[Samba] Bind creates a situation where SSSD Crashes du to samba_dnsupdate

[Zombie Ryushu]

On 6/5/22 16:01, Rowland Penny via samba wrote:
> On Sun, 2022-06-05 at 15:42 -0400, Zombie Ryushu via samba wrote:
>>>
>> The SSSD Daemon will crash with an Assertion failure if a DNS Entry
>> exists in Bind where in an Internal Domain in the 192.168.0.x subnet
>> points to a specific Domain. Such as:
>>
>> pukey IN A 192.168.0.4.
> There aren't supposed to be any dns entries in bind9 when using Samba
> AD, they are supposed to be in AD.
>
>> Jun 05 15:23:15 olympia sssd[15008]: sssd_be: io.c:224: ber_flush2:
>> Assertion `SOCKBUF_VALID( sb )' failed.
>> Jun 05 15:23:15 olympia be[15184]: Starting up
>> Jun 05 15:23:25 olympia sssd[15184]: sssd_be: io.c:224: ber_flush2:
>> Assertion `SOCKBUF_VALID( sb )' failed.
>> Jun 05 15:23:27 olympia be[15194]: Starting up
>> Jun 05 15:23:37 olympia sssd[15194]: sssd_be: io.c:224: ber_flush2:
>> Assertion `SOCKBUF_VALID( sb )' failed.
>> Jun 05 15:23:41 olympia be[15219]: Starting up
>>
>> This is the error produced. sssd will cease functioning until the
>> DNS
>> Entry is removed.
>>
>> Active: failed (Result: exit-code) since Sun 2022-06-05 15:23:52
>> EDT;
>> 33s ago
>>       Process: 14997 ExecStart=/usr/sbin/sssd -i ${DEBUG_LOGGER}
>> (code=exited, status=1/FAILURE)
>>      Main PID: 14997 (code=exited, status=1/FAILURE)
> I am sorry, but sssd is not part of Samba, I suggest you report this to
> the sssd-users mailing list.
>
>> samba_dnsupdate will cause this to happen.
> It is supposed to.
>
> Rowland
>
>
>
I do use Samba Bind DLZ now. This is one of the side effects, that an 
entry like this appears.

It causes sssd to crash, and olympia.pukey to become unresolvable. I 
wasn't copy pasting anything, I was just telling you what this would 
look like in a Zone file.

Note that none of this has solved my initial problem. Only created new ones.