and make the change there, the procedure seems to work.
However, at least in my case, logins to GOsa now seem to take forever. This may be a quirk of my setup though (in which case this bug should still be resolved by updating the README as per this comment). It would be good if someone else could test this to see if they also get very slow logins to GOsa.
If I change step 4. above to
sudo vi /etc/apache2/ conf.d/ gosa.conf
and make the change there, the procedure seems to work.
However, at least in my case, logins to GOsa now seem to take forever. This may be a quirk of my setup though (in which case this bug should still be resolved by updating the README as per this comment). It would be good if someone else could test this to see if they also get very slow logins to GOsa.