I have install on a Debian 9 a qgis-server, python-qgis, apache2 and libapache2-mod-fcgid. Apache service is runnning.
I have a folder uder usr/lib/cgi-bin/
but when I request http://localhost//cgi-bin/test/qgis_mapserv.fcgi?SERVICE=WMS&VERSION=1.3.0&REQUEST=GetCapabilities&MAP=projet_test.qgs
I have edited the conf file to enable fcgi.
Everything works on qgis-server 2.14 but not on qgis-server 3.
Any ideas?