UPDATE: The TRACE/TRACK methods are disabled in Plesk 8.4 right out of the box!
It’s always been a bit of a challenge to disable TRACE and TRACK methods with Plesk. The only available options were to create a ton of vhost.conf files or adjust the httpd.include files and prevent modifications with
chattr (which is a bad idea on many levels).
Luckily, Parallels has made things easier with a new knowledge base article.