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Installation - LimeSurvey CE/de: Difference between revisions

From LimeSurvey Manual

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<languages />
<languages />


<div class="simplebox"> Note: These installation instructions are for version 2.0 or later. Older instructions for 1.92 can be found [[Installation Version 1.92 or older|here]] and update instructions can be found [[Upgrading from a previous version|here]] </div>
<div class="simplebox"> Note: These installation instructions are for version 2.0 or later. Older instructions for 1.92 can be found [[Installation Version 1.92 or older|here]] and update instructions can be found [[Upgrading from a previous version|here]]. </div>


=Allgemeines=
=Allgemeines=
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*On your webserver:<br />In that case just follow the instructions on this page starting with step 1.
*On your webserver:<br />In that case just follow the instructions on this page starting with step 1.


*On your local Windows PC:<br />You usually only want to install LimeSurvey on your local PC if you want to create surveys locally (mainly for speed or development/test reasons) and upload them later to your live LimeSurvey installation on a web server. For this we have prepared a special package for LimeSurvey which includes the web server, the database and the LimeSurvey application and [[Installation of the LimeSurvey XAMPP package|instructions how to install it]].
*On your local Windows PC:<br />You usually only want to install LimeSurvey on your local PC if you want to create surveys locally (mainly for speed or development/test reasons) and upload them later to your live LimeSurvey installation on a web server. We have prepared for this a special package for LimeSurvey which includes the web server, the database and the LimeSurvey application and [[Installation of the LimeSurvey XAMPP package|instructions how to install it]].


=Überprüfen Sie, ob Ihr Server die Mindestvoraussetzungen erfüllt=
=Überprüfen Sie, ob Ihr Server die Mindestvoraussetzungen erfüllt=
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Stellen Sie sicher, dass Ihr Server die folgenden zusätzlichen Anforderungen erfüllt. Die meisten dieser Anforderungen werden allerdings auch während der Installation überprüft.
Stellen Sie sicher, dass Ihr Server die folgenden zusätzlichen Anforderungen erfüllt. Die meisten dieser Anforderungen werden allerdings auch während der Installation überprüft.


Required:
{{Note|The minimum set of requirements will also be checked during the installation process!}}
* Minimum 180MB disk space
 
The minimum set of requirements:
* Minimum 180 MB disk space
* MySQL 5.5.3 or later '''OR''' Microsoft SQL Server 2005 or later '''OR''' Postgres 9 or later
* MySQL 5.5.3 or later '''OR''' Microsoft SQL Server 2005 or later '''OR''' Postgres 9 or later
* Minimum PHP 5.4 or later, however we recommend PHP 5.6.x or later with the following modules/libraries enabled:
* Minimum PHP 5.3.3 or later, however we recommend PHP 5.5.x or later with the following modules/libraries enabled:
** mbstring (Multibyte String Functions) extension library (see also [[Installation FAQ#What is this mbstring (Multibyte String Functions) library?|Installation FAQ]])
** mbstring (Multibyte String Functions) extension library (see also [[Installation FAQ#What is this mbstring (Multibyte String Functions) library?|Installation FAQ]])
** PDO database driver for MySQL (pdo_mysql or pdo_mysqli) or Postgres (pdo_pgsql) or MSSQL ([http://php.net/manual/en/ref.pdo-sqlsrv.php pdo_sqlsrv] for Windows and [http://www.php.net/manual/en/ref.pdo-dblib.php pdo_dblib] for Linux)
** PDO database driver for MySQL (pdo_mysql or pdo_mysqli) or Postgres (pdo_pgsql) or MSSQL ([https://php.net/manual/en/ref.pdo-sqlsrv.php pdo_sqlsrv] for Windows and [http://www.php.net/manual/en/ref.pdo-dblib.php pdo_dblib] for Linux)
** Also we assume in general that all PHP default libraries are enabled (like hash, session, etc.).
** Also, we assume in general that all PHP default libraries are enabled (like hash, session, etc.).


<div class="simplebox"> Note: LimeSurvey 2.x uses different database drivers than 1.x . If you get a message not No DBO driver was found during the installation you will have to contact your webspace provider and ask them to activate one of the aforementioned database driver libraries. </div>
<div class="simplebox"> Note: LimeSurvey 2.x uses different database drivers than 1.x . If you get a message not No DBO driver was found during the installation, you will have to contact your webspace provider and ask them to activate one of the aforementioned database driver libraries. </div>


<div class="simplebox"> Note: If you are connecting from Linux to a MSSQL database on a Windows server using the dblib PDO driver, then the underlying FreeTDS needs to be set up correctly. Check out the [[Troubleshooting]] page for more info.</div>
<div class="simplebox"> Note: If you are connecting from Linux to a MSSQL database on a Windows server using the dblib PDO driver, then the underlying FreeTDS needs to be set up correctly. Check out the [[Troubleshooting]] page for more info.</div>


Optional PHP Extensions:
Optional PHP Extensions:
* '''GD-Library''' '''with FreeType support''' installed is needed for captchas or nice charts in statistics - see [http://php.net/manual/image.setup.php PHP GD-Library Extension documentation]
* '''GD-Library''' '''with FreeType support''' installed is needed for captchas or nice charts in statistics - see [https://php.net/manual/image.setup.php PHP GD-Library Extension documentation]
* '''IMAP''' (pretty standard) is needed for the [[Email bounce tracking system]] - see [http://php.net/manual/imap.setup.php PHP IMAP Extension documentation]
* '''IMAP''' (pretty standard) is needed for the [[Email bounce tracking system]] - see [https://php.net/manual/imap.setup.php PHP IMAP Extension documentation]
* '''LDAP''' installed is needed to import tokens using LDAP - see [http://de.php.net/manual/en/ldap.installation.php PHP LDAP Documentation]
* '''LDAP''' installed is needed to import tokens using LDAP - see [https://php.net/manual/en/book.ldap.php PHP LDAP Documentation]
* '''Zip''' (pretty standard) for template upload and import resources Zip archives - see [http://php.net/manual/zip.setup.php PHP Zip Extension documentation]
* '''Zip''' (pretty standard) for template upload and import resources Zip archives - see [https://php.net/manual/zip.setup.php PHP Zip Extension documentation]
* '''Zlib''' (pretty standard) is needed for the [[ComfortUpdate]] - see [http://php.net/manual/zlib.setup.php PHP Zlib Extension documentation]
* '''Zlib''' (pretty standard) is needed for the [[ComfortUpdate]] - see [https://php.net/manual/zlib.setup.php PHP Zlib Extension documentation]


In den meisten Fällen wird Ihnen der Provider Ihres Webspace zu diesen optionalen Komponenten weiterhelfen.
In most cases, your webspace provider or system administrator will be able to help you out on these optional components.


Wenn Sie LimeSurvey auf IIS laufen lassen wollen, dann könnte der folgende Link helfen: "[[Installation on XP with IIS]]" (in Englisch).
If you want to run Microsoft's IIS server, taking a look at "[[Installation on XP with IIS]] might also help.


===Browser compatibility===
===Browser compatibility===
For the survey taking side we currently support IE9 and all newer comparable browsers like FF, Chrome, Opera, etc. with activated JavaScript.
'''For the survey-taking side''', we currently support IE9 and all newer comparable browsers like FF, Chrome, Opera, etc. with activated JavaScript.
For the administration part we currently support IE11 and all newer comparable browsers like FF, Chrome, Opera, etc. with activated JavaScript.
'''For the administration part''', we currently support IE11 and all newer comparable browsers like FF, Chrome, Opera, etc. with activated JavaScript.
We do not support any IE version running in Intranet-mode or Compatibility-mode!
We do not support any IE version running in Intranet-mode or Compatibility-mode!


==Screen sizes==
==Screen sizes==
We support any reasonable screen size for survey taking (360px x 640px and up).
We support any reasonable screen size for survey taking (360px x 640px and up).
For the LimeSurvey administration the minimum screen resolution supported is 1280px x 1024px.
The minimum supported screen resolution for the LimeSurvey administration page is 1280px x 1024px.


==Hosting for LimeSurvey==
==Hosting for LimeSurvey==


LimeSurvey should work with most hosting companies which provide PHP and MYSQL. If you want a ready-installed version of LimeSurvey consider using [https://www.limesurvey.org/component/limeservice/?view=limeservice&task=limeservice.routeAlternatives LimeSurvey Professional], else check out our [[LimeSurvey-compatible hosting companies|list of LimeSurvey-compatible hosting companies]].
LimeSurvey should work with most hosting companies that provide PHP and MYSQL. If you want a ready-installed version of LimeSurvey, you could try [https://www.limesurvey.org/editions-and-prices/limesurvey-pro/editions-and-prices-professional LimeSurvey Professional], else check out our [[LimeSurvey-compatible hosting companies|list of LimeSurvey-compatible hosting companies]].


=Laden Sie das LimeSurvey-Paket herunter=
=Laden Sie das LimeSurvey-Paket herunter=
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=Auspacken/Entkomprimieren des LimeSurvey-Pakets=
=Auspacken/Entkomprimieren des LimeSurvey-Pakets=


Entpacken Sie die ZIP-Datei in einem Verzeichnis Ihrer Wahl. Benutzen Sie hierfür ein Entkomprimierungs-Tool Ihrer Wahl.
Uncompress the zip file into a dedicated directory/folder using your preferred compression software. When you uncompress the file make sure that you uncompress the directory structure with the files (this is default behavior for most compression programs). The path name for the installation directory should not include '''(''' or ''')''' special characters, but may include the '''space''' character.
 
Achten Sie darauf, dass beim Entpacken die Verzeichnisstruktur erhalten bleibt, dies sollte in den meisten Fällen die Standardeinstellung sein. Der Pfadname sollte keine ungewöhnliche Zeichen wie Umlaute oder Klammern enthalten.


=Sammeln Sie die nötigen Informationen über Ihren Server=
=Sammeln Sie die nötigen Informationen über Ihren Server=


Um LimeSurvey korrekt installieren zu können werden Sie die folgenden Informationen über Ihren Server benötigen:
You will need to know the following things to install LimeSurvey on your web server correctly:
*Die URL unter der Ihr LimeSurvey-Skript im Internet zu finden sein wird (Beispiel: 'http://ihre.domain.com/limesurvey')
*Your intended website URL where your scripts will reside (e.g: ''http://my.domain.com/limesurvey'')
*Der Pfad unter der das Skript auf Ihrem Server zu finden sein wird (Beispiel: '/home/usr/htdocs/limesurvey')
*The physical disk location on your server where your scripts will reside (e.g.: ''/home/usr/htdocs/limesurvey'')
*Die IP/net-Adresse Ihres Datenbank-Servers (Beispiel: 'localhost')
*The IP/net location of your database server (ie: ''localhost'')
*Sollte Ihr Datenbankserver keinen Standard-Port verwenden, müssen Sie diesen herausfinden (Standard ist für MySQL Port 3306).
*If your database server uses a non-standard port, find out which port it is.
*Ihr Benutzername und Passwort für den Datenbank-Server.
*Your user name and password for your database server
*Bei den meisten Providern kann das Skript die Datenbank nicht selbst erstellen, sondern Sie müssen dies manuell machen. Wenn Sie einen solchen Provider nutzen, dann erstellen Sie nun eine Datenbank mit einem beliebigen Namen (z.B. 'LimeSurvey').
*With most providers you can't let the script create the database, but have to do it yourself. If you are using such a provider, please create a database (for example ''limesurvey'') yourself.


=Hochladen der Dateien auf Ihren Webserver=
=Hochladen der Dateien auf Ihren Webserver=
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Benutzen Sie ein FTP-Programm, verbinden sich zu Ihrem Server und erstellen Sie ein Verzeichnis, in dem Sie LimeSurvey speichern möchten. Danach müssen Sie die Dateien unter Beibehaltung der Verzeichnisstruktur auf den Webserver''' im Binärmodus''' hochladen (überprüfen Sie die Einstellungen Ihre FTP-Programms). Beim Hochladen im ASCII Modus kann es zu zahlreichen Problemen und Fehler kommen.
Benutzen Sie ein FTP-Programm, verbinden sich zu Ihrem Server und erstellen Sie ein Verzeichnis, in dem Sie LimeSurvey speichern möchten. Danach müssen Sie die Dateien unter Beibehaltung der Verzeichnisstruktur auf den Webserver''' im Binärmodus''' hochladen (überprüfen Sie die Einstellungen Ihre FTP-Programms). Beim Hochladen im ASCII Modus kann es zu zahlreichen Problemen und Fehler kommen.


=Verzeichnisrechte setzen=
=Set directory permissions=


Damit das Script richtig funktioniert, müssen Sie bestimmte Verzeichnisrechte setzen - dies gilt vor allen Dingen für Linux/*nix Systeme.
For the script to work properly it needs certain access to some directories - this applies especially to Linux/*nix systems.
* Das "/limesurvey/tmp" Verzeichnis und dessen Unterverzeichnisse benötigt vollen "Lesen/Schreiben"-Zugriff für Ihren Webserver.
*The '''"/limesurvey/tmp"''' directory (and all its subdirectories and files) are used for imports & uploads and should be set to ''Read & Write'' for your webserver.
* Wenn Sie Medien und Bilder hochladen wollen, dann sollten Sie das "/upload" Verzeichnis und die darin enthaltenen Dateien & Verzeichnisse auf Lesen/Schreiben für Ihren Webserver setzen
*The '''"/limesurvey/upload/"''' directory (and all its subdirectories and files) must also have ''Read & Write'' for your webserver in order to enable picture and media files upload.
* Alle anderen Verzeichnisse können auf nur Lese-Zugriff gesetzt werden. Sie können weiterhin die Rechte aller Dateien im "/limesurvey/admin" Verzeichnis auf 'Nur Lesen' setzen.
*The '''"/limesurvey/application/config/"''' directory also needs ''Read & Write'' permissions for your webserver.
*The other directories can be set to ''Read Only''. You may wish in Linux/Unix to set the permissions on each file within the /limesurvey/admin directory to ''Read Only''.


{{Hint|Text=If you are using Linux then setting permissions depends on your webserver configuration. For example, using Apache HTTPD on CentOS, use '''chmod -R 755 <directory> ; chown -R apache <directory>'''. This will give everyone access to read, and your webserver will have permission to write. For more information on Linux permissions, see http://www.linux.com/learn/tutorials/309527-understanding-linux-file-permissions}}
{{Alert|If you are using Linux, then setting permissions depends on your webserver configuration. For example, if you use Apache HTTPD on CentOS, type '''chmod -R 755 <directory> ; chown -R apache <directory>'''. This will give everyone access to read, and your webserver will have the permission to write. Check the [https://www.linux.com/learn/tutorials/309527-understanding-linux-file-permissions following link] for more information on Linux permissions.}}


=Erstellen Sie einen Datenbank-Benutzer=
=Erstellen Sie einen Datenbank-Benutzer=


LimeSurvey erstellt die Datenbank und die beinhaltenden Tabellen. Um dies dies zu tun, benötigt LimeSurvey den Benutzernamen und das Passwort des Datenbank-Benutzers. Im Allgemeinen empfehlen wir einen Datenbank-Benutzer mit den folgenden Berechtigungen zu erstellen:
LimeSurvey will create a database and the tables inside it. To be able to do this, it will need the user name and password of a database user. We generally recommend to create a database user with the following permissions:


- MySQL: SELECT, CREATE, INSERT, UPDATE, DELETE, ALTER, DROP, INDEX
- MySQL: SELECT, CREATE, INSERT, UPDATE, DELETE, ALTER, DROP, INDEX
Line 95: Line 96:
=Führen sie das Installationsskript aus=
=Führen sie das Installationsskript aus=


'''Go to "http://www.example.com/limesurvey/admin"'''. If you configured everything correctly the LimeSurvey installer should be starting - just follow the instructions. You will be asked if to create the database and/or create the tables inside the database. LimeSurvey then creates the needed tables in the database.
'''Go to "http://www.example.com/limesurvey/admin"'''. If you configured everything correctly, the LimeSurvey installer should be starting - just follow the instructions. You will be asked if to create the database and/or create the tables inside the database. LimeSurvey will then create the needed tables in the database.


=Erster Aufruf der Administrationsoberfläche=
=Erster Aufruf der Administrationsoberfläche=
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After the installer has finished you are done! Open your browser and enter the URL to the LimeSurvey administration. Assuming you used 'limesurvey' as the directory name to store the files in, this will be something like "http://www.example.com/limesurvey/admin".
After the installer has finished you are done! Open your browser and enter the URL to the LimeSurvey administration. Assuming you used 'limesurvey' as the directory name to store the files in, this will be something like "http://www.example.com/limesurvey/admin".


Bei dem erstmaligen Start von LimeSurvey werden Sie in einem Anmeldefenster nach Benutzername und Kennwort gefragt. Die Standardzugangsdaten sind (sofern Sie sie nicht andere im Installationsprogramm angegeben haben)
You should get a login screen. The default login credentials (if not changed during the installation) are:




Line 116: Line 117:
=Wenn es Probleme gibt...=
=Wenn es Probleme gibt...=


Like all computer programs, most of the time things will work just like the instructions say, but sometimes they just won't. There are too many possible reasons for things not going according to plan to describe here. If you have trouble, first check out the [[Installation FAQ]]. If you don't find your answer there please post your problem and any error messages in the [https://www.limesurvey.org/forum LimeSurvey forums] on limesurvey.org or join the [irc://irc.freenode.net/limesurvey|LimeSurvey IRC channel]:
Like all computer programs, most of the time things will work just like the instructions say, but sometimes they just won't. There are too many possible reasons for things not going according to plan to describe here. If you have trouble, first check out the [[Installation FAQ]]. If you don't find your answer there, please post your problem and any error messages in the [https://www.limesurvey.org/forum LimeSurvey forums], open a [https://www.limesurvey.org/contact-us support ticket], or join the [irc://irc.freenode.net/limesurvey|LimeSurvey IRC channel]:


<div class="simplebox"><center>'''[https://www.limesurvey.org/community-services/live-chat Direct link to the official LimeSurvey IRC Channel]'''</center></div>
<div class="simplebox"><center>'''[https://www.limesurvey.org/community-services/live-chat Direct link to the official LimeSurvey IRC Channel]'''</center></div>

Revision as of 17:30, 2 August 2017

Note: These installation instructions are for version 2.0 or later. Older instructions for 1.92 can be found here and update instructions can be found here.

Allgemeines

The LimeSurvey project provides two ways to install LimeSurvey:

  • On your webserver:
    In that case just follow the instructions on this page starting with step 1.
  • On your local Windows PC:
    You usually only want to install LimeSurvey on your local PC if you want to create surveys locally (mainly for speed or development/test reasons) and upload them later to your live LimeSurvey installation on a web server. We have prepared for this a special package for LimeSurvey which includes the web server, the database and the LimeSurvey application and instructions how to install it.

Überprüfen Sie, ob Ihr Server die Mindestvoraussetzungen erfüllt

Stellen Sie sicher, dass Ihr Server die folgenden zusätzlichen Anforderungen erfüllt. Die meisten dieser Anforderungen werden allerdings auch während der Installation überprüft.

The minimum set of requirements will also be checked during the installation process!

The minimum set of requirements:

  • Minimum 180 MB disk space
  • MySQL 5.5.3 or later OR Microsoft SQL Server 2005 or later OR Postgres 9 or later
  • Minimum PHP 5.3.3 or later, however we recommend PHP 5.5.x or later with the following modules/libraries enabled:
    • mbstring (Multibyte String Functions) extension library (see also Installation FAQ)
    • PDO database driver for MySQL (pdo_mysql or pdo_mysqli) or Postgres (pdo_pgsql) or MSSQL (pdo_sqlsrv for Windows and pdo_dblib for Linux)
    • Also, we assume in general that all PHP default libraries are enabled (like hash, session, etc.).
Note: LimeSurvey 2.x uses different database drivers than 1.x . If you get a message not No DBO driver was found during the installation, you will have to contact your webspace provider and ask them to activate one of the aforementioned database driver libraries.
Note: If you are connecting from Linux to a MSSQL database on a Windows server using the dblib PDO driver, then the underlying FreeTDS needs to be set up correctly. Check out the Troubleshooting page for more info.

Optional PHP Extensions:

In most cases, your webspace provider or system administrator will be able to help you out on these optional components.

If you want to run Microsoft's IIS server, taking a look at "Installation on XP with IIS might also help.

Browser compatibility

For the survey-taking side, we currently support IE9 and all newer comparable browsers like FF, Chrome, Opera, etc. with activated JavaScript. For the administration part, we currently support IE11 and all newer comparable browsers like FF, Chrome, Opera, etc. with activated JavaScript. We do not support any IE version running in Intranet-mode or Compatibility-mode!

Screen sizes

We support any reasonable screen size for survey taking (360px x 640px and up). The minimum supported screen resolution for the LimeSurvey administration page is 1280px x 1024px.

Hosting for LimeSurvey

LimeSurvey should work with most hosting companies that provide PHP and MYSQL. If you want a ready-installed version of LimeSurvey, you could try LimeSurvey Professional, else check out our list of LimeSurvey-compatible hosting companies.

Laden Sie das LimeSurvey-Paket herunter

Download the latest stable LimeSurvey zip package (there are also gzip, bz2 and 7zip packages available for your convenience) and save it to your local disk.

Auspacken/Entkomprimieren des LimeSurvey-Pakets

Uncompress the zip file into a dedicated directory/folder using your preferred compression software. When you uncompress the file make sure that you uncompress the directory structure with the files (this is default behavior for most compression programs). The path name for the installation directory should not include ( or ) special characters, but may include the space character.

Sammeln Sie die nötigen Informationen über Ihren Server

You will need to know the following things to install LimeSurvey on your web server correctly:

  • Your intended website URL where your scripts will reside (e.g: http://my.domain.com/limesurvey)
  • The physical disk location on your server where your scripts will reside (e.g.: /home/usr/htdocs/limesurvey)
  • The IP/net location of your database server (ie: localhost)
  • If your database server uses a non-standard port, find out which port it is.
  • Your user name and password for your database server
  • With most providers you can't let the script create the database, but have to do it yourself. If you are using such a provider, please create a database (for example limesurvey) yourself.

Hochladen der Dateien auf Ihren Webserver

Benutzen Sie ein FTP-Programm, verbinden sich zu Ihrem Server und erstellen Sie ein Verzeichnis, in dem Sie LimeSurvey speichern möchten. Danach müssen Sie die Dateien unter Beibehaltung der Verzeichnisstruktur auf den Webserver im Binärmodus hochladen (überprüfen Sie die Einstellungen Ihre FTP-Programms). Beim Hochladen im ASCII Modus kann es zu zahlreichen Problemen und Fehler kommen.

Set directory permissions

For the script to work properly it needs certain access to some directories - this applies especially to Linux/*nix systems.

  • The "/limesurvey/tmp" directory (and all its subdirectories and files) are used for imports & uploads and should be set to Read & Write for your webserver.
  • The "/limesurvey/upload/" directory (and all its subdirectories and files) must also have Read & Write for your webserver in order to enable picture and media files upload.
  • The "/limesurvey/application/config/" directory also needs Read & Write permissions for your webserver.
  • The other directories can be set to Read Only. You may wish in Linux/Unix to set the permissions on each file within the /limesurvey/admin directory to Read Only.
  If you are using Linux, then setting permissions depends on your webserver configuration. For example, if you use Apache HTTPD on CentOS, type chmod -R 755 <directory> ; chown -R apache <directory>. This will give everyone access to read, and your webserver will have the permission to write. Check the following link for more information on Linux permissions.


Erstellen Sie einen Datenbank-Benutzer

LimeSurvey will create a database and the tables inside it. To be able to do this, it will need the user name and password of a database user. We generally recommend to create a database user with the following permissions:

- MySQL: SELECT, CREATE, INSERT, UPDATE, DELETE, ALTER, DROP, INDEX

- PostgreSQL: SELECT, INSERT, UPDATE, DELETE, TRUNCATE, TRIGGER

- Microsoft SQL Server: Unknown - if you can find out this information please complete it.

Führen sie das Installationsskript aus

Go to "http://www.example.com/limesurvey/admin". If you configured everything correctly, the LimeSurvey installer should be starting - just follow the instructions. You will be asked if to create the database and/or create the tables inside the database. LimeSurvey will then create the needed tables in the database.

Erster Aufruf der Administrationsoberfläche

After the installer has finished you are done! Open your browser and enter the URL to the LimeSurvey administration. Assuming you used 'limesurvey' as the directory name to store the files in, this will be something like "http://www.example.com/limesurvey/admin".

You should get a login screen. The default login credentials (if not changed during the installation) are:


User: admin
Passwort: password


Nach dem ersten Anmelden werden Sie aufgefordert ein neues Passwort zu setzen. Viel Spaß!

Wenn es Probleme gibt...

Like all computer programs, most of the time things will work just like the instructions say, but sometimes they just won't. There are too many possible reasons for things not going according to plan to describe here. If you have trouble, first check out the Installation FAQ. If you don't find your answer there, please post your problem and any error messages in the LimeSurvey forums, open a support ticket, or join the IRC channel: