[Samba] domain member file server failed after upgrade from 4.11.14 to 4.13.2

[Rowland penny]

On 23/11/2020 17:37, MORILLO Jordi via samba wrote:
> Hi Rowland,
> Sorry to inform that none of thus packages solve my problem.
>
> But today, with some Tranquil.it helps, I have some news:
>
> - Upgrade from 4.11.14 -> 4.12.9 is OK
> - Upgrade from 4.12.9 -> 4.13.2 : problem is present with Tranquil.it AND Louis package
> - Fresh install + member join with 4.13.2 is OK (Centos AND Buster packages)
>
> Problem only occur when upgrading member to 4.13.2 with Windows 2016 DC.
> Here is some interesting parts of net ads testjoin -d99 between 4.11.14 and 4.13.2:
>
> 4.11.14 (working)
> [...]
> sitename_fetch: Returning sitename for realm 'EDUC-FOR.LOCAL': "Siege"
> resolve_and_ping_dns: (cldap) looking for realm 'EDUC-FOR.LOCAL'
> get_sorted_dc_list: attempting lookup for name EDUC-FOR.LOCAL (sitename Siege)
> saf_fetch: Returning "Palpatine.educ-for.local" for "EDUC-FOR.LOCAL" domain
> get_dc_list: preferred server list: "Palpatine.educ-for.local, *"
> internal_resolve_name: looking up EDUC-FOR.LOCAL#1c (sitename Siege)
> name EDUC-FOR.LOCAL#1C found.
> [...]
>
> 4.13.2 (failed)
> sitename_fetch: Returning sitename for realm 'EDUC-FOR.LOCAL': "Siege"
> resolve_and_ping_dns: (cldap) looking for realm 'EDUC-FOR.LOCAL'
> get_sorted_dc_list: attempting lookup for name EDUC-FOR.LOCAL (sitename Siege)
> saf_fetch: failed to find server for "EDUC-FOR.LOCAL" domain
> get_dc_list: preferred server list: ", *"
> internal_resolve_name: looking up EDUC-FOR.LOCAL#1c (sitename Siege)
> gencache_set_data_blob: Adding cache entry with key=[NBT/EDUC-FOR.LOCAL#1C] and timeout=[jeu. janv.  1 01:00:00 1970 CET] (-1606149379 seconds in the past)
> no entry for EDUC-FOR.LOCAL#1C found.
> resolve_ads: Attempting to resolve DCs for EDUC-FOR.LOCAL using DNS
>
Hmm, '1C' is a SMB1 thing, I wonder if the 2016 DC has SMBv1 turned off ?

It seems to be a problem that involves the 2016 DC, 4.13.2 works against 
an AD DC.

Rowland