Hello all. Please help me with my problem. I have organization with branches connected through internet by VPN. First branch (B00) have two Dc's in 172.16.0.0/16 network and second branch (B01) have one DC in 172.17.0.0/16 network. All three Dc's built from sources (4.10.2) on freshly installed Debian Stretch. I am using BIND9_DLZ backend. So, 2 Dc's located in one building (B00) works flawless: DDNS updates, drs repl and so on. But when I join new DC at second building, nothing works on this new DC. I can't connect to it from RSAT, cannot make drs replication. When I try samba-tool drs showrepl -d 3, I've got this message: Server ldap/B01DC01.CORP.COMPANY.RU at CORP.COMPANY.RU is not registered with our KDC: Miscellaneous failure (see text): Server (ldap/B01DC01.CORP.COMPANY.RU at CORP.COMPANY.RU) unknown gensec_spnego_create_negTokenInit_step: gssapi_krb5: creating NEG_TOKEN_INIT for ldap/B01DC01.CORP.COMPANY.RU failed (next[ntlmssp]): NT_STATUS_INVALID_PARAMETER When I try to ldbsearch -H ldap://b00dc01 servicePrincipalName=ldap/B01DC01.corp.company.ru, I've got zero search results. My smb.conf is pretty simple on all nodes: [global] hosts allow = ALL server min protocol = NT1 lanman auth = Yes ntlm auth = Yes netbios name = B00DC01 realm = CORP.COMPANY.RU server role = active directory domain controller server services = -dns workgroup = CORP idmap_ldb:use rfc2307 = yes [sysvol] path = /usr/local/samba/var/locks/sysvol read only = No [netlogon] path = /usr/local/samba/var/locks/sysvol/corp.company.ru/scripts read only = No Please help me to fix this issue and finally join remote DC corretly.