I think the Azure Rules are actually working because when I stopped the rules for 80 and 443 the server was indeed not reachable anymore. So, I think the rules are getting applied.
lsof -n -i :8443: No output
ss -n | grep 8443: No output
iptables -L -n -v:
Chain INPUT (policy ACCEPT 0 packets, 0 bytes)
pkts bytes target prot opt in out source destination
Chain FORWARD (policy ACCEPT 0 packets, 0 bytes)
pkts bytes target prot opt in out source destination
Chain OUTPUT (policy ACCEPT 0 packets, 0 bytes)
pkts bytes target prot opt in out source destination
I think that means that no FW are applied by the VM itself. So, not sure which thing is actually blocking it.
If it helps, this is the DevTools output:
