Pieterjan Lambein Pieterjan Lambein - 1 month ago 7
HTTP Question

Golang net Dial user:pass@ip:port gives: no such host

I'm trying to connect to a proxy server to start an HTTP CONNECT tunnel. The proxy server uses authentication. This code however fails to work:

conn, err := net.Dial("tcp", "[user:pass@111.222.333.444]:5555")


Even though the host exists, I get an error:

"dial tcp: lookup user:pass@111.222.333.444: no such host"


The string format I'm using was described in this post. Can't seem to get it to work though.
http://stackoverflow.com/a/8858209/6767074

Answer

I eventually found the problem. The net.Dial() method wasn't the one concerned with proxy authentication.

I just had to fill in the "Proxy-Authorization" header of the request before calling for am HTTP response. So my TCP address became:

conn, err := net.Dial("tcp", "111.222.333.444:5555")
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