i before play with iptables
i disabled stoped ufw service
and enabled start iptables.service i experimenting with iptables
but now ufw not start when enabled
● ufw.service - CLI Netfilter Manager
Loaded: loaded (/usr/lib/systemd/system/ufw.service; enabled; vendor preset: disabled)
Active: active (exited) since Wed 2021-10-27 10:19:43 CEST; 31min ago
Process: 235 ExecStart=/usr/lib/ufw/ufw-init start (code=exited, status=0/SUCCESS)
Main PID: 235 (code=exited, status=0/SUCCESS)
CPU: 265ms
říj 27 10:19:43 adam-80ud systemd[1]: Finished CLI Netfilter Manager. Notice: journal has been rotated since unit was started, output may be incomplete.
It is worth noting that while ufw uses iptables to do its job, you should not enable
its service while using ufw.
While using the ufw service, do not enable iptables.service
It looks like ip6tables .service is preset to disabled on my system. In fact I have ipv6 disabled entirely on my system through a kernel parameter. It appears that your firewall is active and running from the output listed above.
All ufw extras is, is some preset rules that get applied when you install it. Setting rules in GUFW is easy. That is the whole point of the GUI for the firewall. So, you probably do not need “extras”.