TestLink is open source test management system. It only requires LAMP + htaccess allow override. It is also easy to install.
<VirtualHost *:8080>
ServerAdmin NAME
ServerName testlink.servername.domain
ServerAlias
DocumentRoot /home/username/public_html/testlink/
<Directory /home/username/public_html/testlink/>
Options Indexes FollowSymLinks
AllowOverride All
#Require all granted
Order allow,deny
Allow from all
</Directory>
</VirtualHost>