Proxy 12345 | [patched]

socat TCP-LISTEN:12345,reuseaddr,fork TCP:proxy.example.com:8080 A SOCKS5 proxy on port 12345 is common when using tools like SSH dynamic port forwarding or Shadowsocks . With SSH, you can create a secure tunnel that routes your browser traffic through a remote server.

| Aspect | Detail | |--------|--------| | | Unassigned (formerly “NetBus” Trojan in the 1990s) | | Common modern use | Proxy listeners, development servers, P2P applications | | Default for some proxy tools | 3proxy, Squid (custom builds), and SOCKS tunnels | proxy 12345

internal: 0.0.0.0 port = 12345 external: eth0 method: username none client pass from: 0.0.0.0/0 to: 0.0.0.0/0 log: error connect socat TCP-LISTEN:12345,reuseaddr,fork TCP:proxy

In the late 1990s, port 12345 was infamous as the default port for the NetBus remote administration Trojan. While modern antivirus software has largely eradicated this threat, the port still carries a stigma. Today, a clean service running a proxy on 12345 is perfectly legitimate. Typical Use Cases for Proxy 12345 1. Development and Testing Environments Developers often run temporary proxies on high-numbered ports like 12345 to test scraping scripts, API gateways, or cross-origin requests. Because it is unlikely to conflict with system services (SSH on 22, HTTP on 80, etc.), port 12345 serves as a safe sandbox. While modern antivirus software has largely eradicated this

pass from: 0.0.0.0/0 to: 0.0.0.0/0 protocol: tcp udp