LanTurtle-Tailscale-Conf

Configure a Lan Turtle from Hak5 with SD card to work with Tailscale (https://hak5.org/products/lan-turtle)

Kind of a port from here: https://github.com/adyanth/openwrt-tailscale-enabler just some parts I couldn't get working so I did a bit of a mix-n-match.

Pre Tailscale install/configuration

1. Follow these steps for setting up the Lan Turtle https://docs.hak5.org/lan-turtle/lan-turtle-by-hak5/
2. Make sure you're running the latest firmware which is 6.2 from 2019 -> https://downloads.hak5.org/turtle/mk1
3. Make sure you have the recovery firmware on hand in case you sort of brick this thing like I did multiple times (https://downloads.hak5.org/api/devices/lanturtle/firmwares/recovery)
4. Finally, the Lan Turtle should be connected to the internet for this (I think that goes without saying)

Installing and configuring tailscale

1. cd /sd
2. wget https://pkgs.tailscale.com/stable/tailscale_1.96.4_mips.tgz
3. gunzip tailscale_1.96.4_mips.tgz && tar -xvf tailscale_1.96.4_mips.tar
4. Before we do anything else let's update the packages and download some dependencies
   1. opkg update
   2. opkg install libustream-openssl ca-bundle kmod-tun
5. ln -s /sd/tailscale_1.96.4_mips/tailscale /usr/bin/tailscale (symbolic link since there isn’t any real room outside of /sd to store these files)
6. ln -s /sd/tailscale_1.96.4_mips/tailscaled /usr/bin/tailscaled
7. tailscaled --state=/sd/tailscaled.state &
8. tailscale up it will provide a login link like so https://login.tailscale.com/a/dasjdhaksda398 authenticate to your tailnet, approve the device if you have that setting enabled, and remove key expiry or we will lose access to the device after x days
9. create this file in /etc/init.d/tailscale (Allows tailscale to start on boot and all that good stuff we need)
10. chmod +x /etc/init.d/tailscale
11. /etc/init.d/tailscale start
12. /etc/init.d/tailscale enable
13. ls /etc/rc.d/S*tailscale* -> you should see something like /etc/rc.d/S99tailscale