Question regarding SYS FIREWALL

avijit

Hey guys,
I have total 2 questions.

1) Is any way to enable/disable SYS FIREWALL from Ubuntu SSH terminal?
2) Is any way to change SYS FIREWALL rules from Ubuntu SSH terminal?

Actually if due to any reason i lost my device ip then is any way to access aapanel after blocking all ip (excluding my old ip) from SYS FIREWALL?

aaPanel_Kern

avijit
Hello, the sys firewall is the firewall that uses the system.
Disable firewall: (there will be an error in one of the following commands, because the system only uses one of them)
systemctl stop ufw systemctl stop firewalld
Enable:
systemctl start ufw systemctl start firewalld
How to change the rules It is recommended that you delete the relevant rules and add them again.
Reference tutorial:
https://www.digitalocean.com/community/tutorials/how-to-set-up-a-firewall-with-ufw-on-ubuntu-20-04
https://fedoraproject.org/wiki/Firewalld

Can't access the panel?
Check if the port of the panel is open? https://dnschecker.org/port-scanner.php
Open the panel ports of the system firewall:

panelPort=7800
/sbin/ufw allow ${panelPort}/tcp
/sbin/ufw reload

panelPort=7800
firewall-cmd --permanent --zone=public --add-port=${panelPort}/tcp >/dev/null 2>&1
firewall-cmd --reload

Check if the panel is running: bt status