Since some week I'm unable to restart the Zentyal 5.0.1 DNS module.
Everytime I try to restart the dns service I get this error:
2017/12/21 11:18:12 INFO> Service.pm:958 EBox::Module::Service::restartService - Restarting service for module: dns
2017/12/21 11:18:13 INFO> DNS.pm:91 EBox::DNS::appArmorProfiles - Setting DNS apparmor profile
2017/12/21 11:18:17 ERROR> Sudo.pm:240 EBox::Sudo::_rootError - root command nsupdate -g -t 10 /var/lib/zentyal/tmp/ux42LfUcLO failed.
2017/12/21 11:18:17 ERROR> Service.pm:962 EBox::Module::Service::restartService - Error restarting service: root command nsupdate -g -t 10 /var/lib/zentyal/tmp/ux42LfUcLO failed.
Error output: tkey query failed: GSSAPI error: Major = Unspecified GSS failure. Minor code may provide more information, Minor = No Kerberos credentials available.
Command output: .
Exit value: 1
2017/12/21 11:18:17 ERROR> Service.pm:964 EBox::Module::Service::restartService - root command nsupdate -g -t 10 /var/lib/zentyal/tmp/ux42LfUcLO failed.
2017/12/21 11:18:17 ERROR> RestartService.pm:61 EBox::SysInfo::CGI::RestartService::_process - Restart of DNS from dashboard failed: root command nsupdate -g -t 10 /var/lib/zentyal/tmp/ux42LfUcLO failed.
Error output: tkey query failed: GSSAPI error: Major = Unspecified GSS failure. Minor code may provide more information, Minor = No Kerberos credentials available.
Command output: .
Exit value: 1