Synology NAS DSM7 - services don't work

I have had 2 synology NAS in my tailscale network - everything has been working great for about 3 months - have upgraded to DSM 7 and now some of the services don’t seem to work

I can log in, I can map network drives, I can use synology drive using tailscale ip address but other features don’t work where previously they did using the ip address (eg hyperbackup, drive sync)

I have uninstalled and reinstalled, and seem to be facing same issues

Is anyone else facing this? Have made sure that the firewall ports for those apps are open on NAS
Its off that some work and some don’t
Thanks for suggestions

Does your Synology NAS support tun device?

I am not sure what that means actually

I have a DS920 and a DS918

Can you check /dev/net/tun ?

On DSM 7 we currently use a userspace implementation of Tailscale and don’t modify the system’s routing table. So with DSM 7 you can connect TO your Synology, but you can’t connect out FROM your Synology to other stuff.

We might be able to make it work yet on DSM 7 but haven’t finished.

Thanks for the explanation - I am currently using TS and ZT and the combo seems to cover everything between them
Hopefully can get TS back to the role of covering everything it was before

I just installed Tailscale on a Synology DS918+ with DSM7.

From what I read, it’s possibile to connect TO the Synology, but not FROM it.
Does it also involve ping?

I’m able to ping my Synology from both Android and Mac client, but not the other way around.
I thought I was missing something because ping was the first step in the setup guide.


Enabling Synology outbound connections · Tailscale

You’ll need Tailscale 1.12.4 which should appear in the Synology Package Center very soon, if not today.

this is exciting!

once it appears, i will test it

Hi @bradfitz - any updates on this? I am also very much looking for this but cannot find the updated package in synology package center.

Meanwhile I was wondering if static routing settings in DSM 7 could help but within DSM Tailscale does not show up as gateway.

Any help is very much appriciated.

@Sebtec we are still waiting on the official release in the Synology Package Center.
If you would like to install the latest release without waiting for the Package Center, you can do so by downloading the latest releases from Releases · tailscale/tailscale-synology · GitHub.

Note: once installed, you will have to follow the steps in Enabling Synology outbound connections · Tailscale to enable outbound connections.

the latest release of Tailscale is available on Synology package center for Tailscale 1.12.4.