samba - Sep 2018 - winbindd crashing -- how to auto-heal?

On Sat, Sep 1, 2018 at 1:06 PM Rowland Penny via samba <
samba at lists.samba.org> wrote:
> On Sat, 1 Sep 2018 12:39:53 -0400
> Jamie Jackson <jamiejaxon at gmail.com> wrote:
>
> > I'm not a sysadmin (so I don't have domain admin skills),
I'm just
> > coming at this as a user of these (flaky) hosts, but I'll try to
> > answer the questions.
> >
> > If autorid is an odd/problematic setting, I can pass that info on to
> > the sysadmins. I looked at
> > https://lists.samba.org/archive/samba/2015-May/191544.html (since I
> > don't really know the difference between these settings), but I
don't
> > know how many back-end AD servers there are. BTW, *is* the autoid
> > setting potentially problematic?
>
> It shouldn't be a problem, but I have never used it and I think it has
> more place in a set up with multiple domains.
> There are a few different backends, but the main ones are 'ad',
'rid'
> and 'autorid'.
>
> The first ('ad') requires adding rfc2307 attributes to AD,
> The other two don't, they calculate the Unix ID's from domain
RID's
> You can find more info here:
>
> https://wiki.samba.org/index.php/Setting_up_Samba_as_a_Domain_Member
>
> >
> > I'm also not sure how to know is sssd is in use or not, so these
are
> > the things I thought to try:
> >
> > $ systemctl -a | grep '\(smb\|samba\|sssd\|winbind\)'
> >   winbind.service
> >                                        loaded    active   running
> > Samba Winbind Daemon
> > $ sssd --help
> > -bash: sssd: command not found
> > $ sudo find / -xdev -name 'sssd.conf'
> > $
> >
>
> No it looks like sssd isn't installed, which is a good thing as it has
> its own version of some of the winbind libs and these could have been
> interfering with winbind.
>
> What is the DC(s) ?

It (they?) is/are windows active directory, but let me know if you need
more info than that. (I'm not sure how to look that up in config files, but
I could ask the sysadmins on Monday.)

> I think you need to increase the log level in smb.conf, try changing
> the '0' to '3' and see if anything pops out.
>
Would it be preferable to bump up `log level = 1` to 3 or `syslog = 0` to 3?

> Rowland
>
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On Sat, 1 Sep 2018 14:00:49 -0400
Jamie Jackson <jamiejaxon at gmail.com> wrote:
> > What is the DC(s) ?
> 
> 
> It (they?) is/are windows active directory, but let me know if you
> need more info than that. (I'm not sure how to look that up in config
> files, but I could ask the sysadmins on Monday.)
Just checking if Samba or Windows, might have a bearing.
> 
> 
> > I think you need to increase the log level in smb.conf, try changing
> > the '0' to '3' and see if anything pops out.
> >
> 
> Would it be preferable to bump up `log level = 1` to 3 or `syslog > 0`
to 3?
'log level'

Rowland

On Sat, Sep 1, 2018 at 2:09 PM Rowland Penny via samba <
samba at lists.samba.org> wrote:
> On Sat, 1 Sep 2018 14:00:49 -0400
> Jamie Jackson <jamiejaxon at gmail.com> wrote:
>
> > > What is the DC(s) ?
> >
> >
> > It (they?) is/are windows active directory, but let me know if you
> > need more info than that. (I'm not sure how to look that up in
config
> > files, but I could ask the sysadmins on Monday.)
>
> Just checking if Samba or Windows, might have a bearing.
>
> >
> >
> > > I think you need to increase the log level in smb.conf, try
changing
> > > the '0' to '3' and see if anything pops out.
> > >
> >
> > Would it be preferable to bump up `log level = 1` to 3 or `syslog >
> 0` to 3?
>
> 'log level'
>
Okay, it's set and winbindd is restarted. I guess now I wait for it to fail
again and see what's in the logs.

>
> Rowland
>
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>