Puomi is Internet router software for home and small office use. It consists of Debian with a custom configuration to enable use of a PC as a router.
To use Puomi you need:
To install, short version:
These steps will be covered in more detail below.
Download the latest release image and helper scripts, using any download tool you like.
Decompress the image.
Create an empty installer configuration file. Below we call it
your.yaml, but you can call it anything. If you want, you can add content, see v-i documentation for details.
Insert the USB drive to a USB port, and find out the device name. (GNOME Disks is a good tool for this. Kernel messages will also tell you.) Below, we call it
Write the installer to the USB drive and configure it.
sudo bash write-and-config.sh your.yaml /dev/sdx v-i.img
Create a "specification" file to describe the installation you want to do. Below we call it
x220.yaml. You can pick any host name. The drive must be the drive from which the PC boots. You may want to check what it is called when the installer runs: it may change when the installer USB drive is plugged in.
drive: /dev/sda hostname: x220 extra_playbooks: - puomi-playbook.yml ansible_vars: user_pub: | YOUR SSH PUBLIC KEY GOES HERE
user_pub variable will be put into the
authorized_keys file. This will allow you to maintain the installed Puomi router from another machine using Ansible.
Copy the spec file and the Puomi initial playbook to the installer drive, to
root user home directory.
sudo mount /dev/sdx2 /mnt sudo cp x220.yaml puomi-playbook.yml /mnt/root/ sudo umount /mnt
Make sure everything is written to the drive, then remove it.
udisksctl power-off -b /dev/sdx
You may want to label the physical drive so you remember which one is the installer.
Connect the router PC's main Ethernet port to your home Internet connection. This can be directly to the external network, or to your existing router.
Insert the installer USB to the router PC and boot off it. This may involve telling your BIOS which drive to boot from. Every BIOS is different about this.
Log in via the virtual console as
root (no password required) and run the installer. Note that logging in as root without a password only works on the virtual console, not via SSH.
v-i --verbose x220.yaml
This may take several minutes.
Reboot the router PC. Depending on your BIOS, you may need to remove the installer USB drive, but wait until the installer kernel has unmounted it. To be entirely sure, power off, then remove the drive, then power on again.
The router PC should now boot into a Debian system that has been configured as an Internet router. If you connect your laptop to the router (any Ethernet port except
eth0), it should be able to access the Internet normally. The router provides hosts on the LAN addresses via DHCP.
The router implements NAT, which means that your laptop won't be accessible directly from the public side of the router PC: any connections must be initiated by the laptop. There is, however, no firewall, unless you set it up yourself.
You have root. You can configure the router as you wish. The
puomi Ansible role in the Puomi source tree may be useful, if Ansible is your kind of thing. You can also use any other configuration management tooling you prefer.