> Well , what I meant by "Security System" was what some people
> call "Convergence" Technology.Sitting at my PC (running one of the Unixen)
> I want my machine to be able to control by means of a password , who will
> open my gate and enter and who will not.
> Well , I am looking for do it yourself-s , How-tos , books or  web sites
> in this regard.

so generally if you use netbsd and think you have secure system.

contraty to other "easy to use" systems it doesn't install any network
daemons by default (except inetd but with all-hashed inetd.conf).

then YOU decide what you like to run and before it just ask about security
dangers of the daemon you want to run.

if it's your personal machine only remote security holes could be a
problem so it even simplifies problem.

but don't forget about other security problem - java in browser.
in theory it can't make any danger. but it's theory.

the simplest solution is to disable it, what you will do is your choise