lucioguappo I've installed it on my mail server, and it's running smoothly. On Ubuntu 24.04 LTS, I also noticed that nftables (iptables-nft) is being used as the firewall backend.
root@MX:~# sudo nft list ruleset
# Warning: table ip filter is managed by iptables-nft, do not touch!
It means that the system is running iptables/UFW using the nftables backend.
iptables-nft = This is a compatibility layer that converts the old iptables rules and applies them using nftables in the background.- In short, UFW and iptables commands you run are not using the old iptables system; they are using nftables under the hood.
