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Edouard Guigné

2020-Apr-28 15:25 UTC

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

Dear Rowland,

Please find a dump of smb.conf and resolv.conf of my centos 7 server :

# testparm
Load smb config files from /etc/samba/smb.conf
Loaded services file OK.
Server role: ROLE_DOMAIN_MEMBER

Press enter to see a dump of your service definitions

# Global parameters
[global]
        client min protocol = SMB2
        client signing = required
        disable spoolss = Yes
        domain master = No
        kerberos method = secrets and keytab
        load printers = No
        local master = No
        log file = /var/log/samba/%m.log
        preferred master = No
        printcap name = /dev/null
        realm = MYAD.MYDOMAIN.FR
        security = ADS
        server min protocol = SMB2_02
        server signing = required
        winbind nss info = rfc2307
        winbind use default domain = Yes
        workgroup = IPGAD
        idmap config ipgad : unix_primary_group = yes
        idmap config ipgad : unix_nss_info = yes
        idmap config ipgad : range = 10000 - 14999
        idmap config ipgad : schema_mode = rfc2307
        idmap config ipgad : backend = ad
        idmap config * : range = 15000-99999
        idmap config * : backend = tdb
        cups options = raw
        hosts allow = 127. 10.9.8. 10.9.7. 10.9.2. 10.9.4. 10.9.5.
        hosts deny = 10.9.9. 10.9.10.
        map acl inherit = Yes
        use sendfile = Yes
        vfs objects = acl_xattr


[groups]
        comment = jaguar2
        path = /var/datashared
        read only = No
        valid users = "@MYAD\utilisateurs du domaine"
        vfs objects = acl_xattr streams_xattr shadow_copy2
        shadow:format = daily_%Y.%m.%d-%H.%M.%S
        shadow:localtime = yes
        shadow:sort = desc
        shadow:basedir = /var/datashared
        shadow:snapdir = /data/datashared/snapshots


[homes]
        browseable = No
        comment = Home Directories
        create mask = 0700
        directory mask = 0700
        hide files = /~*.tmp/profile/desktop.ini/~$*/
        path = /home
        read only = No
        valid users = %S


[printers]
        browseable = No
        comment = All Printers
        create mask = 0600
        path = /var/tmp
        printable = Yes


[print$]
        comment = Printer Drivers
        create mask = 0664
        directory mask = 0775
        path = /var/lib/samba/drivers
        write list = root

# cat /etc/resolv.conf
# Generated by NetworkManager
nameserver 10.9.x.xx1
nameserver 10.9.x.xx2

10.9.x.xx1 is the ip of first domain controler, 10.9.x.xx2 is the ip of the
second domain controler.

I notice that "domain" is not mentioned in resolv.conf ; so domain
machine by short hostname is not possible for this reason ?

Best Regards,
Ed

----- Mail original -----
De: "sambalist" <samba at lists.samba.org>
?: "sambalist" <samba at lists.samba.org>
Envoy?: Mardi 28 Avril 2020 12:08:44
Objet: Re: [Samba] Service Winbind stopped, what could be the reason ?

On 28/04/2020 15:35, Edouard Guign? via samba wrote:> Hello dear Samba users,
>
> I recently faced an issue with samba (4.10.4) and winbind.
> The winbind service was stopped, so no user can acces to my samba share.
> I restart the winbind service, and all users can access to the share as
usually...
> But I would like to understand why this issue occured.
>
> My samba server is a centos 7 linux, configured as domain member to a
microsoft AD (windows server 2012 R2).
> All services (samba, winbind) are in automatic, started with linux start,
and should always remained started.
>
> In winbindd.log, there are many entries like :
> [2020/04/27 08:20:14.167335, 1] ../source3/lib/util.c:1700(name_to_fqdn)
> getaddrinfo: ?chec temporaire dans la r?solution du nom
>
> On my Centos 7 samba server, the DNS resolution works only for fulled
qualified name :
> ping workstation1
> ping: workstation1 : ?chec temporaire dans la r?solution du nom
> but
> ping workstation1.mydomain.fr
> 64 bytes from workstation1!.mydomain.fr (10.9.x.x): icmp_seq=1 ttl=127
time=1.58 ms
> 64 bytes from workstation1!.mydomain.fr (10.9.x.x): icmp_seq=2 ttl=127
time=1.33 ms
> 64 bytes from workstation1!.mydomain.fr (10.9.x.x): icmp_seq=3 ttl=127
time=1.04 ms
>
> Can it be the explanation why winbind has stopped ?
>
> Do I have to add "domain=mydomain.fr" in
/etc/sysconfig/network-scripts/ifcfg-eth0 of my centos 7 server network adapter
?
> May it help Winbind for DNS resolving ?
>
> Best Regards,
> Ed
Please post your smb.conf and /etc/resolv.conf

You must be able to ping any domain machine by short hostname, FQDN or IP.

Rowland



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Rowland penny

2020-Apr-28 16:11 UTC

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

On 28/04/2020 16:25, Edouard Guign? 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

Edouard Guigné

2020-Apr-28 16:43 UTC

head link

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

Hello,

Thank you Rowland,

Yes, I wanted to anonymize smb.conf and missed to change IPGAD in MYAD on some
lines, sorry

Does "winbind nss info = rfc2307" is not used anymore, because of
"idmap config ipgad : schema_mode = rfc2307" ?

Best Regards,
Ed

----- Mail original -----
De: "sambalist" <samba at lists.samba.org>
?: "sambalist" <samba at lists.samba.org>
Envoy?: Mardi 28 Avril 2020 13:11:11
Objet: Re: [Samba] Service Winbind stopped, what could be the reason ?

On 28/04/2020 16:25, Edouard Guign? 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

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Edouard Guigné

2020-Apr-30 14:11 UTC

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

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 ? jour?: 
samba-winbind-clients.x86_64 4.10.4-10.el7//
//Apr 28 04:33:08 [localhost] yum[1232]: Mis ? jour?: 
samba-winbind-krb5-locator.x86_64 4.10.4-10.el7//
//Apr 28 04:33:09 [localhost] yum[1232]: Mis ? 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 ? 13:11, Rowland penny via samba a ?crit?:> On 28/04/2020 16:25, Edouard Guign? 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
>
>
>

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