How to Disable IPv6 on Linux


Do not use the sysctlmethod. Other tutorials show it and IPv6 will just re-enable itself after packages update.


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.

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