Hi Personne.

SSSD by default uses the address from the interface that is used when communicating to IPA or AD.

See man sssd-ad and sssd-ipa:

dyndns_update (boolean) (this is from IPA)

    ....

    The IP address of the IPA LDAP connection is used for the updates, if it is
    not otherwise specified by using the dyndns_iface option.

    ....

HTH

Tom

On Mon, Mar 22, 2021 at 2:52 PM Pawel Polawski <ppolawsk@redhat.com> wrote:

Hi Personne,

Please take a look at this blog post [1], it refers to an older version of SSSD but may be useful for you.

[1] https://preichl.wordpress.com/2015/08/09/dynamic-dns-updates-in-sssd/

Best regards,

Pawel

On Mon, Mar 22, 2021 at 2:20 PM Justin Stephenson <jstephen@redhat.com> wrote:

Are you looking for the `dyndns_iface` option? It should be mentioned
in the `sssd-ipa`, or `sssd-ad` man page. I'm not aware of any article
specifically about working with multiple NICs.

-Justin

On Sun, Mar 21, 2021 at 7:35 PM Personne <cpdivers@gmail.com> wrote:
>
> Hello,
>
> I'm currently using an older version of SSSD 1.13 on Centos 6, we are migrating to Centos 7, and I was thinking of enabling dynamic DNS update.
>
> My problem is our servers do have multiple NIC from 1 to 6.
>
> Is there an article somewhere explaining how SSSD works with multiple NIC ?
> Since I was not able to find any complete doc about this yet.
> - Is it possible to tell SSSD to dynamic DNS eth0 and eth5 ?
> - Is it possible to tell SSSD to dynamic DNS all eth, and add a suffix with the ID NIC such as : server1-eth0 .test.com / server1-eth2 .test.com, etc....
>
> Thank you
>
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Paweł Poławski

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