[Samba] Cannot join Ubuntu12.04 Samba 4.1.17 to domain

[ivenhov]

I've made all changes to 3 files you mentioned, also removed everything
except localhost in hosts file.
SO I have minimal smb.conf and minimal krb5 file

Unfortunately error is still the same.

If I try to join with full OU path I get kerberos_kinit_password
testuser at MYNAT.MYCO.BCU failed: Cannot contact any KDC for requested realm
libnet_Join:
    libnet_JoinCtx: struct libnet_JoinCtx
        out: struct libnet_JoinCtx
            account_name             : NULL
            netbios_domain_name      : 'MYNAT'
            dns_domain_name          : 'mynat.myco.bcu'
            forest_name              : 'myco.bcu'
            dn                       : NULL
            domain_sid               : *
                domain_sid               :
S-1-5-21-73586283-854245398-682003330
            modified_config          : 0x00 (0)
            error_string             : 'failed to connect to AD: Cannot
contact any KDC for requested realm'
            domain_is_ad             : 0x01 (1)
            result                   : WERR_DEFAULT_JOIN_REQUIRED
Failed to join domain: failed to connect to AD: Cannot contact any KDC for
requested realm
return code = -1

If I try without cretecomputer

kerberos_kinit_password testuser at MYNAT.MYCO.BCU failed: Cannot contact any
KDC for requested realm
libnet_Join:
    libnet_JoinCtx: struct libnet_JoinCtx
        out: struct libnet_JoinCtx
            account_name             : NULL
            netbios_domain_name      : 'MYNAT'
            dns_domain_name          : 'mynat.myco.bcu'
            forest_name              : 'myco.bcu'
            dn                       : NULL
            domain_sid               : *
                domain_sid               :
S-1-5-21-73586283-854245398-682003330
            modified_config          : 0x00 (0)
            error_string             : 'failed to connect to AD: Cannot
contact any KDC for requested realm'
            domain_is_ad             : 0x01 (1)
            result                   : WERR_GENERAL_FAILURE
Failed to join domain: failed to connect to AD: Cannot contact any KDC for
requested realm
return code = -1


I can get Kerberos ticket with no problems using:
kinit myuser at MYNAT.MYCO.BCU
klist shows valid ticket

regarding services

me at SERV1603:~$ sudo netstat -tulpan | grep LISTEN
tcp        0      0 0.0.0.0:445             0.0.0.0:*               LISTEN     
5628/smbd
tcp        0      0 0.0.0.0:139             0.0.0.0:*               LISTEN     
5628/smbd
tcp6       0      0 :::445                  :::*                    LISTEN     
5628/smbd
tcp6       0      0 :::139                  :::*                    LISTEN     
5628/smbd


there is also no process with dns name, checked via 
 ps aux | grep -i dns

I have no file with path /etc/NetworkManager/NetworkManager.conf which I
assume no netman installed.

10.80.8.88 is AD and DNS on the network

D.







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