review

A couple of my cousins posted their Christmas letters on their blogs, so I figured I’d follow suit, sort of. I actually put together a little photo collage that we sent out this year, but in case you didn’t get one (sorry), here it is: For more details, you can of course read back through […]

work

Seems a lot of my posts lately have been about stuff I’ve been doing at work. This one is going to follow in that tradition, even if it is Christmas. Maybe I’ll write something about Christmas later too… At any rate, my assistant (not a secretary) left last week for greener (maybe bluer is proper […]

static, but not

If you ever wondered if an interface with a dhcp obtained address can also have static aliases assigned to it, stop wondering. It can. That said, some (probably most) firewall distributions don’t allow setting aliases if your external IP is obtained via DHCP. I’m looking at you, IPCop (UPDATE: no longer developed). I thought maybe […]

direction

In case you’ve ever wondered how to figure out which type of port your traffic is using (source/destination) for the purposes of setting up iptables (with or without webmin), here’s a little help. The truth of the matter is that it varies depending on the type of traffic, but you typically want to set the […]

forwarding

This is about using webmin to administer a firewall/router on Ubuntu Server 9.10. If you’ve already done everything in Wall, then there are two parts to forwarding any port to a machine behind your router. We are operating under the assumption that eth1 is your external interface, and eth0 is your internal one. First, you […]