Why does ufw stop opening sites via OpenVPN when turned on?

Question

linux

Hello.
Rented a VPS to install VPN and proxies.
OS: Debian 9. Installed UFW as a firewall.
OpenVPN uses port XXXX. Accordingly, I prescribed ufw allow XXXX. However, when you turn on ufw, sites stop loading (the connection itself occurs). The proxy also works.
With ufw disabled, everything works as it should.
Can you please tell me what I missed in the settings? Maybe there is some other port needed? There are currently 3 ports open: SSH, XXXX for OpenVPN and YYYY for proxies.

Answer 1

You /etc/default/ufwhave to writeDEFAULT_FORWARD_POLICY="ACCEPT"