[Samba] problem to run samba_dnsupdate

[Gabriel O. Franca]

Dear,

I updated my samba to 4.8 and now when I execute the command 
samba_dnsupdate --verbose --all-names I get the following error message.


*tkey query failed: GSSAPI error: Major = Unspecified GSS failure.  
Minor code may provide more information, Minor = Server not found in 
Kerberos database.**
**Failed nsupdate: 1**
**update(nsupdate): SRV 
_ldap._tcp.Default-First-Site-Name._sites.ForestDnsZones.cmc.corp 
samba.cmc.corp 389**
**Calling nsupdate for SRV 
_ldap._tcp.Default-First-Site-Name._sites.ForestDnsZones.cmc.corp 
samba.cmc.corp 389 (add)**
**Successfully obtained Kerberos ticket to DNS/samba.cmc.corp as SAMBA$**
**Outgoing update query:**
**;; ->>HEADER<<- opcode: UPDATE, status: NOERROR, id:      0**
**;; flags:; ZONE: 0, PREREQ: 0, UPDATE: 0, ADDITIONAL: 0**
**;; UPDATE SECTION:**
**_ldap._tcp.Default-First-Site-Name._sites.ForestDnsZones.cmc.corp. 900 
IN SRV 0 100 389 samba.cmc.corp.**
**
**tkey query failed: GSSAPI error: Major = Unspecified GSS failure.  
Minor code may provide more information, Minor = Server not found in 
Kerberos database.**
**Failed nsupdate: 1**
**Failed update of 27 entries*

Has anyone ever had this problem and can help me?

regards,

Gabriel Franca