install the latest syncthing on N1 box

// add the soft source
sudo apt install curl apt-transport-https
curl -s https://syncthing.net/release-key.txt | sudo apt-key add -
sudo echo "deb https://apt.syncthing.net/ syncthing release" > /etc/apt/sources.list.d/syncthing.list
sudo apt-get update
sudo apt-get install syncthing
sudo ufw allow 22000/TCP
sudo ufw allow 8384
sudo ufw allow 21027/UDP