nginx website on Ubuntu 18 not loading on public IP - linux

Question

I am trying to host a website via nginx on Amazon AWS EC2 Ubuntu 18.04. I started by following this tutorial. I ran sudo apt update and sudo apt install nginx. Then, I ran sudo ufw allow 'Nginx HTTP'. Running sudo ufw status returned the following;
Status: active
To Action From
-- ------ ----
Nginx HTTP ALLOW Anywhere
OpenSSH ALLOW Anywhere
Nginx HTTP (v6) ALLOW Anywhere (v6)
OpenSSH (v6) ALLOW Anywhere (v6)
After that I ran systemctl status nginx which returned:
● nginx.service - A high performance web server and a reverse proxy server
Loaded: loaded (/lib/systemd/system/nginx.service; enabled; vendor preset: en
Active: active (running) since Thu 2019-03-21 14:30:31 UTC; 1min 17s ago
Docs: man:nginx(8)
Process: 2657 ExecStart=/usr/sbin/nginx -g daemon on; master_process on; (code
Process: 2644 ExecStartPre=/usr/sbin/nginx -t -q -g daemon on; master_process
Main PID: 2661 (nginx)
Tasks: 2 (limit: 1152)
CGroup: /system.slice/nginx.service
├─2661 nginx: master process /usr/sbin/nginx -g daemon on; master_pro
└─2663 nginx: worker process
Mar 21 14:30:31 ip-172-31-29-16 systemd[1]: Starting A high performance web serv
Mar 21 14:30:31 ip-172-31-29-16 systemd[1]: nginx.service: Failed to parse PID f
Mar 21 14:30:31 ip-172-31-29-16 systemd[1]: Started A high performance web serve
lines 1-15/15 (END)...skipping...
● 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 Thu 2019-03-21 14:30:31 UTC; 1min 17s ago
Docs: man:nginx(8)
Process: 2657 ExecStart=/usr/sbin/nginx -g daemon on; master_process on; (code=exited, status=0/SUCCESS)
Process: 2644 ExecStartPre=/usr/sbin/nginx -t -q -g daemon on; master_process on; (code=exited, status=0/SUCCESS)
Main PID: 2661 (nginx)
Tasks: 2 (limit: 1152)
CGroup: /system.slice/nginx.service
├─2661 nginx: master process /usr/sbin/nginx -g daemon on; master_process on;
└─2663 nginx: worker process
Mar 21 14:30:31 ip-172-31-29-16 systemd[1]: Starting A high performance web server and a reverse proxy server...
Mar 21 14:30:31 ip-172-31-29-16 systemd[1]: nginx.service: Failed to parse PID from file /run/nginx.pid: Invalid argument
Mar 21 14:30:31 ip-172-31-29-16 systemd[1]: Started A high performance web server and a reverse proxy server.
I then tried to fix the Failed to parse PID from file /run/nginx.pid: Invalid argument error. I did that by doing mkdir /etc/systemd/system/nginx.service.d, then printf "[Service]\nExecStartPost=/bin/sleep 0.1\n" which returned
[Service]
ExecStartPost=/bin/sleep 0.1
After that I ran sudo nano /etc/systemd/system/nginx.service.d/override.conf and inserted the above quote into there and saved it. Then sudo systemctl daemon-reload and sudo systemctl restart nginx. After that running systemctl status nginx returned this:
● nginx.service - A high performance web server and a reverse proxy server
Loaded: loaded (/lib/systemd/system/nginx.service; enabled; vendor preset: enabled)
Drop-In: /etc/systemd/system/nginx.service.d
└─override.conf
Active: active (running) since Thu 2019-03-21 14:54:44 UTC; 16s ago
Docs: man:nginx(8)
Process: 2941 ExecStop=/sbin/start-stop-daemon --quiet --stop --retry QUIT/5 --pidfile /run/nginx.pid (code=exited, status=0/SUCCESS)
Process: 2957 ExecStartPost=/bin/sleep 0.1 (code=exited, status=0/SUCCESS)
Process: 2955 ExecStart=/usr/sbin/nginx -g daemon on; master_process on; (code=exited, status=0/SUCCESS)
Process: 2944 ExecStartPre=/usr/sbin/nginx -t -q -g daemon on; master_process on; (code=exited, status=0/SUCCESS)
Main PID: 2956 (nginx)
Tasks: 2 (limit: 1152)
CGroup: /system.slice/nginx.service
├─2956 nginx: master process /usr/sbin/nginx -g daemon on; master_process on;
└─2962 nginx: worker process
Mar 21 14:54:44 ip-172-31-29-16 systemd[1]: Stopped A high performance web server and a reverse proxy server.
Mar 21 14:54:44 ip-172-31-29-16 systemd[1]: Starting A high performance web server and a reverse proxy server...
Mar 21 14:54:44 ip-172-31-29-16 systemd[1]: Started A high performance web server and a reverse proxy server.
I figured everything should be working now, so I ran curl localhost and that returned
<!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
nginx.org.<br/>
Commercial support is available at
nginx.com.</p>
<p><em>Thank you for using nginx.</em></p>
</body>
</html>
I believe I should also be able to access this from my home PC, so I did curl ifconfig.me to get my public IP and then I went to http://PUBLICIP, but it said This site can’t be reached.
Can someone help me fix this please?
Thanks.

Answer 1

Problem was my AWS security groups, I added an inbound rule to accept all TCP and now it works.