QGIS Server is a WMS server for your QGIS project. It requires fcgi. It is optionally built at the same time as QGIS; you need to specify SERVER=yes to the SlackBuild, for example SERVER=yes sh qgis.SlackBuild By default, the server is installed into /var/www/cgi-bin/qgis, and so the WMS URL is 'http://<hostname>/cgi-bin/qgis/qgis_mapserv.fcgi'. However, a different directory can be specified by passing CGIBINDIR=<path> to the SlackBuild script. After installing QGIS (and the server), you will need to set up the server. To serve a single QGIS project, this can be done as follows: * In the qgis 'Project Properties' window, on the 'General' tab, ensure that 'Save paths' is set to 'absolute', and on the 'WMS Server' tab, fill in all relevant details (particularly including 'Coordinate Systems Restrictions'). * Create a symlink to your QGIS project file from /var/www/cgi-bin/qgis/: ln -s /home/user/maps/mymap.qgs /var/www/cgi-bin/qgis/