Sinology DS211j ZeroTier configuration

synology_zerotier.md

Taken from zerotier forum here

0. You have to access your Synology NAS with ssh. To enable SSH go to: Control Panel -> Terminal & SNTP.

1. First you have to install Entware-ng. It is a packet manager for devices like Synology NAS and many others.

   Here is the instruction for Synology NAS. So just follow it. https://github.com/Entware-ng/Entware-ng/wiki/Install-on-Synology-NAS

2. Then install ZeroTier using Entware:

   opkg install zerotier

3. Create the script to run zerotier: https://gist.github.com/meoso/b25bd410c8a54a1a013f0cc2d72b12ee

   vim /opt/etc/init.d/S90zerotier-one
   #... 
   chmod 755 /opt/etc/init.d/S90zerotier-one

   tun kernel module have to be there so zerotier could join the network

   vi /etc/modules.conf 
   

   add tun in the end

   To insert tunko manually (to test zerotier) sudo insmod /lib/modules/tun.ko

4. So we can now test the network:

   zerotier-cli join <network>
   

5. Setup cron. Synology cron is a bit different from linux. Here is a good article. The quote from it:

By default, crontab is only editable by root (/etc/crontab) and this needs to be done through a text editor rather than the usual crontab command. But there are a few other limitations that one can read here and there:

• the who field can only be filled with root, otherwise the entry is removed after a reboot
• the different fields need to be separated by a tab (no spaces), otherwise the entry is removed after a reboot

vim /etc/crontab

So put the next line. And replace spaces with tabs

*/5 * * * * root  /opt/etc/init.d/S90zerotier-one start

Thanks for the write-up, Dmitry.

We've since tried to make it a bit easier to install ZeroTier on Synology devices so I figured I'd drop a link in here to our official packages.

https://github.com/zerotier/ZeroTierNAS

thanks for the mention! im useful after-all. i came across this searching how to do it again for 1.2.x

I'd also like to link to issue 12 for future reference zerotier/ZeroTierNAS#12