> For the complete documentation index, see [llms.txt](https://hacking-notes.jord4n.pro/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://hacking-notes.jord4n.pro/es/active-directory/kerberos/kerberos-key-components.md).
# Componentes clave de Kerberos
#### KDC
El **KDC**o **Centro de distribución de claves**, está instalado en el controlador de dominio.
Es responsable de emitir tickets Kerberos.
Contiene dos componentes principales:
* **AS** : Servicio de autenticación ;
* **TGS** : Servicio de concesión de tickets.
#### AS — Servicio de autenticación
El **AS** es la parte del KDC responsable de la autenticación inicial del usuario.
Ocurre cuando el usuario se conecta al dominio.
#### TGS — Servicio de concesión de tickets
El **TGS** es la parte del KDC responsable de proporcionar tickets para acceder a servicios específicos.
Ejemplos de servicios:
* recurso compartido SMB;
* servicio HTTP;
* MSSQL;
* LDAP;
* CIFS;
* servicio de aplicación interna.
#### cuenta krbtgt
En Active Directory, se crea una cuenta especial de forma predeterminada:
```
krbtgt
```
Esta cuenta es utilizada por el KDC para firmar y cifrar ciertos tickets Kerberos.
Es extremadamente sensible porque está relacionada con cómo funciona la autenticación Kerberos en el dominio.
---
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