HTTP CONNECT

The CONNECT method turns an ordinary HTTP proxy into a blind tunnel. A client sends CONNECT host:443 to the proxy; the proxy opens a TCP connection to that host and, once established, simply relays bytes in both directions without interpreting them. This is what lets an authenticated HTTP proxy carry HTTPS: the proxy sees only the destination host and port, never the encrypted contents, because the TLS handshake happens end-to-end between the client and the real server through the tunnel.

The s4m HTTP proxy at proxy.s4m.online:3128 uses CONNECT for HTTPS with USER:PASS credentials (see proxy authentication). CONNECT opens a TCP tunnel: it can also carry non-HTTP protocols when the proxy permits the destination. End-to-end TLS with certificate validation protects the content; CONNECT itself adds no encryption, and the proxy still sees the target host and port. The SOCKS5 endpoint on port 1080 is another interface for TCP relaying, not a requirement merely because the payload is not HTTP.

Configure your HTTPS client to use proxy.s4m.online:3128 with USER:PASS; a compatible library sends CONNECT automatically. The resulting tunnel carries TCP bytes, including non-HTTP protocols when the destination is allowed, but not ordinary UDP datagrams. SOCKS5 on port 1080 is an alternative for TCP; its UDP ASSOCIATE feature requires support in the client, proxy and network path. End-to-end TLS with certificate validation protects HTTPS content. CONNECT supplies a tunnel and an exit IP, not additional encryption or hidden destination metadata.