Thursday, October 17, 2024

Re: "Connection refused" for everything except port 80

Dear Aaron,

Thanks for the reply! See inline below.

> On Oct 17, 2024, at 22:40, Aaron Mason <simplersolution@gmail.com> wrote:
>
> Do you get the same response when trying to connect to port 443 on the
> Windows machine?

Yes, the Windows machine can access https://www.google.com/ through the web browser, so it must be able to connect to port 443 which serves HTTPS traffic.

> A standard config would block it if there isn't a
> service running on that port that was allowed, resulting in a
> connection timeout.

Can you clarify on this? I'm pretty sure port 443 at www.google.com <https://www.google.com/> is open, because everyone need that to Google stuff. I also tried www.example.org:443 <http://www.example.org:443/>, which unsurprisingly gave me another "Connection refused" error. In case it matters, nc returns with error immediately, so it is unlikely due to a connection timeout.


Bests,
Qingyao

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