Join domain as secondary domain controller

[bogdan_bartos]

I am trying to joing an existing samba 4 DC and it's giving me an error:

[root at backupdc bin]# host -t A FILESERVER.specified.ca
FILESERVER.specified.ca has address 192.168.100.253

[root at backupdc bin]# cat /etc/krb5.conf
[libdefaults]
    dns_lookup_realm = true
    dns_lookup_kdc = true
    default_realm = FILESERVER.SPECIFIED.CA

[root at backupdc bin]# kinit
Password for administrator at FILESERVER.SPECIFIED.CA:
Warning: Your password will expire in 41 days on Sat 18 Jul 2015 01:58:01 PM
MDT

[root at backupdc bin]# klist
Ticket cache: FILE:/tmp/krb5cc_0
Default principal: administrator at FILESERVER.SPECIFIED.CA

Valid starting     Expires            Service principal
06/06/15 15:42:02  07/06/15 01:42:02 
krbtgt/FILESERVER.SPECIFIED.CA at FILESERVER.SPECIFIED.CA
        renew until 07/06/15 15:41:59

[root at backupdc bin]# ./samba-tool domain join fileserver.specified.ca DC
-Uadministrator --realm=fileserver.specified.ca
Finding a writeable DC for domain 'fileserver.specified.ca'
ERROR(exception): uncaught exception - Failed to find a writeable DC for
domain 'fileserver.specified.ca'
  File
"/usr/local/samba/lib64/python2.7/site-packages/samba/netcmd/__init__.py",
line 175, in _run
    return self.run(*args, **kwargs)
  File
"/usr/local/samba/lib64/python2.7/site-packages/samba/netcmd/domain.py",
line 613, in run
    machinepass=machinepass, use_ntvfs=use_ntvfs, dns_backend=dns_backend)
  File "/usr/local/samba/lib64/python2.7/site-packages/samba/join.py", line
1161, in join_DC
    machinepass, use_ntvfs, dns_backend, promote_existing)
  File "/usr/local/samba/lib64/python2.7/site-packages/samba/join.py", line
79, in __init__
    ctx.server = ctx.find_dc(domain)
  File "/usr/local/samba/lib64/python2.7/site-packages/samba/join.py", line
267, in find_dc
    raise Exception("Failed to find a writeable DC for domain '%s'" %
domain)

What do you sugest? I did this before and it worked like a charm on another
DC.




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