I’ve had experiences with certain software manipulating iptables behind ufw and those changes do not show up when I viewed ufw’s status.
Docker is a well known example of this. Simply searching docker ufw in a search engine will bring up this issue immediately. I’ve also had experiences with cloudflared (the program used for cloudflare’s tunnel service) manipulating iptables behind ufw as well.
It’s possible the vpn is doing something similar.
I’m beginning to learn to check iptables as well when it comes to troubleshooting network issues.
I’ve had experiences with certain software manipulating iptables behind ufw and those changes do not show up when I viewed ufw’s status.
Docker is a well known example of this. Simply searching
docker ufw
in a search engine will bring up this issue immediately. I’ve also had experiences with cloudflared (the program used for cloudflare’s tunnel service) manipulating iptables behind ufw as well.It’s possible the vpn is doing something similar.
I’m beginning to learn to check iptables as well when it comes to troubleshooting network issues.