Disable IPV6

How to disable IPV6

Open a terminal and type

sudo gedit /etc/sysconfig/network

Add this line to the bottom of the file

NETWORKING_IPV6=no

Save the file and close. Type

sudo gedit /etc/modprobe.d/blacklist

Add this line to the bottom of the file

blacklist ipv6

Save the file and close. Type

sudo system-config-network

You will see the following screen

Select the edit button and you see this screen

Make sure that Enable IPv6 configuration for this device is un-checked.

I read, on the web "somewhere", that the command

ip a | grep -i ipv6

is a means for testing whether IPV6 is truly disabled or not. Run the command and if there is no output then IPV6 is in fact off.

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