This is the standard for web browsing. It understands HTTP/HTTPS traffic only.
If you are following a tutorial that requires this configuration, the general steps include: proxy 12345
Decoding the Config: What Does “Proxy 12345” Actually Mean? This is the standard for web browsing
Setting up your own proxy server on port 12345 gives you complete control. Here is a step-by-step guide using (HTTP) and Shadowsocks (SOCKS5). proxy 12345
Or maybe you saw the raw log line: "proxy 12345" .