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Backup and Restore
OTRS has built-in scripts for backup and restore. Execute the scripts with ``-h`` option for more information.
To create a backup, write permission is needed for ``otrs`` user for the destination directory.
The output of the script:
OTRS Update Guide
This work is copyrighted by OTRS AG (, Zimmersmühlenweg 11, 61440 Oberursel, Germany.
**OTRS** is installed by the *Customer Solution Team*. Please contact the *Customer Solution Team* via or in the `OTRS Portal <>`__.
OTRS (Open Technology – Real Service) is an open source ticket request system with many features to manage customer telephone calls and emails. It is distributed under the GNU General Public License (GPL) and tested on various Linux platforms. Do you receive many e-mails and want to answer them with a team of agents? You're going to love OTRS!
About This Manual
This manual is intended for use by system administrators. The chapters describe the updating of the OTRS software.
There is no graphical user interface for updating. System administrators have to follow the steps described in the following chapters.
All console commands look like ``username> command-to-execute``. Username indicates the user account of the operating system, which need to use to execute the command. If a command starts with ``root>``, you have to execute the command as a user who has root permissions. If a command starts with ``otrs>``, you have to execute the command as the user created for OTRS.
Don't select ``username>`` when you copy the command and paste it to the shell. Otherwise you will get an error.
We supposed that OTRS is installed to ``/opt/otrs``. If OTRS is installed to a different directory, then you have to change the path in the commands or create a symbolic link to this directory.
Performance Tuning
There is a list of performance enhancing techniques for your OTRS installation, including configuration, coding, memory use, and more.


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