[Freeipa-users] V6 and v4

[Janelle]

On 9/13/15 11:46 PM, Alexander Bokovoy wrote:
> On Sun, 13 Sep 2015, Janelle wrote:
>> Hello,
>>
>> I read something recently that if ip v6 is disable on a server this
>> hurts performance in some way? Is there more info on this or did I
>> misread it?
> Do not disable IPv6 stack on your machines. By disabling IPv6 you are
> not doing good. On contrary, many contemporary software projects are
> using IPv6-enabled network calls by default because both IPv6 and IPv4
> share the same name space on the machine so you only need to listen on a
> IPv6 port to accept both IPv4 and IPv6. This is a recommended approach
> for networking applications' developers for years already.
>
> Note that this means only that support for IPv6 stack is enabled in the
> kernel. You are not required to go with IPv6 networking addresses, this
> is not really needed if you don't want to. But allowing applications to
> be IPv6 aware is required.
>
> FreeIPA has several components which are programmed in such way that
> they expect IPv6 stack to be enabled for reasons outlined above. If you
> disable IPv6 stack, FreeIPA will partially malfunction and will not
> really be in a supported state, especially when we are talking about
> trusts to Active Directory (and, in future, IPA to IPA trust).
>
BTW - I did re-enable IPv6 and was able to "clean ruv" all the "dead" 
entries, which I had not been able to do before. Thank you for this.

~J