Como dito antes, segue as informações pra colocar o Zentyal como Additional Domain Controller...
Os logs:
2013/04/05 12:04:13 INFO> Provision.pm:676 EBox::Samba::Provision::checkAddress - Resolving dc-server.home.lan to an IP address
2013/04/05 12:04:13 INFO> Provision.pm:696 EBox::Samba::Provision::checkAddress - The DC dc-server.home.lan has been resolved to 10.1.1.15
2013/04/05 12:04:13 INFO> Provision.pm:699 EBox::Samba::Provision::checkAddress - Checking reverse DNS resolution of '10.1.1.15'...
2013/04/05 12:04:13 INFO> Provision.pm:720 EBox::Samba::Provision::checkAddress - The IP address 10.1.1.15 has been resolved to dc-server.home.lan
2013/04/05 12:04:13 INFO> Provision.pm:622 EBox::Samba::Provision::checkServerReachable - Checking if AD server '10.1.1.15' is online...
2013/04/05 12:04:13 INFO> Provision.pm:732 EBox::Samba::Provision::checkFunctionalLevels - Checking forest and domain functional levels...
2013/04/05 12:04:13 INFO> Provision.pm:641 EBox::Samba::Provision::checkLocalRealmAndDomain - Checking local domain and realm...
2013/04/05 12:04:13 INFO> Provision.pm:800 EBox::Samba::Provision::__ANON__ - Checking clock skew with AD server...
2013/04/05 12:04:13 INFO> Provision.pm:821 EBox::Samba::Provision::checkClockSkew - Clock skew below two minutes, should be enought.
2013/04/05 12:04:13 INFO> Provision.pm:541 EBox::Samba::Provision::checkDnsZonesInMainPartition - Checking for old DNS zones stored in main domain partition...
2013/04/05 12:04:14 INFO> Provision.pm:588 EBox::Samba::Provision::checkForestDomains - Checking number of domains inside forest...
2013/04/05 12:04:14 INFO> Provision.pm:760 EBox::Samba::Provision::checkTrustDomainObjects - Checking for domain trust relationships...
2013/04/05 12:04:14 INFO> Provision.pm:862 EBox::Samba::Provision::checkADServerSite - Checking the site where the specified server is located
2013/04/05 12:04:14 INFO> Provision.pm:870 EBox::Samba::Provision::checkADServerSite - The specified server has been located at site named Default-First-Site-Name
2013/04/05 12:04:14 INFO> Provision.pm:887 EBox::Samba::Provision::checkADNebiosName - Checking domain netbios name...
2013/04/05 12:04:14 INFO> Provision.pm:986 EBox::Samba::Provision::__ANON__ - Joining to domain 'home.lan' as DC
2013/04/05 12:04:14 INFO> Provision.pm:1003 EBox::Samba::Provision::__ANON__ - Trying to get a kerberos ticket for principal '
administrator@HOME.LAN'
2013/04/05 12:04:15 INFO> Provision.pm:1012 EBox::Samba::Provision::__ANON__ - Executing domain join
2013/04/05 12:04:36 INFO> Provision.pm:1046 EBox::Samba::Provision::__ANON__ - Running DNS update on remote DC
2013/04/05 12:04:45 INFO> SysvolSync.pm:204 EBox::Samba::SysvolSync::run - Samba sysvol synchronizer script started
2013/04/05 12:04:47 INFO> Provision.pm:1051 EBox::Samba::Provision::__ANON__ - Running KCC on remote DC
2013/04/05 12:04:50 INFO> Provision.pm:1058 EBox::Samba::Provision::__ANON__ - Purging the Zentyal LDAP to import Samba users
2013/04/05 12:04:52 INFO> LDB.pm:511 EBox::LDB::ldapServicePrincipalsToLdb - Loading Zentyal service principals into samba database
2013/04/05 12:04:52 INFO> LDB.pm:547 EBox::LDB::__ANON__ - Adding SPN 'HTTP/servidor.home.lan' to user CN=proxy-servidor,CN=Users,DC=home,DC=lan
2013/04/05 12:04:52 INFO> Provision.pm:336 EBox::Samba::Provision::mapAccounts - Mapping domain administrator account
2013/04/05 12:04:52 INFO> User.pm:471 EBox::Samba::User::addToZentyal - Adding samba user 'Administrator' to Zentyal
2013/04/05 12:04:54 INFO> Provision.pm:340 EBox::Samba::Provision::mapAccounts - Mapping domain administrators group account
2013/04/05 12:04:54 INFO> Group.pm:245 EBox::Samba::Group::addToZentyal - Adding samba group 'Domain Admins' to Zentyal
2013/04/05 12:04:54 INFO> Provision.pm:360 EBox::Samba::Provision::mapAccounts - Mapping domain guest account
2013/04/05 12:04:54 INFO> Provision.pm:362 EBox::Samba::Provision::mapAccounts - Mapping domain guests group account
2013/04/05 12:04:55 INFO> Base.pm:229 EBox::Module::Base::save - Restarting service for module: logs
2013/04/05 12:04:55 INFO> GlobalImpl.pm:689 EBox::GlobalImpl::saveAllModules - Changes saved successfully
2013/04/05 12:05:14 INFO> User.pm:471 EBox::Samba::User::addToZentyal - Adding samba user 'gilberto' to Zentyal
2013/04/05 12:05:14 INFO> User.pm:471 EBox::Samba::User::addToZentyal - Adding samba user 'joao' to Zentyal
2013/04/05 12:05:15 INFO> User.pm:471 EBox::Samba::User::addToZentyal - Adding samba user 'maria' to Zentyal
2013/04/05 12:05:15 INFO> User.pm:471 EBox::Samba::User::addToZentyal - Adding samba user 'nelson' to Zentyal
2013/04/05 12:05:15 INFO> User.pm:471 EBox::Samba::User::addToZentyal - Adding samba user 'neuza' to Zentyal
2013/04/05 12:05:15 INFO> Group.pm:245 EBox::Samba::Group::addToZentyal - Adding samba group 'DIRETORES' to Zentyal
2013/04/05 12:05:15 INFO> Group.pm:341 EBox::Samba::Group::_membersToZentyal - Adding member 'joao' to Zentyal group 'DIRETORES'
2013/04/05 12:05:15 INFO> Group.pm:341 EBox::Samba::Group::_membersToZentyal - Adding member 'nelson' to Zentyal group 'DIRETORES'
2013/04/05 12:05:15 INFO> Group.pm:245 EBox::Samba::Group::addToZentyal - Adding samba group 'DnsAdmins' to Zentyal
2013/04/05 12:05:15 INFO> Group.pm:245 EBox::Samba::Group::addToZentyal - Adding samba group 'DnsUpdateProxy' to Zentyal
2013/04/05 12:05:15 INFO> Group.pm:268 EBox::Samba::Group::updateZentyal - Updating zentyal group 'Domain Admins'
2013/04/05 12:05:15 INFO> Group.pm:245 EBox::Samba::Group::addToZentyal - Adding samba group 'FINANCEIRO' to Zentyal
2013/04/05 12:05:15 INFO> Group.pm:341 EBox::Samba::Group::_membersToZentyal - Adding member 'maria' to Zentyal group 'FINANCEIRO'
2013/04/05 12:05:15 INFO> Group.pm:245 EBox::Samba::Group::addToZentyal - Adding samba group 'NIVEL01' to Zentyal
2013/04/05 12:05:15 INFO> Group.pm:245 EBox::Samba::Group::addToZentyal - Adding samba group 'NIVEL02' to Zentyal
2013/04/05 12:05:15 INFO> Group.pm:245 EBox::Samba::Group::addToZentyal - Adding samba group 'NIVEL03' to Zentyal
2013/04/05 12:05:15 INFO> Group.pm:245 EBox::Samba::Group::addToZentyal - Adding samba group 'SECRETARIA' to Zentyal
2013/04/05 12:05:15 INFO> Group.pm:341 EBox::Samba::Group::_membersToZentyal - Adding member 'neuza' to Zentyal group 'SECRETARIA'
2013/04/05 12:05:15 INFO> Group.pm:245 EBox::Samba::Group::addToZentyal - Adding samba group 'TI' to Zentyal
2013/04/05 12:05:15 INFO> Group.pm:341 EBox::Samba::Group::_membersToZentyal - Adding member 'gilberto' to Zentyal group 'TI'
E as telas de configuração: