I have a strange problem with my Ubuntu Server 20.04 LTS
Brief Background:
I installed nginx and have been having alot of trouble with setting up letsencrypt. Attempting this with a statically served file, it continuously said the connection was refused. I reverted back to the original nginx default configuration, from localhost I see the page content "Welcome to NGINX" in HTML, but from multiple external sources, I keep getting connection refused.
Configuration Default NGINX configuration (copy + pasted directly)
server {
listen 80 default_server;
listen [::]:80 default_server;
root /var/www/html;
index index.html index.htm index.nginx-debian.html;
server_name _;
try_files $uri $uri/ =404;
# proxy_pass http://localhost:8080;
# proxy_http_version 1.1;
# proxy_set_header Upgrade $http_upgrade;
# proxy_set_header Connection 'upgrade';
# proxy_set_header Host $host;
# proxy_cache_bypass $http_upgrade;
}
}
Using curl, I attempt to connect to port 80 from a remote site:
curl http://my-domain.com
responding with
curl: (7) Failed to connect to my-domain.com port 80: Connection refused
Other Information:
Active NGINX configuration added to sites-enabled
blms@my-domain:/etc/nginx/sites-enabled$ ls -la
total 8
drwxr-xr-x 2 root root 4096 Sep 28 03:57 .
drwxr-xr-x 8 root root 4096 Sep 28 03:29 ..
lrwxrwxrwx 1 root root 34 Sep 28 03:57 default -> /etc/nginx/sites-available/default
Nginx Service Status: Active (no errors reported)
blms@my-domain:~$ sudo systemctl status nginx
● nginx.service - A high performance web server and a reverse proxy server
Loaded: loaded (/lib/systemd/system/nginx.service; enabled; vendor preset: enabled)
Active: active (running) since Mon 2020-09-28 03:57:26 UTC; 6min ago
Docs: man:nginx(8)
Process: 2901 ExecStartPre=/usr/sbin/nginx -t -q -g daemon on; master_process on; (code=exited, status=0/SUCCESS)
Process: 2912 ExecStart=/usr/sbin/nginx -g daemon on; master_process on; (code=exited, status=0/SUCCESS)
Main PID: 2913 (nginx)
Tasks: 2 (limit: 1074)
Memory: 2.6M
CGroup: /system.slice/nginx.service
├─2913 nginx: master process /usr/sbin/nginx -g daemon on; master_process on;
└─2914 nginx: worker process
Sep 28 03:57:25 my-domain.com systemd[1]: Starting A high performance web server and a reverse proxy server...
Sep 28 03:57:26 my-domain.com systemd[1]: Started A high performance web server and a reverse proxy server.
Confirmed HTTP Server listening on port 80:
blms@my-domain:~$ sudo ss -tlp | grep http
LISTEN 0 511 0.0.0.0:http 0.0.0.0:* users:(("nginx",pid=2914,fd=6),("nginx",pid=2913,fd=6))
LISTEN 0 511 [::]:http [::]:* users:(("nginx",pid=2914,fd=7),("nginx",pid=2913,fd=7))
iptables allowing all connections
blms@my-domain:~$ sudo iptables -L -v
Chain INPUT (policy ACCEPT 2936 packets, 238K bytes)
pkts bytes target prot opt in out source destination
Chain FORWARD (policy ACCEPT 0 packets, 0 bytes)
pkts bytes target prot opt in out source destination
Chain OUTPUT (policy ACCEPT 2567 packets, 393K bytes)
pkts bytes target prot opt in out source destination
Frankly, I am quite stumped. I have also restarted to no avail.
Any suggestions?
Update
curl with IP address
curl x.y.z.a:80
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
0 0 0 0 0 0 0 0 --:--:-- 0:00:03 --:--:-- 0
curl: (7) Failed to connect to x.y.z.a port 80: Connection refused
curl localhost on server itself
curl localhost
<!DOCTYPE html>
<html>
<head>
<title>Welcome to nginx!</title>
<style>
body {
width: 35em;
margin: 0 auto;
font-family: Tahoma, Verdana, Arial, sans-serif;
}
</style>
</head>
<body>
<h1>Welcome to nginx!</h1>
<p>If you see this page, the nginx web server is successfully installed and
working. Further configuration is required.</p>
<p>For online documentation and support please refer to
<a href="http://nginx.org/">nginx.org</a>.<br/>
Commercial support is available at
<a href="http://nginx.com/">nginx.com</a>.</p>
<p><em>Thank you for using nginx.</em></p>
</body>
</html>
