Cubic

ufw fails to set in the new version

Asked by Larkin Broderick on 2021-04-05

Hello, I had some problems when set up the firewall(system:mint 20.1) using cubic 2021.03.47 version.
Can anyont help me on this?

when I use code: sudo ufw enable,
there were some errors: problem running ufw-init.

when I use code: sudo gufw,
it's said Can't operate, and there are no files in the folder: /etc/gufw

I need gufw.cfg,Home.profile,Office.profile and Public.profile been created automatically after use the code, then I could change their content.
but the newest version cubic fail to do that, 2021.03.45 and 2021.03.46 are also fail.
then I try the oldest version cubic(2020.02.62),it can be sucessful.

then I tried to copy gufw.cfg,Home.profile,Office.profile and Public.profile from another system to the customized system.
When the customized ISO was installed, firewall's window couldn't appear when I click the firewall configuration.

Could you solve the problems in the newset cubic? please help me.I tried many times to solve it but failed.
Thank you in advance.

Steps I processed:
root@cubic:~# sudo systemctl enable ufw
Synchronizing state of ufw.service with SysV service script with /lib/systemd/systemd-sysv-install.
Executing: /lib/systemd/systemd-sysv-install enable ufw
root@cubic:~# sudo ufw enable
ERROR: problem running ufw-init
iptables-restore v1.8.4 (legacy): iptables-restore: unable to initialize table 'filter'

Error occurred at line: 1
Try `iptables-restore -h' or 'iptables-restore --help' for more information.
iptables-restore v1.8.4 (legacy): iptables-restore: unable to initialize table 'filter'

Error occurred at line: 12
Try `iptables-restore -h' or 'iptables-restore --help' for more information.
iptables-restore v1.8.4 (legacy): iptables-restore: unable to initialize table 'filter'

Error occurred at line: 1
Try `iptables-restore -h' or 'iptables-restore --help' for more information.
iptables-restore v1.8.4 (legacy): iptables-restore: unable to initialize table 'filter'

Error occurred at line: 1
Try `iptables-restore -h' or 'iptables-restore --help' for more information.
sysctl: setting key "net.ipv4.conf.all.accept_redirects": Read-only file system
sysctl: setting key "net.ipv4.conf.default.accept_redirects": Read-only file system
sysctl: setting key "net.ipv6.conf.all.accept_redirects": Read-only file system
sysctl: setting key "net.ipv6.conf.default.accept_redirects": Read-only file system
sysctl: setting key "net.ipv4.icmp_echo_ignore_broadcasts": Read-only file system
sysctl: setting key "net.ipv4.icmp_ignore_bogus_error_responses": Read-only file system
sysctl: setting key "net.ipv4.icmp_echo_ignore_all": Read-only file system
sysctl: setting key "net.ipv4.conf.all.log_martians": Read-only file system
sysctl: setting key "net.ipv4.conf.default.log_martians": Read-only file system

Problem loading ipv6 (skipping)
Problem running '/etc/ufw/before.rules'
Problem running '/etc/ufw/after.rules'
Problem running '/etc/ufw/user.rules'

root@cubic:~# sudo ufw status
ERROR: problem running iptables: iptables v1.8.4 (legacy): can't initialize iptables table `filter': Permission denied (you must be root)
Perhaps iptables or your kernel needs to be upgraded.

root@cubic:~# sudo gufw
System has not been booted with systemd as init system (PID 1). Can't operate.
Failed to create bus connection: Host is down
System has not been booted with systemd as init system (PID 1). Can't operate.
Failed to create bus connection: Host is down
/usr/bin/gufw: line 2: [: =: unary operator expected
Error getting authority: Error initializing authority: Could not connect: No such file or directory