Archivo de la etiqueta: Seguridad

Alfresco Tip: How to enable SSL in Alfresco SharePoint Protocol

There are two ways to approach getting the Alfresco SharePoint Protocol to run over SSL and avoid having to modify the Windows registry for allow non-ssl connections from MS Office (in both Windows and Mac).

One way is to use the out of the box SSL certificate that Alfresco uses for communications between itself and Solr (this blog post is about this option). The other is to generate a new certificate and configure Alfresco to use it, which is the option if you want to use a custom certificate. Next steps tested on Alfresco 4.2, it should work in 4.2 as well for both Enterprise and Community. Please, let me know through a comment if you have an objection on this.

  • 1. Rename file tomcat/shared/classes/alfresco/extension/vti-custom-context.xml.ssl to tomcat/shared/classes/alfresco/extension/vti-custom-context.xml, if it does not exist just create it like below:

<?xml version='1.0' encoding='UTF-8'?>

<bean id="vtiServerConnector" class="">
 <property name="port">
<property name="headerBufferSize">

<!-- Use this Connector instead for SSL communications -->
 <!-- You will need to set the location of the KeyStore holding your -->
 <!-- server certificate, along with the KeyStore password -->
 <!-- You should also update the vti.server.protocol property to https -->
 <bean id="vtiServerConnector" class="">
 <property name="port">
 <property name="headerBufferSize">
 <property name="maxIdleTime">
 <property name="keystore">
 <property name="keyPassword">
 <property name="password">
 <property name="keystoreType">

  • 2. Now add the required attributes to


Remember to change localhost to your server full name (i.e.

  • 3. Restart the Alfresco application server and try the “Edit online” action on a MS Office document through Alfresco Share. A warning message will appear to accept the Alfresco self-signed certificate but is a common behavior.

Essential commands for Alfresco BART

Alfresco BART usage:

./ [set] [date dest]

But what really modes are? With modes I mean different ways to use Alfresco BART depending of what do you want to do, for instance:

  • backup: runs an incremental backup or a full if first time
  • restore: runs the restore, wizard if no arguments, see below more commands with arguments [set] [date] [dest], while [set] can also be “all” for all sets.
  • verify: verifies the backup, it compares what you have backed up and what you have in your live system.
  • collection: shows all the backup sets already in the backup archive that might be restored.
  • list: lists the files currently backed up in the archive. It shows files contained in the last backup.


  • no value: use all backup sets
  • index: use index backup set (group) for selected mode.
  • db: use data base backup set (group) for selected mode.
  • cs: use content store backup set (group) for selected mode.
  • files: use rest of files backup set (group) for selected mode.

Now lets see how to use Alfresco BART.

To make a backup:

./ backup

NOTE1: if first time, it makes a full backup
NOTE2: you should add this command to your root crontab with something like “0 5 * * * /path/to/ backup” (without quotes) if you want to run your backup daily at 5AM (after Alfresco’s nightly backups and maintenance jobs).
NOTE3: running command above with without any data sets (index, db, cs or files) it will perform a backup of all data sets configured in You can run “./ backup files” to only perform a backup of your configuration files, installation and customization files or “./ backup cs” to create a backup (full if first time or incremental if not) of your contentstore and additional stores configured.

Commands and options to restore backup:

To restore an existing backup guided by the wizard:

./ restore

################## Welcome to Alfresco BART Recovery wizard ###################

This backup and recovery tool does not overrides nor modify your existing
data, then you must have a destination folder ready to do the entire
or partial restore process.


Choose a restore option:
1) Full restore
2) Set restore
3) Restore a single file of your Alfresco repository
4) Restore from a given date
5) Restore other configuration file or directory

Enter an option [1|2|3|4|5] or CTRL+c to exit:

To restore the last (now) existing backup of all sets (all) and leave it in /tmp:

./ restore all now /tmp

To restore a DB backup from 14 days ago to /tmp:

./ restore db 14D /tmp

To restore the indexes backup from december 2nd 2013:

./ restore index 12-02-2013 /tmp

Valid date format is: now: for last backup, s: for second, m: minutes, h: hours, D: days, W: weeks, M: months or Y: years, all date values must be specified without spaces, i.e: 4D, 2W, 1Y, 33m. Dates may also be like: YYYY/MM/DD, YYYY-MM-DD, MM/DD/YYYY or MM-DD-YYYY.

To restore a single file deleted on the repository but existing in previous backup please use the backup wizard by typing: “./ restore” and then follow instructions in the menu option “3”.

To restore the configuration file from a given date please use the backup wizard by typing: “./ restore” and then follow instructions in the menu option “4”.

Finally if you want to restore any other configuration, installation or custom file from your existing backup on a given date follow instructions by choosing option 5 in the recovery wizard.

NOTE4: Alfresco BART restore options or recovery wizard never will overrides your existing Alfresco files, you should specify a temporary recovery folder with enough space, then you have to move that content manually or following the instructions on the screen.

In case of source mismatch error with Duplicity try running this command:

./ backup all force

My talk about Alfresco Backup and Recovery Tool in the Alfresco Summit

All recorded videos has been published recently in the Alfresco Summit portal and here you go my talk “Alfresco Backup and Recovery Tool: A Real World Backup Solution” I gave in both Boston and Barcelona. I was the first public presentation about Alfresco BART.

Thanks to all who attended this session and made it one of the most-well attended and highest-rated in both cities. I’m looking forward to keep talking covering security topics as usual (I already have some “hack-ideas”…).

If you only want to see the demo, it starts at minute 33:

The presentation is published in Slideshare as well:

Remember you can download here the White Paper I mention during the talk.

If you only want to see the practical demo (best resolution in the talk video above), you can enjoy it here:

Any questions and comments are always welcome!

Alfresco BART moved to Github

Quick post just to announce that Alfresco BART (Backup and Recovery Tool) has been moved from my local server to Github. I’m glad to see how many people is starting to test the tool and I need a place to better code and issues management.

Please, refer to for downloads, questions, issues, suggestions or feedback.


Running the Alfresco Solr backup from the command line

SOLR can be backed up by different ways. It uses a scheduled job by default but also can be triggered by the JMX interface in Alfresco Enterprise. Additionally can be done by direct using next URLs. Example for doing a backup of the alfresco solr core and only keep 1 backup:


For the archive core and only keep 1 backup:


In order to do the backup from the command line, you may use the “curl” command and run it like this (see comment about pem certificate below):

curl -k --cert /opt/alfresco/alf_data/keystore/browser.pem:alfresco "https://localhost:8443/solr/alfresco/replication?command=backup&location=/opt/alfresco/alf_data/solrBackup/alfresco&numberToKeep=1"


curl -k --cert /opt/alfresco/alf_data/keystore/browser.pem:alfresco "https://localhost:8443/solr/archive/replication?command=backup&location=/opt/alfresco/alf_data/solrBackup/archive&numberToKeep=1"

Please, note that “curl” does not support p12 certificates therefore you need to convert the default browser.p12 to browser.pem by running (password is alfresco):

openssl pkcs12 -in /opt/alfresco/alf_data/keystore/browser.p12 -out /opt/alfresco/alf_data/keystore/browser.pem –nodes

This option will be included in next version (0.3) of the Alfresco BART (Backup and Recovery Tool).

Alfresco Backup and Recovery Tool, release v0.1

Project was moved to Github!

Please go to for downloads, questions, issues, suggestions or feedback. Thanks!

Here you go, first release of the Alfresco Backup and Recovery Tool (Alfresco BART). An Apache 2.0 licensed tool for backup and restore of Alfresco ECM.

Alfresco BART is a tool written in shell script on top of Duplicity for Alfresco backups and restore from a local file system, FTP, SCP or Amazon S3 of all its components: indexes, data base, content store and all deployment and configuration files. It should runs in most Linux distributions, for Windows you may use Cygwin (non tested yet).

Brief description of its features: full and incremental backups, backup policies, backup volume control, encryption with GPG, compression. Also it has a restore wizard with shortcuts for quick restore of some key components ( and more).

This is an initial version, it has bugs and needs many improvements, please take care :)

Features in this version (v0.1):

  • 5 different modes of work: backup, restore, verify, collection and list
    • backup: runs an incremental backup or a full if first time or configured
    • restore: runs the restore wizard
    • verify: verifies the backup
    • collection: shows all the backup sets in the archive
    • list: lists the files currently backed up in the archive
  • Full and incremental backups.
  • Backup policies:
    • Periodicity: number of days of every full backup, if not backup found it does a full
    • Retention: keep full or incremental copies, clean old backups.
    • Control of number of moths to remove all backups older than or backup retention period.
  • Separated components (backup sets or groups), ability to enable or disable any set (cluster and dedicated search server aware), all backup sets supported are:
    • Indexes (SOLR or Lucene)
    • Data base (MySQL, PostgreSQL and Oracle)
    • Content Store plus deleted, cached and content store selector (optional).
    • Files: all configuration files, deployments, installation files, etc.
  • Restore wizard with support to:
    • restore a full backup (all sets)
    • given backup set
    • restore from a given date or days, month, year ago
    • restore from a point in time
  • Backup volume control:
    • All backups collections are split in a volume size 25MB by default, this can help to store your backup in tapes or in order to upload to a FTP, SCP or S3 server.
  • Backup to different destinations:
    • Local filesystem
    • Remote FTP or FTPS server
    • SCP server (should have shared keys already configured, no authentication with user and password supported)
    • Amazon S3
  • Encryption with GnuPG, all backup volumes are encrypted, this feature is configurable (enable or disable).
  • Compression, all backup volumes are compressed by default
  • Log reporting, Alfresco BART creates a log file each day of operation with in a report of any activity.


  • Duplicity 0.6 (with boto and fabric)
  • Python 
  • GnuPG
  • NcFTP
  • librsync
  • mysqldump for MySQL backup
  • pg_dump for PostgreSQL backup
  • exp for Oracle backup


  • TEST, TEST and TEST with JBOSS, MySQL, Oracle, S3, FTPs, SCP, etc.
  • Add more input and task controllers (and configuration, first run).
  • Restore single repository file.
  • Snapshots (LVM if exist, AWS if exist).
  • Support for MS SQL Server.
  • Configuration wizard (shell).
  • Share admin panel configuration page as main point to configure more options related to backup (eager, cleaner, index backup, trascan cleaner, etc.).
  • Custom logging control and reporting improvement.


Most recent information about tool and latest code is available in:

Please report bugs and improvements to: reverse moc.xylb@inot

Playing with Duplicity backup and restore tool and Amazon S3

Duplicity is a python command line tool for encrypted bandwidth-efficient backup.

In their creator words: “Duplicity  incrementally  backs  up  files  and directory by encrypting tar-format volumes with GnuPG and uploading them to a remote (or local) file server.  Currently local, ftp, sftp/scp, rsync, WebDAV, WebDAVs, Google Docs, HSi and Amazon S3 backends  are  available.   Because  duplicity  uses librsync,  the  incremental  archives  are  space  efficient  and only record the parts of files that have changed since the last backup.  Currently duplicity supports deleted files, full Unix permissions, directories, symbolic links, fifos, etc., but not hard links.

My brief description: a free and open source tool for doing full and incremental backup and restore from linux to local or almost any remote target, compressed and encrypted. A charm for any sys admin.

In order to explain how Duplicity works for backup and restore. I’m going to show how to do a backup of a folder called “sample_data” to an Amazon S3 bucket called “alfresco-backup” and a folder called “test” inside my bucket (use your own bucket name) the bucket and folder has been created by me before running any command but could be created by duplicity first time we run the command. If you want to let Duplicity create your own Amazon S3 bucket and you are located in Europe, please read the Duplicity man page.

Note: please not get confused with my bucket name “alfresco-backup”, use your own bucket name. I will use this bucket name also in future articles ;)

How to install Duplicity in Ubuntu:

# sudo apt-get install duplicity

Create a gpg key and remember the passphrase because will be required by Duplicity, defaults values works good. Your backup will be encrypted with the passphrase, all files created by command below will be on your Linux home/.gnupg but you won’t need that at all:

# gpg --gen-key

Create required system variables (you can also use them with an script):

# export PASSPHRASE=yoursupersecretpassphrase


To perform a backup with the Duplicity command (the easy and simple command):

# duplicity sample-data/ s3+http://alfresco-backup/test

If you get errors, some dependencies for Python and S3 support are required, try installing librsync1 and next python libraries python-gobject-2, boto and dbus.

The command output should be something like this:

Local and Remote metadata are synchronized, no sync needed.
Last full backup date: none
No signatures found, switching to full backup.
--------------[ Backup Statistics ]--------------
StartTime 1368207483.83 (Fri May 10 19:38:03 2013)
EndTime 1368207483.86 (Fri May 10 19:38:03 2013)
ElapsedTime 0.02 (0.02 seconds)
SourceFiles 5
SourceFileSize 1915485 (1.83 MB)
NewFiles 5
NewFileSize 1915485 (1.83 MB)
DeletedFiles 0
ChangedFiles 0
ChangedFileSize 0 (0 bytes)
ChangedDeltaSize 0 (0 bytes)
DeltaEntries 5
RawDeltaSize 1907293 (1.82 MB)
TotalDestinationSizeChange 5543 (5.41 KB)
Errors 0

This will create 3 files in your S3 bucket:

  • duplicity-full-signatures.20130510T160711Z.sigtar.gpg
  • duplicity-full.20130510T160711Z.manifest.gpg
  • duplicity-full.20130510T160711Z.vol1.difftar.gpg

All files are stored with the GNU tar format and encrypted, “duplicity-full” means that was first backup, in next backups you will see “duplicity-inc” in different volumes.

  • sigtar.gpg file contains files signatures then Duplicity will know what file has changed and do the incremental backup
  • manifest.gpg contains all files backed up and a SHA1 hash of each one
  • volume files (vol1 to volN depending of your backup size) will contains data files, a volume file use to be up to 25MB each one, this is for improve performance doing backup and restoration.

For more information about file format look at here:

# duplicity --full-if-older-than 30D sample-data s3+http://alfresco-backup/test

Verify if there are changes between last backup and your local files:

# duplicity verify s3+http://alfresco-backup/test sample-data
Local and Remote metadata are synchronized, no sync needed.
Last full backup date: Fri May 10 19:38:03 2013
Difference found: File . has mtime Fri May 10 19:39:05 2013, expected Fri May 10 19:34:53 2013
Difference found: File file1.txt has mtime Fri May 10 19:39:05 2013, expected Fri May 10 18:25:36 2013
Verify complete: 5 files compared, 2 differences found.

In last example we can see that a fine called file1.txt has changed and also the root directory “.” date,

List files backed up in S3:

# duplicity list-current-files s3+http://alfresco-backup/test
Local and Remote metadata are synchronized, no sync needed.
Last full backup date: Fri May 10 18:32:59 2013
Fri May 10 19:34:53 2013 .
Fri May 10 18:25:36 2013 file1.txt
Fri May 10 18:54:31 2013 file2.txt
Fri May 10 19:35:03 2013 mydir
Fri May 10 19:35:03 2013 mydir/file3.txt

You can see 3 files and 2 directories, in the statistics report duplicity counts any directory as file.


Duplicity can also manage the restore process but it will never override any existing file, the you can restore to a different location or remove your corrupted or old data if you want to restore in the original place. If duplicity successfully completes the restore it is not going to show any output.

How to restore last full backup:

# duplicity s3+http://alfresco-backup/test restore-dir/

How to restore a single file:

# duplicity --file-to-restore mydir/file3.txt s3+http://alfresco-backup/test restore-dir/file3.txt

How to restore entire backup in a given date:

# duplicity -t 2D s3+http://alfresco-backup/test restore-dir/

this will restore full backup of  2 days ago (see -t options, seconds, minutes, hours, months, etc may be used)

How to restore a single file in a given date:

If you are looking for a file with a content but you don’t know what version of the file you have to recover, you can try restoring different file versions in the backup:

# duplicity -t 2D --file-to-restore file1.txt s3+http://alfresco-backup/test file1.txt.2D
# duplicity -t 30D --file-to-restore file1.txt s3+http://alfresco-backup/test file1.txt.30D

Note, you have to specify a different file name for local restoration, remember that duplicity never overrides existing content.

Delete older backups:

# duplicity remove-older-than 1Y s3+http://alfresco-backup/test --force

also you can use for example 6M (six months), 30D (30 days) or 60m (60 minutes).

To see more information when you are running a duplicity command can use the vervosity flag -v [1-9] but also can see all logs here /root/.cache/duplicity/[directory with unique ID]/duplicity-full.YYYMMDDT182930Z.manifest.part

When you are finished playing with Duplicity and Amazon S3 remember to clean your passphrase and Amazon keys from the variables:


In next posts I will show  how to use Duplicity to have a perfect backup and restore policy of Alfresco.

OpenDJ (LDAP Server) and how to configure with Alfresco for your best demos

OpenDJ is a fork of the former Sun OpenDS. Is a free and Open Source LDAPv3 server. It is not under our Alfresco Supported Platforms umbrella but it works fine for demo porpuses and is very easy to install, configure and maintain. Since OpenDJ is a Java application you can run it in Linux, Mac or “even” Windows ;)

Lets see how how to start with OpenDJ from scratch.

  • Installation and configuration of OpenDJ:

Download the application downloader and launcher here: (you may also download the entire package from here  but I think with QuickSetup is the easier way)

Download this initial LDIF file with demo users and groups for the first population of our new brand LDAP server.

You must have installed Java in your system in order to execute file QuickSetup.jnlp. Then double click to open it. And follow as in the video:

Now lets configure our Alfresco Server (I did all this steps with Alfresco Enterprise 4.1.3 but should be valid for any 4.X version).

  •  Alfresco configuration:
# vi tomcat/shared/classes/

Add next line with our new authentication system before the default chain.


Create the needed directory for our new settings:

# mkdir -p tomcat/shared/classes/alfresco/extension/subsystems/Authentication/ldap/ldap1

Create your own config file, set as your needs:

vi tomcat/shared/classes/alfresco/extension/subsystems/Authentication/ldap/ldap1/

ldap.authentication.defaultAdministratorUserNames=\=Directory Manager

To have a full control about what is happening during the LDAP authentication add next lines to your custome log configuration file like next one. If you don’t have a custom log file already you can create it:

cp tomcat/webapps/alfresco/WEB-INF/classes/ tomcat/shared/classes/alfresco/extension/

Add next options to the file:

vi tomcat/shared/classes/alfresco/extension/



Now reboot and try. Also you can do that easily and without reboot using JMX with console

Remember to keep watching your logs:

tail -f tomcat/logs/catalina.out

When Alfresco is starting after our changes, you must see something like this:

2013-03-07 09:46:26,175  INFO  [management.subsystems.ChildApplicationContextFactory] [main] Starting 'Authentication' subsystem, ID: [Authentication, managed, ldap1]
2013-03-07 09:46:26,212  WARN  [authentication.ldap.LDAPInitialDirContextFactoryImpl] [main] LDAP server supports anonymous bind ldap://localhost:1389
2013-03-07 09:46:26,234  INFO  [authentication.ldap.LDAPInitialDirContextFactoryImpl] [main] LDAP server does not support simple string user ids and invalid credentials at ldap://localhost:1389
2013-03-07 09:46:26,235  INFO  [authentication.ldap.LDAPInitialDirContextFactoryImpl] [main] LDAP server does not fall back to anonymous bind for a simple dn and password at ldap://localhost:1389
2013-03-07 09:46:26,237  INFO  [authentication.ldap.LDAPInitialDirContextFactoryImpl] [main] LDAP server does not fall back to anonymous bind for known principal and invalid credentials at ldap://localhost:1389
2013-03-07 09:46:26,247  INFO  [management.subsystems.ChildApplicationContextFactory] [main] Startup of 'Authentication' subsystem, ID: [Authentication, managed, ldap1] complete

And after your first login:

2013-03-07 09:47:34,404  DEBUG [authentication.ldap.LDAPAuthenticationComponentImpl] [http-8080-5] Authenticating user "toni"
2013-03-07 09:47:34,421  DEBUG [authentication.ldap.LDAPAuthenticationComponentImpl] [http-8080-5] Setting the current user to "toni"
2013-03-07 09:47:34,422  DEBUG [authentication.ldap.LDAPAuthenticationComponentImpl] [http-8080-5] User "toni" authenticated successfully

Remember to change your LDAP log debug level before going live, something like INFO could be enough.

Revisión del libro “Hacker Épico” de Informática64

Hacker ÉpicoHoy quiero comentar este libro, Hacker Épico. Magistralmente escrito por Alejandro Ramos (Dab) y Rodrigo Yepes, publicado y editado por Informatica64. Si empiezas no puedes dejarlo hasta que no lees la última página, te mantiene enganchado, en tensión, disfrutándolo y aprendiendo con cada una de sus poco más de 250 páginas.

Contada en primera persona por Ángel Ríos, el hacker protagonista, esta novela trata sobre la aventura en la que se ve envuelto este informático que trabaja para una prometedora consultora de seguridad como auditor y junto a la ayuda de su amigo Marcos, se enfrenta a un sin fin de retos que pondrán a prueba sus habilidades de hacking y análisis forense a lo largo de toda la trama. Ambientada en la Madrid actual, este thriller hacker se basa en hechos que lamentablemente leemos con demasiada asiduidad en prensa.

Como sabéis los que seguís el blog, comento muchos libros técnicos en, generalmente relacionados de alguna forma con Alfresco. A diferencia de esos otros libros que he comentado, en esta ocasión no voy a hacer un repaso de cada capítulo ya que no quiero dar ninguna pista sobre lo que acontece en la historia, solo quiero limitarme publicar mi opinión y notas que he ido tomando mientras lo leía.

Hacker Épico no es una novela al uso, va mucho más allá, es un completo y actualizado manual de referencia, herramientas, casos de uso prácticos y totalmente actuales en los que, si estáis involucrados de alguna forma en el mundo de la seguridad informática, os sentiréis muy identificados y también, como ha sido mi caso, aprenderéis muchísimo mientras devoráis, sin necesidad de marca-páginas, esta maravilla.

Es un libro que no solo se lee una vez, puede ser perfectamente un libro de cabecera al que recurrir más de una vez. Como decía antes, prepárate una libreta (o Evernote en mi caso) mientras lo estés leyendo, podrás tomar jugosas notas, ver como se descubren vulnerabilidades 0day, saltar la seguridad de cámaras, puertas traseras, dominios, Windows, Linux, PDFs, redes WiFi y mucho más.

Por supuesto, también tiene su punto friki, como no podía ser de otra forma, no hay capítulo en el que no se hagan guiños al cine de superhéroes, series de culto y a otras novelas, e incluso a otros personajes de la escena hacker española. También se encuentran detalles y chascarrillos para gamers. Incluso, si conoces Madrid, te puedes ir imaginando algunas escenas descritas.

Fuga de datos, aplicaciones como Whatsapp, recursos web y redes sociales reales, iPhones, iPads… Conceptos, argumentos y soluciones bien documentados y totalmente cercanos al mundo real. Podrás ver como se hacen análisis forenses e incluso algunas partes de la trama y comentarios suenan muy familiares.

Un recorrido através de un sin fin de herramientas explicando cada uno de los flags utilizados.

¿Estamos ante el principio de una saga? ¿Son Alejandro y Rodrigo los Neal Stephenson y Clifford Stoll españoles? No lo sé, pero desde luego que no tienen nada que envidiarles, por lo menos por las sensaciones que provocan en el lector, igual que otras novelas del estilo como Criptonomicon o El Huevo del Cuco.

Aunque los autores se preocupan por explicar de la forma más sencilla posible algunas de las peripecias puramente técnicas del protagonista, si no estas familiarizado con algunos conceptos informáticos en algunas ocasiones puede resultar un poco difícil seguir la trama al 100%, de cualquier forma, si no eres informático o si lo eres y no entiendes algo siempre puedes buscar en internet lo que no entiendas. Así que, además de disfrutar, aprenderás más de lo que imaginas.

Hace unos años tuve el privilegio de trabajar durante unos días en el mismo departamento que Alejandro Ramos y compartir amigos comunes. Así que estoy doblemente orgulloso de que en nuestro país se escriban estas obras de arte y encima sea gente que se ha ganado lo que tiene a base de esfuerzo y pasión por esta locura infinita que es la seguridad informática. Gracias.

Seguro que no va a ser el único que diga que quiere más. ¡Quiero más aventuras de Ángel y Marcos!

Puedes comprarlo por 20€ en la web de Informática64, no te vas a arrepentir, te lo prometo.

¿Para cuándo la película?

Demo: Alfresco para prevenir fugas de información mediante metadatos

Al hilo de mi artículo anterior sobre crónica y materiales de la Alfresco DevCon 2012. He pensado que igual es buena idea volver a grabar la demo que hice pero esta vez en español, así poder llegar a más gente. Pues bien, aquí está la demo donde muestro la problemática existente cuando no se tiene control de los metadatos en los contenidos he se hacen públicos y como resolver el problema con Alfresco y el modulo de limpieza de metadatos.

También está disponible en inglés junto al resto de conferencias en el canal de Alfresco en Youtube, lista de videos de San José.

Aprovecho para recordar que creé un proyecto en Google Code para recoger todas las soluciones existentes en torno a Alfresco y Seguridad, puedes verlo aquí y si quieres colaborar no dudes en contactar conmigo.