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Networking Intermediate

What is Proxy Server?

An intermediary server that forwards requests between clients and destination servers, providing caching, filtering, or anonymity.

A proxy server acts as a gateway between users and the internet. Forward proxies serve clients (hiding client identity), while reverse proxies serve servers (load balancing, SSL termination, caching).

Use cases include content filtering, bandwidth saving through caching, accessing geo-restricted content, and security monitoring. Nginx and Squid are popular proxy server software.

Related Terms

Load Balancer
A device or software that distributes network traffic across multiple servers to ensure reliability and performance.
Traceroute
A network diagnostic tool that shows the path packets take from source to destination, listing each hop along the way.
Firewall
A network security system that monitors and controls incoming and outgoing traffic based on predetermined rules.
SSL/TLS Certificate
A digital certificate that authenticates a website identity and enables encrypted HTTPS connections.
MTU (Maximum Transmission Unit)
The maximum size of a data packet that can be transmitted over a network without fragmentation.
Network Bridge
A device or software that connects two or more network segments at the data link layer, forwarding traffic based on MAC addresses.
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