Firewall concepts

[Marcus Franke]

Hello,

I have two or three machines running with FreeBSD and after last
updates I compiled support for pf into the kernel as I want to
use it.

I have read some documents on the web but am still unsure what to
do as my machines are all just client computers and no gateways.

Would it be necessary to use a firewall on my client? I like the
concept of disabling unused services and even binding them to
interfaces where they belong to and do not expose them to everyone
on the local net by binding them to localhost. Kind of an heretic
question, but I am missing the clue where to start..

regards,
Marcus