[Samba] Problems with DNS Update

[Marcio Demetrio Bacci]

Hi,

Today, I saw that my Samba 4 DC has a DNS Update problem.

My workstations aren't getting to login the Domain.

This message appear:

root at dc1:# /etc/init.d/samba4 status | more
● samba4.service - LSB: start Samba4 daemons
   Loaded: loaded (/etc/init.d/samba4)
   Active: active (running) since Seg 2017-06-12 16:06:03 -03; 1min 29s ago
  Process: 727 ExecStop=/etc/init.d/samba4 stop (code=exited,
status=0/SUCCESS)
  Process: 736 ExecStart=/etc/init.d/samba4 start (code=exited,
status=0/SUCCESS
)
   CGroup: /system.slice/samba4.service
           ├─741 /usr/local/samba/sbin/samba -D
           ├─766 /usr/local/samba/sbin/samba -D
           ├─767 /usr/local/samba/sbin/samba -D
           ├─768 /usr/local/samba/sbin/smbd -D --option=server role
check:inhibi
t=yes --foreground
           ├─769 /usr/local/samba/sbin/samba -D
           ├─770 /usr/local/samba/sbin/samba -D
           ├─771 /usr/local/samba/sbin/samba -D
           ├─772 /usr/local/samba/sbin/samba -D
           ├─773 /usr/local/samba/sbin/samba -D
           ├─774 /usr/local/samba/sbin/samba -D
           ├─775 /usr/local/samba/sbin/samba -D
           ├─776 /usr/local/samba/sbin/samba -D
           ├─777 /usr/local/samba/sbin/samba -D
           ├─778 /usr/local/samba/sbin/samba -D
           ├─779 /usr/local/samba/sbin/samba -D
           ├─780 /usr/local/samba/sbin/winbindd -D --option=server role
check:in
hibit=yes --foreground
           ├─783 /usr/local/samba/sbin/smbd -D --option=server role
check:inhibi
t=yes --foreground
           ├─784 /usr/local/samba/sbin/smbd -D --option=server role
check:inhibi
t=yes --foreground
           ├─786 /usr/local/samba/sbin/smbd -D --option=server role
check:inhibi
t=yes --foreground
           └─787 /usr/local/samba/sbin/winbindd -D --option=server role
check:in
hibit=yes --foreground

Jun 12 16:06:05 dc1 samba[778]: [2017/06/12 16:06:05.122576,  0]
../lib/util/u
til_runcmd.c:316(samba_runcmd_io_handler)
Jun 12 16:06:05 dc1 samba[778]: /usr/local/samba/sbin/samba_dnsupdate:
File
"/usr/local/samba/lib/python2.7/site-packages/samba/netcmd/__init__.py",
line 17
6, in _run
Jun 12 16:06:05 dc1 samba[778]: [2017/06/12 16:06:05.122827,  0]
../lib/util/u
til_runcmd.c:316(samba_runcmd_io_handler)
Jun 12 16:06:05 dc1 samba[778]: /usr/local/samba/sbin/samba_dnsupdate:
ret
urn self.run(*args, **kwargs)
Jun 12 16:06:05 dc1 samba[778]: [2017/06/12 16:06:05.123080,  0]
../lib/util/u
til_runcmd.c:316(samba_runcmd_io_handler)
Jun 12 16:06:05 dc1 samba[778]: /usr/local/samba/sbin/samba_dnsupdate:
File
"/usr/local/samba/lib/python2.7/site-packages/samba/netcmd/dns.py", line
1098, i
n run
Jun 12 16:06:05 dc1 samba[778]: [2017/06/12 16:06:05.123338,  0]
../lib/util/u
til_runcmd.c:316(samba_runcmd_io_handler)
Jun 12 16:06:05 dc1 samba[778]: /usr/local/samba/sbin/samba_dnsupdate:
rai
se e
Jun 12 16:06:05 dc1 samba[778]: [2017/06/12 16:06:05.134473,  0]
../source4/ds
db/dns/dns_update.c:290(dnsupdate_nameupdate_done)
Jun 12 16:06:05 dc1 samba[778]: ../source4/dsdb/dns/dns_update.c:290:
Failed D
NS update - with error code 28

Have anybody  an idea how to solve this problem ?

Regards,

Márcio Bacci