# Troubleshooting
# Unable to connect to FTP
If you are unable to connect to FTP, please;
- If you have a firewall (local or external), allow the FTP passive port range inbound, 30000:31000.
# php websites cannot connect to the outside internet
If php websites cannot connect to the outside internet , please;
- Check you have not disabled the "ufw" firewall. This is required as it manages the outbound NAT which PHP containers use to connect to the internet. Run:
sudo ufw enable
# Websites on LiteSpeed 404
# Switching webserver type but the web server does not restart
If you change web server on the control panel server and the new web server cannot start, due to a licence issue or otherwise, you can use the CLI to switch back. Run:
appcd-cli 127.0.0.1 change-webserver apache