[Samba] winbindd not starting cleanly when Centos 7 boots

[Brady, Mike]

On 2015-09-11 08:40, Jim Long wrote:
> I am a longtime BSD user but new to CentOS.
> 
> I have winbindd configured to start automatically:
> 
> # ls -l $(locate winbind | grep service)
> lrwxrwxrwx. 1 root root  39 Aug 20 12:29
> /etc/systemd/system/multi-user.target.wants/winbind.service ->
> /usr/lib/systemd/system/winbind.service
> -rw-r--r--. 1 root root 362 May 12 13:19 
> /usr/lib/systemd/system/winbind.service
> # cat /usr/lib/systemd/system/winbind.service
> [Unit]
> Description=Samba Winbind Daemon
> After=syslog.target network.target nmb.service
> 
> [Service]
> Environment=KRB5CCNAME=/run/samba/krb5cc_samba
> Type=notify
> NotifyAccess=all
> PIDFile=/run/winbindd.pid
> EnvironmentFile=-/etc/sysconfig/samba
> ExecStart=/usr/sbin/winbindd "$WINBINDOPTIONS"
> ExecReload=/usr/bin/kill -HUP $MAINPID
> 
> [Install]
> WantedBy=multi-user.target
> #
> 
> winbindd does start at boot time, but doesn't work:
> 
> # reboot
> Connection to centos closed by remote host.
> Connection to centos closed.
> $ ping -o centos && ssh centos
> PING centos (10.160.171.246): 56 data bytes
> 64 bytes from 10.160.171.246: icmp_seq=44 ttl=64 time=0.350 ms
> 
> --- centos ping statistics ---
> 45 packets transmitted, 1 packets received, 97.8% packet loss
> round-trip min/avg/max/stddev = 0.350/0.350/0.350/0.000 ms
> Last login: Thu Sep 10 12:33:01 2015 from 10.160.171.161
> # uptime
>  13:29:15 up 0 min,  2 users,  load average: 1.58, 0.38, 0.13
> # findps winb
> root      1303  0.4  0.1 348400  5372 ?        Ss   13:29   0:00
> /usr/sbin/winbindd
> root      1375  0.0  0.1 348304  3856 ?        S    13:29   0:00
> /usr/sbin/winbindd
> # wbinfo -i longj22
> failed to call wbcGetpwnam: WBC_ERR_DOMAIN_NOT_FOUND
> Could not get info for user longj22
> # wbinfo -i longj22
> failed to call wbcGetpwnam: WBC_ERR_DOMAIN_NOT_FOUND
> Could not get info for user longj22
> # service winbind restart
> Restarting winbind (via systemctl):                        [  OK  ]
> # wbinfo -i longj22
> longj22:*:324960:70513:Jim Long:/home/longj22:/bin/bash
> # findps winb
> root      2805  0.0  0.0 340988  3056 ?        Ss   13:29   0:00
> /usr/sbin/winbindd
> root      2806  1.3  0.1 379268  7276 ?        S    13:29   0:00
> /usr/sbin/winbindd
> root      2807  1.0  0.1 377172  6524 ?        S    13:29   0:00
> /usr/sbin/winbindd
> # uptime
>  13:29:44 up 1 min,  2 users,  load average: 1.04, 0.35, 0.12
> 
> It's apparent that at boot time, two winbindd processes are running.
> After the service
> is restarted, there are three.  Is this significant?
> 
> More to the point, how can I adjust my service definition file to start
> the winbind service correctly at boot time?
> 
> Thank you!
> 
> 
> Jim

Hi Jim

There should only be one, but there may be multiple threads.  Use "ps 
fauxwww".  Partial output from one of my DCs.

root      1217  0.0  3.7 573208 37832 ?        Ss   Sep07   0:01 
/usr/sbin/samba -D
root      1918  0.0  3.3 573208 33664 ?        S    Sep07   0:00  \_ 
/usr/sbin/samba -D
root      1921  0.0  3.8 612900 38868 ?        Ss   Sep07   0:20  |   \_ 
/usr/sbin/smbd -D --option=server role check:inhibit=yes --foreground
root      1920  0.1  3.9 579892 39872 ?        S    Sep07   9:46  \_ 
/usr/sbin/samba -D
root      1924  0.0  3.5 577360 36068 ?        S    Sep07   0:05  \_ 
/usr/sbin/samba -D
root      1926  0.0  3.2 573208 33532 ?        S    Sep07   0:00  \_ 
/usr/sbin/samba -D
root      1927  0.0  3.8 575720 38684 ?        S    Sep07   0:18  \_ 
/usr/sbin/samba -D
root      1930  0.0  3.4 573208 34992 ?        S    Sep07   0:08  \_ 
/usr/sbin/samba -D
root      1934  0.0  3.7 579456 38064 ?        S    Sep07   0:07  \_ 
/usr/sbin/samba -D
root      1936  0.1  3.7 582016 38232 ?        S    Sep07   5:40  \_ 
/usr/sbin/samba -D
root      1937  0.0  3.3 573208 33652 ?        S    Sep07   0:00  \_ 
/usr/sbin/samba -D
root      1942  0.0  3.7 582788 38172 ?        Ss   Sep07   0:18  |   \_ 
/usr/sbin/winbindd -D --option=server role check:inhibit=yes 
--foreground
root      2007  0.0  3.6 598548 36672 ?        S    Sep07   0:34  |      
  \_ /usr/sbin/winbindd -D --option=server role check:inhibit=yes 
--foreground
root     12871  0.0  3.5 599088 36516 ?        S    Sep07   0:00  |      
  \_ /usr/sbin/winbindd -D --option=server role check:inhibit=yes 
--foreground
root     12872  0.0  3.4 582788 34696 ?        S    Sep07   0:00  |      
  \_ /usr/sbin/winbindd -D --option=server role check:inhibit=yes 
--foreground
root      1940  0.0  3.4 573208 34744 ?        S    Sep07   0:00  \_ 
/usr/sbin/samba -D
root      1941  0.0  4.5 577360 46040 ?        S    Sep07   1:52  \_ 
/usr/sbin/samba -D
root      1943  0.0  3.4 573208 34772 ?        S    Sep07   0:19  \_ 
/usr/sbin/samba -D


Is this on a DC or member server?  On a DC you do not need to start 
winbindd.  The samba process will do this for you.

Regards

Mike