Taking some notes on how to use DietPi.
- Attempt to use wifi. I have a static address reserved for this device, so I used the static IP config section as well.
Had to install iptables and iptables-persistent. When installing iptables-persistent, it saves rules that exist at time of install to /etc/iptables/rules.v4 and /etc/iptables/rules.v6. Additional changes have to be saved to these files, using iptables-save. The iptables-persistent package loads these config files at boot.