By Aranir
I followed the following guide:
and tried to open port 80, but I still have nothing open or listening:
netstat -plunt
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 127.0.0.1:3306 0.0.0.0:* LISTEN 1051/mysqld
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 965/sshd
tcp6 0 0 :::22
The strangest thing is that I could connect to the server yesterday and today it isn’t working anymore and the only thing I changed was to add a DNS entry on Digital Ocean.
Could this have anything to do with it?
I tried even to disable any protection with the following commands:
$ sudo iptables -X
$ sudo iptables -t nat -F
$ sudo iptables -t nat -X
$ sudo iptables -t mangle -F
$ sudo iptables -t mangle -X
$ sudo iptables -P INPUT ACCEPT
$ sudo iptables -P FORWARD ACCEPT
$ sudo iptables -P OUTPUT ACCEPT
but still only port 22 is accessible. What could be the reason for this?
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netstat -plunt should show you that the web server is trying to listen on port 80 even if it is blocked by the firewall. Make sure the server is running. If it’s Apache, run:
service apache2 start
If it’s Nginx, then:
service nginx restart
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