Firewall how to add ipv4 port only?

gistapo

Hello, aaPanel support team.

When I try to add a port rule in the firewall, it does create two records, standard IPv4 and IPv6. How to add a port rule for IPv4 only? Also, when I try to remove IPv6 added automatically, it does remove IPv4 records as well.
OS: Ubuntu 24.04.2 LTS
aaPanel: 7.0.16

aaPanel_Kern

Hello, this is not supported at present, and the same is true for the operating system to directly release the port after executing commands.

gistapo

aaPanel_Kern How can I avoid these IPv6 records being created when I add a new port rule? Is it possible?

gistapo

Ok, as I understood, this is Ubuntu 24 OS-specific. To disable IPv6 rules, you need to disable it in the OS firewall. After that, only an IPv4 rule will be created when you add a new rule.

sudo nano /etc/default/ufw
IPV6=no

aaP_puskom

sorry i'm newbie at this, are there any downside when ipv6 active ?