Proxy 12345 -

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

You paste a config into your terminal:

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

Decoding the Config: What Does “Proxy 12345” Actually Mean? export https_proxy="http://proxy:12345" curl https://api