Translations:Installation - LimeSurvey CE/26/en
From LimeSurvey Manual
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 or in Linux/Unix. You may wish to set the permissions on each file within the /limesurvey/admin directory to Read Only.