basics

Learn the basics behind proxy servers.

Proxy servers are devices or software programs that allow or deny traffic to move through a network based on the traffic's content. It's used to shape/route traffic through a network and can act as a firewall. Essentially serves as a relay between the sender and recipient for safety purposes.

Caching & Address Translation

The proxy server uses NAT to hide private IP addresses from the Internet, and to attach it's own public IP address to network requests leaving the internal network. It also caches web pages to allow faster response times the next time a internal network user requests the same web page.

Proxy Server Types

• Intercepting
• Transparent
• Autoconfiguring

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