Disable IPv6 in CentOS

From KlavoWiki
Jump to navigationJump to search

Apparently it is not recommended to per se disable IPv6 in CentOS. What we can do is unbind IPv6 from the network card.

/etc/sysctl.conf

Add the following lines

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

The above will be in effect after a reboot.

To unbind IPv6 on the system without a reboot and a temporary unbind until a reboot is performed.

echo 1 > /proc/sys/net/ipv6/conf/all/disable_ipv6
echo 1 > /proc/sys/net/ipv6/conf/default/disable_ipv6