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https://tailscale.com/kb/1054/dns#nameservers
and
https://tailscale.com/kb/1114/pi-hole#step-3-set-your-raspberry-pi-as-your-dns-server
Set tailscale to use your dns server to resolve your services (or all traffic if you prefer). Assuming your dns server is on 100.x.x.1:53, then put 100.x.x.1 as a nameserver.
I set that up, but the issue now is that my DNS server is replying back with the private IP, which is not accessible from tailscale.
EDIT: Figured this one out. Need to advertise the routes from one of my machines. Set that up and I am good to go now. Thanks!
Get yourself a domain name. It doesn't cost a whole lot and also allows you to complete DNS-01 challenges for SSL certs. It's also, like, your own. That's also a requirement for owning your email address.
(If you really don't want to pay and don't care about email, you can also use a shared domain DNS such as dedyn.io.)
You then simply set records to the Tailscale IP addresses of the hosts and you're good to go. Alternatively, you can also set them to the hosts' LAN subnet addresses and forward your subnet via a single subnet router; that's how I do it.
I own 3 different domains and just today set up SSL services for them using Traefik (made another post for an issue I’m having with that).
I ended up doing a subnet router and that got me what I was looking for.
I use wireguard and nginx but I set my WG DNS as the server ip. I have adguardhome running on the server and have added the external domains to map to their LAN address so theyre resolved locally when using the vpn or the LAN. A similar setup should work for you.
I assume when you say externally you mean via Tailscale, but without running Tailscale on each container/service?
What I currently do is run Tailscale on a few workstation-type devices, but everything else in my network doesn't run the Tailscale client (partly because things like printers, outers, etc can't run the client, and it's less convenient for things like servers).
Those type of devices can be accessed by running one Tailscale node as a Subnet Router. This device is then able to route traffic to it's subnet. Currently I use a Raspberry Pi for this.
My Pi also runs PiHole and acts as my DNS server, so it can name resolve local resources, though I don't think this is required, because Tailscale has its own DNS resolution called Magic DNS. So your Subnet Router should be able to resolve those names anyway (going off memory here, so be sure to check the docs, I may be misremembering how it works since I use the same device for DNS).
You don't even need Tailscale on a remote device to access your LAN - if you enable the Funnel service, you can provide an inbound encrypted path to specified resources.
That is almost the exact same thing I am doing. I have 2 Pi's running PiHole in HA and I just made one of them the subnet router to allow this access. Since I will be the only one using this, I don't care to use Funnel right now, but thanks for showing that to me. I am (obviously) new to using Tailscale, and that looks like a very neat feature.
Acronyms, initialisms, abbreviations, contractions, and other phrases which expand to something larger, that I've seen in this thread:
| Fewer Letters | More Letters |
|---|---|
| DNS | Domain Name Service/System |
| HA | Home Assistant automation software |
| ~ | High Availability |
| HTTP | Hypertext Transfer Protocol, the Web |
| IP | Internet Protocol |
| PiHole | Network-wide ad-blocker (DNS sinkhole) |
| SSL | Secure Sockets Layer, for transparent encryption |
| nginx | Popular HTTP server |
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