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I think it is an issue with the software firewall that is blocking the connection over port#80 and 443:
$ curl -Il 188.8.131.52
curl: (7) Failed to connect to 184.108.40.206 port 80: Connection refused
$ nmap -p 22,80,443 220.127.116.11
Starting Nmap 7.60 ( https://nmap.org ) at 2019-05-16 17:04 EDT
Nmap scan report for 18.104.22.168
Host is up (0.049s latency).
port state service
22/tcp open ssh
80/tcp closed http
443/tcp closed https
nmap done: 1 ip address (1 host up) scanned in 0.31 seconds
Could you please run the below commands and check?
sudo service firewalld status
sudo ufw status verbose
sudo iptables -L
sudo netstat -plnt [ Look for port#80 and 443 in the output ]
If any of these firewall softwares are active, you may want to stop and disable them and try to connect to your website again.
To help you understand the firewall softwares, please read through below articles:
Category IT & Programming
Subcategory Web development
What is the scope of the project? Small change or bug
Is this a project or a position? Project
I currently have Not applicable
Required availability As needed
Roles needed Other
Deadline: May 28, 2020