Probleme bei Namensauflösung über Samba 4.2.7 - PDC

# The ddns-updates-style parameter controls whether or not the server will
# attempt to do a DNS update when a lease is confirmed. We default to the
# behavior of the version 2 packages ('none', since DHCP v2 didn't 
# have support for DDNS.)
ddns-update-style none;

# option definitions common to all supported networks...
option domain-name "example.loc";  
# option domain-name-servers 192.168.1.1, 192.168.1.150;
option domain-name-servers 192.168.1.1;
option ntp-servers 192.168.1.1;
option netbios-node-type 8;
option netbios-name-servers 192.168.1.1;
option netbios-dd-server 192.168.1.1;
option ip-forwarding false;

option netbios code 180 = string;

option space MSFT;
option MSFT.disable-netbios-over-tcpip code 1 = unsigned integer 32;
option MSFT.release-dhcp-lease-on-shutdown code 2 = unsigned integer 32;

class "MSFT 5.0" {  
  match if option vendor-class-identifier = "MSFT 5.0";  
  option vendor-class-identifier "MSFT 5.0";  
  vendor-option-space MSFT;
  # NBT ON = 1 / OFF = 2
  option MSFT.disable-netbios-over-tcpip 2;
  option MSFT.release-dhcp-lease-on-shutdown 1;
}

class "MSFT 98" {  
  match if option vendor-class-identifier = "MSFT 98";  
  option vendor-class-identifier "MSFT 98";  
  vendor-option-space MSFT;
  option MSFT.disable-netbios-over-tcpip 2;
  option MSFT.release-dhcp-lease-on-shutdown 1;
}

# default-lease-time 600;
# max-lease-time 7200;

# If this DHCP server is the official DHCP server for the local
# network, the authoritative directive should be uncommented.
authoritative;

# pool.ntp.org maps to about 1000 low-stratum NTP servers.  Your server will
# pick a different set every time it starts up.  Please consider joining the
# pool: <http:{{comment_single_line_double_slash:0}}
server 0.debian.pool.ntp.org iburst
server 1.debian.pool.ntp.org iburst
server 2.debian.pool.ntp.org iburst
server 3.debian.pool.ntp.org iburst

# Samba 4 support

ntpsigndsocket /var/lib/samba/ntp_signd/
restrict default mssntp

option domain-name-servers 192.168.1.1; 

# Global parameters
[global]
        workgroup = EXAMPLE
        realm = example.loc
        netbios name = EXAMPLE
        server role = active directory domain controller
        idmap_ldb:use rfc2307 = yes
        # dns forwarder = 192.168.1.150
        dns forwarder = 8.8.8.8