docker compose

```yaml version: "3"

More info at https://github.com/pi-hole/docker-pi-hole/ and https://docs.pi-hole.net/

services: pihole: ...

Derived from here:

```bash sudo apt install -y fail2ban sudo systemctl enable fail2ban sudo systemctl start ...

To turn on UFW,

```bash sudo ufw allow 22 sudo ufw enable sudo ufw status sudo systemctl enable ufw sudo systemctl ...

see [this ...

see [this ...