Firewall Centos 7
sudo systemctl enable firewalld sudo systemctl start firewalld sudo firewall-cmd --add-port=80/tcp --permanent sudo firewall-cmd --add-forward-port=port=80:proto=tcp:toaddr=127.0.0.1:toport=8080 --permanent sudo firewall-cmd --reload sudo systemctl status firewalld sudo firewall-cmd --list-all