how stupid is this?

[Dave Rocks]

Hello,
I run a 3.2-stable server under my sofa at home. It's under there so my daughter can't pull the wires out!
anyway...
My question is how stupid is it to run DNS(tinydns),Mail(qmail) + my home firewall/router ( NAT + pf ) on the same machine??
I always read NEVER run anything extra on your firewall. For my small home set-up ( i get maybe 20 emails a day & 50 dns requests ) does it really matter that I run dns & mail on my firewall. My pf rules are pretty standard, a default deny + allow in UDP on port 53 & TCP on 25.
I also allow in SSH, WWW but only from my work IP address, so that shouldn't affect things & POP but only from internal hosts.
I'm going to be going wireless on my LAN side soon with the same BSD box being my wireless access point (gonna use IPSEC), as long as my pf rules as tight should I be o.k? Or am I being dumb & I need to do something like stick a DMZ machine in for my dns/mail?
Cheers for reading.
Dave

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