Selfhosted

Uptime Kuma has a number of notification options.

I just had to set one up because the Oracle free tier is hot garbage and needs resetting every day or two.

just going to put this here https://github.com/awesome-selfhosted/awesome-selfhosted?tab=readme-ov-file#monitoring--status-pages

Ntfy can send/receive notifications to/from the phone. You can selfhost it or use a public instance. For the healthcheck app, consider Uptime Kuma as it has ntfy integration. But a simple cron script that monitors + cURLing ntfy when it fails could also be used.

I recommend the free tier of healthchecks.io for this. I have all of my in-depth monitoring selfhosted, but use this as a general "is it at least online" check that tells me on multiple platforms if it isnt.

I have no VPS but a home server and Uptime Kuma can’t help me if it’s down. So I just set up healthchecks.io + Pushover via a cron job that runs on the server and I can confirm that it works! Tested yesterday after a citywide blackout 😵‍💫

https://f-droid.org/packages/com.manimarank.websitemonitor

There's a lot of options. There's countless paid services that offer exactly that.

If you wanna build something yourself for free, you could probably set up a site accessible via HTTP on your server and create a script on your phone that pings it every 30 seconds or so. Afaik, termux has a termux-notification function that lets you send a notification.

Codewise, it would look somewhere like this I think:

#!/usr/bin/env bash  

# Config 
NOTIFY_TITLE="Server Alert"  
NOTIFY_MESSAGE="Server returned a non‑200 status."  

HOST="funnysite.com"  
PORT=8080  
PATH="/healtcheck"  

URL="http://${HOST}:${PORT}${PATH}"  
# Config  

HTTP_CODE=$(curl -s -o /dev/null -w "%{http_code}" "$URL")  

if [[ "$HTTP_CODE" != "200" ]]; then  
    termux-notification -t "$NOTIFY_TITLE" -c "$NOTIFY_MESSAGE $HOST:$PORT"  
fi  

exit 0  

Afaik, termux doesn't ship the cron daemon, but you can install cronie or use an external task scheduler. There, just set to run the script every 60 seconds or so. Whatever you need.

I haven't tested anything of this, but in my head, it sounds like it should work fine.

Cron job and termux-notify

Uptime Kuma and a notification provider.
I use telegram because it has an easy way to set up bots.

Set up Uptime Kuma on the VPS to monitor services there. Uptime Kuma can send you a notification if any of them become unresponsive.

Then use Healthchecks.io to monitor the VPS itself and Uptime Kuma.

You can set up to 20 monitors on the free tier with healthchecks.io.

Its a push monitor, so if the VPS/Uptime Kuma doesnt reach out to say its alive within the designated time interval you'll get a notification, like a sort of dead man switch.

Theres a load of notification options for both healthchecks and Uptime Kuma including email, discord, ntfy, etc, etc.

This way you have no need for a seperate self hosted server, and you get healthchecks on yo healthchecks.

Uptime Kuma and a VOIP subscription that lets you send webhooks.

I run nagios and use pushover, over kill for what I monitor but it's what I know

Acronyms, initialisms, abbreviations, contractions, and other phrases which expand to something larger, that I've seen in this thread:

3 acronyms in this thread; the most compressed thread commented on today has 2 acronyms.

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