Skip to main content
All CollectionsTroubleshootingOthers
How to disable IPv6 on Ubuntu and Fedora Linux
How to disable IPv6 on Ubuntu and Fedora Linux
Richard avatar
Written by Richard
Updated over 2 years ago

Step 1

Proceed to Terminal application.


Step 2

Open /etc/sysctl.conf file on a text editor by entering this code: sudo gedit /etc/sysctl.conf


Step 3

Insert the following lines at the bottom section of the text file:

net.ipv6.conf.all.disable_ipv6 = 1
net.ipv6.conf.default.disable_ipv6 = 1
net.ipv6.conf.lo.disable_ipv6 = 1

Then click on Save.

*close the text editor after saving.


Step 4

Enter this code at the terminal: sudo sysctl -p


Step 5

Enter this code: cat /proc/sys/net/ipv6/conf/all/disable_ipv6


If you see an output of '1' then IPv6 has been successfully disabled.

Did this answer your question?