[Samba] Service Winbind stopped, what could be the reason ?

[Edouard Guigné]

Hello Rowland,

I had a look on message log, when the winbind stopped.
I found that an system update occured during the night, and then Winbind 
did not restart properly.

...
/Apr 28 04:33:08 [localhost] yum[1232]: Mis à jour : 
samba-winbind-clients.x86_64 4.10.4-10.el7//
//Apr 28 04:33:08 [localhost] yum[1232]: Mis à jour : 
samba-winbind-krb5-locator.x86_64 4.10.4-10.el7//
//Apr 28 04:33:09 [localhost] yum[1232]: Mis à jour : samba.x86_64 
4.10.4-10.el7/

...

/Apr 28 08:07:53 [localhost] systemd-logind: New session 79900 of user 
root.//
//Apr 28 08:08:26 [localhost] systemd: Starting Samba SMB Daemon...//
//Apr 28 08:08:26 [localhost] smbd[4611]: [2020/04/28 08:08:26.248346,  
0] ../../lib/util/become_daemon.c:136(daemon_ready)//
//Apr 28 08:08:26 [localhost] smbd[4611]:  daemon_ready: daemon 'smbd' 
finished starting up and ready to serve connections//
//Apr 28 08:08:26 [localhost] systemd: Started Samba SMB Daemon.//
/*/Apr 28 08:08:51 [localhost] smbd[4625]: [2020/04/28 08:08:51.228010,  
0] ../../source3/auth/auth_winbind.c:122(check_winbind_security)/**/
/**/Apr 28 08:08:51 [localhost] smbd[4625]: check_winbind_security: 
winbindd not running - but required as domain member: 
NT_STATUS_NO_LOGON_SERVERS/**/
/**/Apr 28 08:08:51 [localhost] smbd[4626]: [2020/04/28 
08:08:51.251448,  0] 
../../source3/auth/auth_winbind.c:122(check_winbind_security)/**/
/**/Apr 28 08:08:51 [localhost] smbd[4626]: check_winbind_security: 
winbindd not running - but required as domain member: 
NT_STATUS_NO_LOGON_SERVERS/*

...

When I restarted Winbind :
/Apr 28 08:15:01 [localhost] systemd: Started Session 79902 of user root.//
//Apr 28 08:15:18 [localhost] systemd: Stopping Samba Winbind Daemon...//
//Apr 28 08:15:18 [localhost] winbindd[3915]: [2020/04/28 
08:15:18.356936,  0] 
../source3/winbindd/winbindd.c:239(winbindd_sig_term_handler)//
//Apr 28 08:15:18 [localhost] winbindd[3915]:  Got sig[15] terminate 
(is_parent=1)//
//Apr 28 08:15:18 [localhost] winbindd[4084]: [2020/04/28 
08:15:18.357134,  0] 
../source3/winbindd/winbindd.c:239(winbindd_sig_term_handler)//
//Apr 28 08:15:18 [localhost] winbindd[4084]:  Got sig[15] terminate 
(is_parent=0)//
//Apr 28 08:15:18 [localhost] winbindd[4279]: [2020/04/28 
08:15:18.357085,  0] 
../source3/winbindd/winbindd.c:239(winbindd_sig_term_handler)//
//Apr 28 08:15:18 [localhost] winbindd[4279]:  Got sig[15] terminate 
(is_parent=0)//
//Apr 28 08:15:18 [localhost] winbindd[4082]: [2020/04/28 
08:15:18.368710,  0] 
../source3/winbindd/winbindd.c:239(winbindd_sig_term_handler)//
//Apr 28 08:15:18 [localhost] winbindd[4082]:  Got sig[15] terminate 
(is_parent=0)//
//Apr 28 08:15:18 [localhost] winbindd[4022]: [2020/04/28 
08:15:18.357031,  0] 
../source3/winbindd/winbindd.c:239(winbindd_sig_term_handler)//
//Apr 28 08:15:18 [localhost] winbindd[4022]:  Got sig[15] terminate 
(is_parent=0)//
//Apr 28 08:15:18 [localhost] winbindd[4075]: [2020/04/28 
08:15:18.371589,  0] 
../source3/winbindd/winbindd.c:239(winbindd_sig_term_handler)//
//Apr 28 08:15:18 [localhost] winbindd[4075]:  Got sig[15] terminate 
(is_parent=0)//
//Apr 28 08:15:18 [localhost] systemd: Stopped Samba Winbind Daemon.//
//Apr 28 08:15:18 [localhost] systemd: Starting Samba Winbind Daemon...//
//Apr 28 08:15:18 [localhost] winbindd[4731]: [2020/04/28 
08:15:18.896997,  0] 
../../source3/winbindd/winbindd_cache.c:3166(initialize_winbindd_cache)//
//Apr 28 08:15:18 [localhost] winbindd[4731]: initialize_winbindd_cache: 
clearing cache and re-creating with version number 2//
//Apr 28 08:15:18 [localhost] winbindd[4731]: [2020/04/28 
08:15:18.915444,  0] ../../lib/util/become_daemon.c:136(daemon_ready)//
//Apr 28 08:15:18 [localhost] winbindd[4731]:  daemon_ready: daemon 
'winbindd' finished starting up and ready to serve connections//
//Apr 28 08:15:18 [localhost] systemd: Started Samba Winbind Daemon./

Can it sometimes happen that winbind do not restart properly after 
automatic system update ?

Best regards,
Ed


Le 28/04/2020 à 13:11, Rowland penny via samba a écrit :
> On 28/04/2020 16:25, Edouard Guigné wrote:
>> Dear Rowland,
>>
>> Please find a dump of smb.conf and resolv.conf of my centos 7 server :
>>
> Nothing really wrong in your smb.conf, except:
>
>         winbind nss info = rfc2307
>
> That isn't used any more.
>
>        cups options = raw
>
> You have turned printing off
>
>         valid users = "@MYAD\utilisateurs du domaine"
>
> Your workgroup is 'IPGAD' so 'MYAD' should be 'IPGAD', but even better 
> would be to set the permissions from windows.
>
> Your major problem is your resolv.conf, it should have a line:
>
> search myad.mydomain.fr
>
> I take it that your computer gets its dns info via DHCP, so you need 
> to find out how to ensure that network manager creates that line in 
> resolv.conf.
>
> Rowland
>
>
>