Hi,
I need a software to manage Iptable rules, of course I can set manually but I’m not a big expert and of course there will be a significant probability to make mistakes .
I would use a software and than manually control the code .
How do you do this setup on Firewall ? Only manually or by help software ?
i think u r searching for this:-
https://help.ubuntu.com/community/Gufw
https://help.ubuntu.com/community/UFW
related
Thanks, I knew UFW but I though you used more complicated tools .
However, I’m writing the Iptables rules for my need ( VPN and others ), I’ll post here it, maybe among some month 
.
from this i thought u r searching for something easy to handle. which where gufw&ufw solve it for u.
something harder/complex then use = iptables