Hi @Gytis , I try it with VIM1. If you enable UFW failure. you maybe need to do something to setup it.
This is my step . I hope it can help you.
Frist I install ufw in my VIM1. Then I run command ufw status & ufw enable.
root@Khadas:~# ufw enable
ERROR: problem running ufw-init
iptables-restore: line 11 failed
ip6tables-restore: line 138 failed
Problem running '/etc/ufw/user.rules'
Problem running '/etc/ufw/before6.rules'
root@Khadas:~# ufw status
Status: active
It look nothing that you should setup it.
- setup with default
root@Khadas:~# ufw disable
Firewall stopped and disabled on system startup
root@Khadas:~# ufw default deny incoming
Default incoming policy changed to 'deny'
(be sure to update your rules accordingly)
root@Khadas:~# ufw default allow outgoing
Default outgoing policy changed to 'allow'
(be sure to update your rules accordingly)
root@Khadas:~# ufw default deny outgoing
Default outgoing policy changed to 'deny'
(be sure to update your rules accordingly)
- allow Connections
root@Khadas:~# ufw allow ssh
Skipping adding existing rule
Skipping adding existing rule (v6)
root@Khadas:~# ufw allow 22
Skipping adding existing rule
Skipping adding existing rule (v6)
root@Khadas:~# ufw allow 22/tcp
Skipping adding existing rule
Skipping adding existing rule (v6)
root@Khadas:~# ufw status
Status: inactive
root@Khadas:~# ufw enable
ERROR: problem running ufw-init
iptables-restore: line 35 failed
ip6tables-restore: line 138 failed
ip6tables-restore: line 35 failed
Problem running '/etc/ufw/user.rules'
Problem running '/etc/ufw/before6.rules'
Problem running '/etc/ufw/user6.rules'
root@Khadas:~# ufw status
Status: active
To Action From
-- ------ ----
22/tcp ALLOW Anywhere
22 ALLOW Anywhere
22/tcp (v6) ALLOW Anywhere (v6)
22 (v6) ALLOW Anywhere (v6)
root@Khadas:~#
you can see the error still exists,but it just about user config. If you want to solve it ,you can modify the rules file.
- Then I reboot it.
root@Khadas:~# ufw status
Status: inactive
root@Khadas:~# ufw enable
ERROR: problem running ufw-init
iptables-restore: line 35 failed
ip6tables-restore: line 138 failed
ip6tables-restore: line 35 failed
Problem running '/etc/ufw/user.rules'
Problem running '/etc/ufw/before6.rules'
Problem running '/etc/ufw/user6.rules'
root@Khadas:~# ufw status
Status: active
To Action From
-- ------ ----
22/tcp ALLOW Anywhere
22 ALLOW Anywhere
22/tcp (v6) ALLOW Anywhere (v6)
22 (v6) ALLOW Anywhere (v6)
You can see that it can run after reboot.