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A proxy server is a server application that acts as an intermediary between a client requesting a resource and the server providing that resource. Learn about the different types of proxy servers, such as forward, reverse, open, anonymous, transparent, and reverse proxies, and their functions and benefits.
Learn about firewalls, network security systems that monitor and control network traffic based on predetermined rules. Explore the history, types, and functions of firewalls, from packet filter to next-generation firewall.
SOCKS is a protocol that exchanges network packets between a client and server through a proxy server. It can be used for various purposes, such as circumventing Internet filtering, creating virtual private networks, or forwarding TCP or UDP traffic.
A web application firewall (WAF) is a security solution that filters, monitors, and blocks HTTP traffic to and from a web service. It can prevent attacks exploiting web application vulnerabilities, such as SQL injection, cross-site scripting, and file inclusion.
Tunneling protocol is a communication protocol that allows data to move from one network to another through encapsulation. Learn how tunneling works, what are its uses and common protocols, and how to bypass firewalls with tunneling.
Learn about the history, types, and implementations of application firewalls, which control input/output or system calls of an application or service. Compare network-based and host-based application firewalls, and see examples of products and software for various platforms.
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