We've found a way to make the easy but infamous "curl|bash" more secure. If your system has GPG, try this:
Some users may need to replace gpg with gpg2 in the above commands.
This first makes sure you have the firstname.lastname@example.org GPG key. If this succeeds it then fetches our install script and pipes it through GPG. This verifies the script against its embedded signature, and if it is valid only the verified portion is forwarded through to "sudo bash." Otherwise the script is not executed and you will see a GPG error about signature check failure.
The install.zerotier.com script first characterizes your Linux distribution and adds the ZeroTier official package repository if we have one available for you. It then installs the zerotier-one package, enables and starts the service, and prints your new 10-digit ZeroTier address.
For those who are a bit more
careless lazy brave, the script also works without GPG:
ZeroTier One for Synology NAS and personal cloud devices has been tested on Synology DSM 6.0 and 6.1 and can be installed on any ARM or x86/x86_64 based Synology device. Once installed you can join virtual networks from the ZeroTier One web UI.