this post was submitted on 23 Jun 2024
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Home Assistant is open source home automation that puts local control and privacy first. Powered by a worldwide community of tinkerers and DIY enthusiasts. Perfect to run on a Raspberry Pi or a local server. Available for free at home-assistant.io

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How do I get phone notifications from my server while I'm not connected to my home network? (lemm.ee)
submitted 4 months ago by rambos@lemm.ee to c/homeassistant@lemmy.world
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Hey guys. Im running Home Assistant in docker container for few years and I'm super happy with it. The only way I access my server when not home is wireguard VPN. I noticed that I'm still receiving notifications even when not connected to VPN. I wonder how is that possible?

I don't have sub for HA Cloud or Nabu Casa. I also don't own a domain, using duckdns for wireguard connection and reverse proxy (npm). I thought I have 100% local setup, but I guess there is a Google or HA server in between. I don't want to disable the feature, I just want to know where is my data being sent

Thx

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[–] dan@upvote.au 25 points 4 months ago* (last edited 4 months ago) (4 children)

Notifications go through Google Firebase servers. This is documented here: https://companion.home-assistant.io/docs/notifications/notification-details/. Your HA server sends the notification to Google, which then sends it to your phone. They don't store the notification they just relay it.

Most mobile apps do something like this. One reason is to improve battery life - your phone can have a single connection to a Google server instead of every app needing its own separate connection.

There used to be a way to use local notifications (meaning you have to be on the same network, either locally or via a VPN), but I can't find the setting any more so maybe it's gone now. (edit: this is still possible)

[–] comradegreetingcard@lemmy.ml 12 points 4 months ago* (last edited 4 months ago) (1 children)

Under the Companion app settings, select your server, then persistent connection

https://companion.home-assistant.io/docs/notifications/notification-local/

[–] dan@upvote.au 9 points 4 months ago

That's what I was thinking of! It's not in the settings section I'd expect it to be in (notifications) so I thought it wasn't doable any more.

[–] rambos@lemm.ee 3 points 4 months ago

Thank you. It makes sense now

[–] GreatAlbatross@feddit.uk 2 points 4 months ago (1 children)

It definitely threw me the first time I was out of the house.
I decided the best solution was just to limit alerts to non-sensitive things.
While I'm generally very big on privacy, I really don't give a monkeys if Apple/Google is relaying a message that says "Cat in garden!"

[–] dan@upvote.au 2 points 4 months ago

You can enable a persistent connection to get alerts directly without relaying them through Google, but then you need to have a connection to your Home Assistant server all the time (eg by using a VPN or by exposing it publicly)

[–] stepan@lemmy.cafe 12 points 4 months ago* (last edited 4 months ago) (1 children)

https://ntfy.sh should do the trick

https://docs.ntfy.sh/examples/#home-assistant

[–] dan@upvote.au 11 points 4 months ago* (last edited 4 months ago) (1 children)

There's a few comments like this in this thread, from people that I guess didn't actually read the post :)

They weren't asking how to do it; they were asking why it works out-of-the-box with the standard Home Assistant notifications.

You don't need ntfy; the standard Home Assistant app notifications work anywhere since they route via Google Firebase.

[–] stepan@lemmy.cafe 4 points 4 months ago

Oh, you're right

[–] d4f0@lemmy.world 9 points 4 months ago

You can use telegram integration to do that. Link.

[–] solidgrue@lemmy.world 6 points 4 months ago* (last edited 4 months ago)

I don't know this for sure, but if you installed the mobile companion app thru the Store for your platform, then the integration is probably using its push API to reach your device remotely.

I'm >90% sure notification workflows find me even when I am remote and untethered from home when I notify the app on my mobile devices.

[–] magguzu@lemmy.ml 5 points 4 months ago

I'm lazy and use a Discord webhook to a special channel.

[–] ALERT@sh.itjust.works 4 points 4 months ago

HA mobile application opens up a notify service that I use to send notifications specifically on my mobile device HA application.

[–] Treczoks@lemmy.world 1 points 4 months ago

There are GSM modems that can be used by the server to send an SMS. I nearly bought one when it was cheap, but noticed just in time that the GSM level of that device was 3, which is no longer available here. And it needs a valid Sim card to work.

[–] Cyber@feddit.uk 1 points 4 months ago

Just to add... if you don't want this, the minimal version of the HA app doesn't use 3rd party systems for notifications (you'd need to setup something yourself), so if this is a problem for you, there's also that option..

Just sayin'...

[–] yournamehere@lemm.ee -1 points 4 months ago

google. eeeww.