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Home Assistant in Proxmox, local dns not working (lemmy.ml)

submitted 1 year ago* (last edited 1 year ago) by WbrJr@lemmy.ml to c/selfhosted@lemmy.world

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Hi there, I just installed Proxmox on my home server and like the idea a lot, but there is a noticable learning curve. I used this wonderful website and the provided link for home assistant os.

Usually home assistant is available at homeassistant.local without any configuration, i think its called mdns? But on my setup, homeassistant.local does not work for me, on any device, but the ip does.

So i suspect some settings in the proxmox firewall stops the ha vm mdns service from creating an entry in my router (fritzbox). I could not find any useful information about this though, and AI gave me the usual not quite helpful advice.

I hope you have some tips what i can check. Thanks a lot!

ps: I want to host caddy as a reverse proxy on the server some day. Does it make more sense to host a dns server as well and use caddy to forward to the ip?

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[–] klangcola@reddthat.com 0 points 1 year ago (2 children)

Hard to say without knowing which method you used to install HomeAssistant.

But I never found mdns .local addresses to be very reliable. They work 80-90% of the time, but the remaining 10-20% are a hassle.

Instead I'd recommend you install PiHole (in a docker container is easiest). PiHole is a DNS server intended for network-level ad-blocking. But it also have a handy feature of defining local DNS entries, so you can have HomeAssistant.myhome or HomeAssistant.whatever (.local should not be used with PiHole local DNS because .local is meant for mdns)

[–] WbrJr@lemmy.ml 0 points 1 year ago (1 children)

Thanks for the advice, i was thinking about it anyways :) i used the proxmox ve helper scripts: https://tteck.github.io/Proxmox/ to install it

[–] Oisteink@feddit.nl 1 points 1 year ago

Multicast DNS uses multicasting (surprise!) so keep your devices on the same network and it just works. Docker is not very multicast friendly but lxc or a vm should have no issues.