[Samba] A computer in the Domain got stuck with and old username

[Rowland Penny]

On Mon, 29 Jan 2024 19:18:36 +0100
"Dr. Nicola Mingotti via samba" <samba at lists.samba.org> wrote:

> Hi all,
> 
> ==== SETUP ====
> I have a samba AC/DC in Debian stable. Several Windows client and a
> few Linux/Debian-stable client in the domain, one of those client is
> called CORE1 and it is giving problems.
> 
> ==== THE FACT ====
> 2 weeks ago i changed all the Domain user names to a standardized 
> "name.lastname"
> 
> ==== PROBLEM ====
> One computer, CORE1, which runs Jupyter, got stuck with an old
> username. To be more precise, my old username was 'WINDOM\nicola', my
> new username is 'WINDOM\nicola.mingotti'.
> CORE1 does not see the new user and still things 'WINDOM\nicola' is 
> available.
> 
> ==== WAHT I SEE ====
> . From 2 computers in the Domain, CORE1 and NAS, NAS is right, CORE1
> is wrong
> foo at core1> getent passwd | grep nic
> WINDOM\nicola:*:11103:10513::/home/WINDOM-nicola:/bin/bash
> 
> foo at nas> getent passwd | grep nic
> WINDOM\nicola.mingotti:*:11103:10513:Nicola 
> Mingotti:/home/WINDOM-nicola.mingotti:/bin/bash
> 
> === WHAT I TRIED ====
> 1] I tried to get out from the domain and in again => not working
> foo at core1> sudo net ads leave -U XXX
> foo at core1> suod net ads join -U XXX
> 
> 2] I tried to inspect with opensnoop what getent is looking at
> $> sudo opensnoop-bpfcc
> I saw some systemd got involved so i changed nsswitch.conf like this
> and reboot
> ---- /etc/nsswitch.conf ------
> passwd:         files winbind    # before has also systemd
> group:          files winbind    # before had also systemd
> shadow:         files
> -------------------------------
> 
> After every major change I rebooted.
> 
> Do you have any ideas ? I am stuck
> 
> bye
> Nicola

Have you tried running 'net cache flush' (as root) on core1 ?

Rowland