[Samba] IPv6 DNS Confusion

Christopher Roberts cjr at tridentgarages.co.uk
Mon Jun 29 08:36:33 MDT 2015


David

Thank you so much for your reply and my apologies for the lack of an
acknowledgment, whilst I made the necessary changes.

> Is your /64 a static prefix that does not change with time?

Yes.

> If it is, 
> then this probably means that you have temporary addresses configured 
> on your DC. Either scenarios are likely to cause a DNS update and add 
> new records. The old records should be deleted first. However, there 
> are issues with DDNS in the Samba Internal DNS server. This could be 
> the reason that they are not being deleted and old records remain in in
DNS.
> This is a bad thing. It is likely that this will not be a problem if 
> you were using BIND.

So would you recommend moving over to BIND?

> In the first instance, I would make sure that you have static 
> addresses on your DC and manually remove the old addresses.

Okay, that's done.

> Be aware then when deleting IPv6 addresses in DNS using the samba-tool 
> you cannot use the canonical form of the IPv6 address, you must write 
> it out in full. See my presentation from Samba XP 2015 at 
> http://www.ipv6consultancy.com/ipv6blog/?p=100.

I used the Windows MMC DNS snap in, and deleted all the relevant records in
one hit. Seems to have worked, at least no obvious issues so far and I seem
to be pinging happily via ipv6 now.

Thank you so much for your help.

Kind regards,

Chris. 




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