Archive for April 2009


Only obscure if you weren’t there or haven’t heard the story.

Portmaster 3 as a T1 Router

Once in a while I need to use point-to-point T1 links to connect two sites. Even in today’s world of broadband, a T1 still has lower latency and a higher “upload” rate than VPN over broadband accounts. Here’s how to configure two old Portmaster 3’s to connect back to back: Side A: set line1 t1 […]

Linux Firewall Helper

I never really managed to wrap my head around Linux iptables. I can understand pf in BSD without trying too hard, but iptables is in a world of its own. Since I spend most of my time using Cisco routers, there’s not any real incentive for me to learn iptables for the once in a […]