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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

CIDR Notation
A compact method for specifying IP addresses and their associated routing prefix using a slash followed by the prefix length.
Network Monitoring
The practice of continuously observing network infrastructure to detect failures, performance degradation, and security threats.
Reverse Proxy
A server that sits between clients and backend servers, forwarding client requests and returning server responses on their behalf.
Content Delivery Network (CDN)
A geographically distributed network of servers that caches and delivers web content from locations closest to users for faster load times.
NAT (Network Address Translation)
A method of mapping private IP addresses to public IP addresses, allowing multiple devices to share a single public IP.
VLAN (Virtual LAN)
A logical grouping of network devices that creates separate broadcast domains on the same physical network infrastructure.
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