[Samba] Linux workstations lose relationship with domain

[Rowland penny]

On 23/03/2021 14:47, Denis Morejon via samba wrote:
> Thank you Rowland!
>
> I have another clue for my problem (The lost of domain relationship). 
> The problem began just after the change of time in my country on 
> Sunday. I changed the time manually on both domain servers
>
> (They use ntp for the clients to sync with they) and after that, on 
> Monday, some linux workstations lost the relationship. But you know 
> what? none of my Windows 10 workstations lost the domain relationship!
>
> We use pbis en Ubuntu 18.04 and Linux Mint 20 workstations to connect 
> to the domain. I suspect that the change of time was the cause. But 
> even changing the time on those linux workstations first (For some 
> reason ntp didn't work, but this is not the point right now), they 
> didn't connected to the domain! And It was necessary to join again 
> manually (One by one!).
>
> This is the smb.conf of a workstation that lost the domain ralationship
>
> [global]
>     server string = %h server (Samba, Ubuntu)
>    dns proxy = no
>    log file = /var/log/samba/log.%m
>    max log size = 1000
>    syslog = 0
>    panic action = /usr/share/samba/panic-action %d
>    server role = standalone server
>    obey pam restrictions = yes
>    unix password sync = yes
>    passwd program = /usr/bin/passwd %u
>    passwd chat = *Enter\snew\s*\spassword:* %n\n 
> *Retype\snew\s*\spassword:* %n\n *password\supdated\ssuccessfully* .
>    pam password change = yes
>    map to guest = bad user
>    usershare allow guests = yes
>
> [printers]
>    comment = All Printers
>    browseable = no
>    path = /var/spool/samba
>    printable = yes
>    create mask = 0700
>
> [print$]
>    comment = Printer Drivers
>    path = /var/lib/samba/printers
>

As we do not produce PBIS, we do not (cannot) provide support for it. 
Also that smb.conf is for a standalone server and, as such, it cannot be 
an AD domain member.

Is winbind running ?

Rowland