How to Disable IPv6 on Linux
Published on 2023-11-27
sysctl
Do not use the sysctlmethod. Other tutorials show it and IPv6 will just re-enable itself after packages update.
GRUB
sudo nano /etc/default/grub
Locate this like: GRUB_CMDLINE_LINUX_DEFAULT="quiet splash".
Add ipv6.disable=1.
Now, it will look like this: GRUB_CMDLINE_LINUX_DEFAULT="quiet splash ipv6.disable=1".
Press Ctrl + O then Enter.
Run: sudo update-grub
Restart your PC.