x3inspire
Hello,
iptables -F is to clear the system firewall configuration, try the following command to open the port,
where 7800 is the default panel port 22 is the default SSH port please change it to your own port
iptables -I INPUT -p tcp -m state --state NEW -m tcp --dport 80 -j ACCEPT
iptables -I INPUT -p tcp -m state --state NEW -m tcp --dport 443 -j ACCEPT
iptables -I INPUT -p tcp -m state --state NEW -m tcp --dport 7800 -j ACCEPT
iptables -I INPUT -p tcp -m state --state NEW -m tcp --dport 22 -j ACCEPT
service iptables save
service iptables restart