This is mini how to on disabling ipv6 on CentOS 7 / RHEL 7, it can be disabled either by using sysctl.conf or by placing conf in the /etc/sysctl.d directory. CentOS 7 now supports disabling IPv6 for all or particular network adapter.
Edit the /etc/sysctl.conf.
# vi /etc/sysctl.conf |
Put the following entry to disable IPv6 for all adapter.
net.ipv6.conf.all.disable_ipv6 = 1 |
For particular adapter. (If the network card name is eno16777736).
net.ipv6.conf.eno16777736.disable_ipv6 = 1 |
To reflect the changes by executing the following command.
# sysctl -p |
Create file called disableipv6.conf in /etc/sysctl.d.
# vi /etc/sysctl.d/disableipv6.conf |
Put the following entry to disable IPv6 for all adapter
net.ipv6.conf.all.disable_ipv6 = 1 |
For particular adapter. (If the network card name is eno16777736).
net.ipv6.conf.eno16777736.disable_ipv6 = 1 |
You must reboot the server to take an effect of the changes.
# reboot |
That’s All.