diff -r 76ab3c71aff2 -r c67bcee93248 doc/book/en/admin/additional-tips.rst
--- a/doc/book/en/admin/additional-tips.rst	Mon Jul 06 17:39:35 2015 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,64 +0,0 @@
-
-.. _Additional Tips:
-
-Backups (mostly with postgresql)
---------------------------------
-
-It is always a good idea to backup. If your system does not do that,
-you should set it up. Note that whenever you do an upgrade,
-`cubicweb-ctl` offers you to backup your database.  There are a number
-of ways for doing backups.
-
-Using postgresql (and only that)
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-Before you
-go ahead, make sure the following permissions are correct ::
-
-   # chgrp postgres /var/lib/cubicweb/backup
-   # chmod g+ws /var/lib/cubicweb/backup
-   # chgrp postgres /etc/cubicweb.d/*<instance>*/sources
-   # chmod g+r /etc/cubicweb.d/*<instance>*/sources
-
-Simply use the pg_dump in a cron installed for `postgres` user on the database server::
-
-    # m h  dom mon dow   command
-    0 2 * * * pg_dump -Fc --username=cubicweb --no-owner <instance> > /var/backups/<instance>-$(date '+%Y-%m-%d_%H:%M:%S').dump
-
-Using :command:`cubicweb-ctl db-dump`
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-The CubicWeb way is to use the :command:`db-dump` command. For that,
-you have to put your passwords in a user-only-readable file at the
-home directory of root user.  The file is `.pgpass` (`chmod 0600`), in
-this case for a socket run connection to PostgreSQL ::
-
-    /var/run/postgresql:5432:<instance>:<database user>:<database password>
-
-The postgres documentation for the `.pgpass` format can be found `here`_
-
-Then add the following command to the crontab of the user (`crontab -e`)::
-
-    # m h  dom mon dow   command
-    0 2 * * * cubicweb-ctl db-dump <instance>
-
-
-Backup ninja
-~~~~~~~~~~~~
-
-You can use a combination `backup-ninja`_ (which has a postgres script in the
-example directory), `backuppc`)_ (for versionning).
-
-Please note that in the *CubicWeb way* it adds a second location for your
-password which is error-prone.
-
-.. _`here` : http://www.postgresql.org/docs/current/static/libpq-pgpass.html
-.. _`backup-ninja` : https://labs.riseup.net/code/projects/show/backupninja/
-.. _`backuppc` : http://backuppc.sourceforge.net/
-
-.. warning::
-
-  Remember that these indications will fail you whenever you use
-  another database backend than postgres. Also it does properly handle
-  externally managed data such as files (using the Bytes File System
-  Storage).