You paste a config into your terminal:

export https_proxy="http://proxy:12345" curl https://api.github.com And you get: curl: (7) Failed to connect to proxy port 12345: Connection refused

October 26, 2023 Category: DevOps & Networking

If you’ve ever dug through a legacy curl command, a Docker environment variable, or a scattered ~/.bashrc file, you’ve probably stumbled across a cryptic string like this:

Because the hostname proxy doesn't exist, or nothing is listening on port 12345 .

export HTTP_PROXY="http://proxy.local:12345"

Decoding the Config: What Does “Proxy 12345” Actually Mean?

Or maybe you saw the raw log line: "proxy 12345" .

proxy 12345
; ;