Download a Solar system tarball; you can find the release tarballs here. Extract the system tarball in your web server document root (e.g., /var/www/htdocs or /etc/apache2/sites/default). For purposes of this demo, we will call this directory SYSTEM. Note that this is inherently insecure; in a real project, you would place the system tarball outside of the document root and set up a virtual host to point to the SYSTEM/docroot directory. Change to the SYSTEM directory. You should see a file listing like this: $ cd SYSTEM $ ls -1F README config/ config.php docroot/ include/ index.php script/ source/ sqlite/ tmp/ $ Change the permissions on the tmp and sqlite directories so that they are writable by the web server. $ chmod -R 777 sqlite/ tmp/ $ Note that opening worldwide read/write access on these directories is inherently insecure. In a real project, you would chown or chgrp the SYSTEM to the web server username or group. You can now browse to http://localhost/index.php and see the Hello World! message.