How-to setup a zerotier moon for the Parrot Disco/Bebop 2 UAVPAL 4G/LTE softmod

zerotier-moon

### SERVER SETUP @ Home/Cloud Linux Server (here Debian 9)

echo "deb http://download.zerotier.com/debian/stretch stretch main" | sudo tee /etc/apt/sources.list.d/zerotier.list
sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 1657198823E52A61
sudo apt-get update
sudo apt-get install zerotier-one
sudo zerotier-idtool initmoon /var/lib/zerotier-one/identity.public >moon.json
nano -w moon.json
# change the line
	"stableEndpoints": []
# to your public and static IP and port 9993, e.g.
	"stableEndpoints": [ "1.2.3.4/9993" ]

sudo zerotier-idtool genmoon moon.json
# expected output: "wrote 0000000123456789.moon (signed world with timestamp 1572791609983)"
sudo mkdir /var/lib/zerotier-one/moons.d
# change 0123456789 in the command below to the output of the earlier "zerotier-idtool genmoon" command
sudo cp 0000000123456789.moon /var/lib/zerotier-one/moons.d
sudo chown -R zerotier-one:zerotier-one /var/lib/zerotier-one/moons.d

# Add port-forwarding/open firewall on 9993/udp
sudo service zerotier-one restart

### NOTES: ###
### 1. If adding additional servers to a moon "cluster", the /var/lib/zerotier-one/moons.d/*.moon file has to be copied to all
### other moons manually.
### Clients will automatically get updated!
###
### 2. If a client is using a moon(-cluster) and none of the moons are available, no relayed connections will work!


### CLIENT SETUP @ Parrot Disco/Parrot Bebop 2 with UAVPAL 4G softmod installed (inside telnet session, with active 4G connection)

# change 0123456789 in the command below twice to the output of the earlier "zerotier-idtool genmoon" command
/data/ftp/uavpal/bin/zerotier-one -q orbit 0123456789 0123456789
# expected output: "200 orbit OK"
/data/ftp/uavpal/bin/zerotier-one -q listmoons
# wait some time if the command above only lists "[]", and try running it again. You should see several lines of output before you continue

# make sure SC2 is connected in Wi-Fi mode (green)
/data/ftp/uavpal/bin/uavpal_sc2adb.sh
	mkdir /data/lib/zerotier-one/moons.d
	exit
/data/ftp/uavpal/bin/adb push /data/lib/zerotier-one/moons.d/*.moon /data/lib/zerotier-one/moons.d
# expected output: "36 KB/s (259 bytes in 0.006s)" (numbers can vary)

# restart Disco/Bebop 2 and SC2