What is the main advantage of using proxies as firewalls?

The primary advantage of using proxies as firewalls is that they hide internal IP addresses from external exposure. This functionality is crucial in enhancing network security. When a proxy server is employed, it acts as an intermediary between internal devices and external networks. As a result, any requests that internal devices make to the internet are routed through the proxy, which means that the external servers only see the IP address of the proxy rather than the actual internal IP addresses. This obfuscation protects the internal network from direct attacks and keeps sensitive internal address schemes private.

In environments where security is a priority, this method reduces the risk of external entities targeting specific devices within the internal network. Additionally, using proxies can also facilitate controls over outbound traffic, as organizations can monitor and filter requests based on company policies before they reach the internet.

Understanding the role of proxies in this manner underscores their significance beyond just routing traffic, encompassing broader implications for safeguarding the overall integrity and confidentiality of the network.