Olá Fernando,
A nova versão agora faz parte da versão 3.0 enterprise... A sua máquina tem uma licença enterprise? Se sim, vc pode editar os parâmetros para fazer a integração com o controlador de domínio em "/etc/zentyal/squid.conf", editando as linhas:
# TAG: Authentication mode
# key: auth_mode
# This key controls the authentication mode for squid. When set to internal,
# squid autheticate against the Zentyal internal LDAP, when set to external_ad,
# squid authenticate users against an external Active Directory.
# values:
# - internal
# - external_ad
auth_mode = external_ad
# TAG: External AD authentication
# key: auth_ad_dc
# The domain controller to use for users authorization (group membership lookup).
auth_ad_dc = nome.dominio.local
# key: auth_ad_bind_dn
# The DN of a user with enough permissions to create a computer account in the
# domain. Zentyal will create its own computer account and will add the necessary
# SPNs to it automatically using this username.
auth_ad_bind_dn = CN=netsolsync,CN=Users,DC=dominio,DC=local
# key: auth_ad_bind_pwd
# The password for the specified admin account.
auth_ad_bind_pwd = senha
# key: auth_ad_skip_system_groups
# Skip groups that has the attribute 'isSystemCriticalObject' set (almost all built-in)
auth_ad_skip_system_groups = yes
# key: auth_ad_acl_ttl
# TTL in seconds for ACL cached results.
auth_ad_acl_ttl = 3600
A NetSol é representante oficial Zentyal no Brasil e pode lhe vender uma subscrição enterprise, caso ainda não tenha.
Abraços,
Jorge Quintão