Anything on the root OS must be configured to only take the 
prime ip or if it is a wildcarding app it will over-ride 
anything which tries to bind to a socket inside a jail on 
that jail's ip.


the jail<name> files are meant to be in the jails 
themselves.

the porstnapper is to keep the single ports and distfiles 
dirs up to date.
the main jail configuration is in the rc.conf
fstab's contents can be done via smaller files directed by 
config in the root rc.conf - but is it worth it ?

--
Alex