Nginx not responding to port 80 on public IP address

[lists at lazygranch.com]

I insist on encryption so this is what I use:

server {
        listen 80;
        server_name yourdomain.com  www.yourdomain.com ;
        if ($request_method !~ ^(GET|HEAD)$ ) {
            return 444;
         }
        return 301 https://$host$request_uri;
}

I only serve static pages so I use that filter. Obviously that is
optional. But basically every unencrypted request to 80 is mapped to an
encrypted request to 443.

On Thu, 4 Feb 2021 07:40:35 +0000
Adam <adam at monkeez.org> wrote:

> Hi all,
> 
> nginx is running and listening on port 80:
>         tcp        0      0 0.0.0.0:80              0.0.0.0:*
> LISTEN      0          42297      3576/nginx: master
>         tcp6       0      0 :::80                   :::*
>  LISTEN      0          42298      3576/nginx: master
> 
> The server responds fine to requests on port 443, serving traffic
> exactly as expected:
>         tcp        0      0 0.0.0.0:443             0.0.0.0:*
> LISTEN      0          42299      3576/nginx: master
> 
> However, it will not respond to traffic on port 80. I have included
> this line in my server block to listen to port 80:
>         listen 80 default_server;
>         listen [::]:80 default_server;
> 
> My full config can be seen at https://pastebin.com/VzY4mJpt
> 
> I have been testing by sshing to an external machine and trying telnet
> my.host.name 80 - which times out, compared to telnet my.host.name
> 443, which connects immediately.
> 
> The port is open on my router to allow port 80 traffic. This machine
> is hosted on my home network, serving personal traffic (services
> which I use, but not for general internet use). It does respond to
> port 80 internally, if I use the internal ip address
> (http://192.168.178.43).
> 
> I've kind of run out of ideas, so thought I would post here.
> 
> Thanks in advance for any support.
> 
> Adam