Portsentry is very easy to install and takes only a few minutes.... as much as its useful software in my opinion it should *not* be included with DA - not everyone wants it, some may be using ports that stops etc (causing confusion especially with users who don't know it).. where as if the user installs portsentry they should know what it does how it works and how to chnage things around themselves
Leave additional unrequired security such as firewalls portsentry etc etc for the users who know how to use them - playing with ports is a bad idea and should be done by the sysadmin ONLY
Chris