What is a Proxy Tunnel?

A proxy tunnel is an encapsulated network connection that passes through a proxy server, carrying the original traffic intact without the proxy inspecting or modifying the payload. HTTPS CONNECT tunnels and SOCKS tunnels are the most common implementations.

CONNECT and SOCKS Tunnel Establishment

Tunnel creation begins with the client requesting the proxy to establish a connection to a specific target. For HTTP CONNECT tunnels, the client sends a CONNECT request with the target hostname and port. The proxy establishes a TCP connection to the target and then blindly relays bytes between client and target. For SOCKS tunnels, the protocol's handshake phase establishes the tunnel. Once active, the proxy acts as a transparent relay. The tunnel persists until either side closes the connection.

When your HTTPS request to example.com passes through gate.hexproxies.com:8080, the process begins with a CONNECT example.com:443 request. The gateway opens a TCP connection to example.com and then steps aside, relaying encrypted bytes without reading them. The TLS session is strictly between your client and example.com.

Tunneling Enables Modern Encrypted Web

Proxy tunnels are essential for carrying encrypted traffic (HTTPS) and non-HTTP protocols through proxy infrastructure. Without tunneling, proxies could only handle plain HTTP traffic. Tunnels enable secure, end-to-end encrypted connections through the proxy while maintaining all the benefits of IP masking and geo-targeting. Hex Proxies supports full tunnel functionality for both CONNECT and SOCKS5 protocols.