How to remove IPv6 on Red Hat nodes

Submitted by Aleksey Tsalolikhin on Sun, 2008-02-03 14:52.Linux

Picked up this tid-bit on how to disable IPv6 (which aligns with the general sys admin philosophy of "if we are not using it, remove it or turn it off to simplify the system and increase security":

(1) Edit /etc/sysconfig/network and set NETWORKING_IPV6=no.

(2) Issue the following command as root: 'chkconfig ip6tables off'.

(3) Reboot the host machine.

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Submitted by Martin Marcher on Sat, 2008-05-17 04:39.

In the mid to long term view shouldn't you rather enable IPv6 properly on all hosts properly given the upcoming problems rather than disable it?

I for myself try to to do a soft migration in terms of putting as much info as possible in my personal documentation whenever I find a problem converning IPv6. And I do it in a way so that it will work with IPv6 rather than work because I disabled it?

Submitted by Aleksey Tsalolikhin on Fri, 2008-05-23 11:18.

Dear Martin,

Thank you for your comment.

We disable IPv6 from a security viewpoint of removing unused functionality to minimize potential vulnerabilities.

Once IPv6 starts being used, it is easy enough to re-enable it.

If you are using IPv6 already, I'd be curious to hear about it.

Best regards,
Aleksey