| 11 Sep 2025 |
 ghostbuster91 | hi folks, I am using mesh vpn with headscale, adguard DNS and avahi mDNS. How do I now make mDNS addresses available to the vpn network? GPT told me that I need to propagate have something that will answer DNS queries and respond with mDNS entries. Can I do this with adguard or do I need something else? What would you recommend in this case? | 15:31:02 |
 K900 | Uhhh what | 15:31:16 |
| K900 | Do you want to do mDNS over Tailscale? | 15:31:23 |
| K900 | Or do you want to do a subnet router thing that forwards mDNS? | 15:31:34 |
| ghostbuster91 | Currently when I am on the lan network I am able to resolve mDNS addresses, but if I turn on the VPN I lose that ability. I want to fix this as not all devices can run vpn client | 15:35:26 |
 @saiko:knifepoint.net | is tailscale a tap interface (mac layer)? otherwise, bad news I think unless you can fake mdns somehow | 15:35:43 |
| @saiko:knifepoint.net | mdns needs broadcast support and pretty sure you only get that with a layer 2 tunnel | 15:37:08 |
| ghostbuster91 | yes, but gpt told me that I could have sth that would answer dns queries by translating them to mDNS | 15:38:31 |
| @saiko:knifepoint.net | at that point I would set up a normal dns server with a non-local. zone and use normal dns. I’m just making a somewhat educated guess here so I might be wrong but for this to work with mdns names I assume you need a modified mdns resolver on the client, or serve the local. zone via dns which is forbidden | 15:43:22 |
| ghostbuster91 | ok let me take a step back and explain my use-case. Maybe I did something wrong earlier.
I have headscale that has global dns configured that point to my adguard instance.
| 15:45:06 |
| ghostbuster91 | There I have manual entries xyz.mydomain that points to my serwer (by the vpn ip adderss) | 15:45:39 |
| ghostbuster91 | one of them is esphome.mydomain | 15:45:46 |
| ghostbuster91 | this works great until I want to explore one of the devices listed in esphome dashboard | 15:46:07 |
| ghostbuster91 | this devices advertise themselves by mDNS | 15:46:20 |
| ghostbuster91 | once I am on the vpn I can see the esphome dashboard by I cannot enter into any device | 15:46:43 |
| ghostbuster91 | * once I am on the vpn I can see the esphome dashboard by I cannot enter into any device's details | 15:46:51 |
| ghostbuster91 | * these devices advertise themselves by mDNS | 15:47:16 |
