Telegram Notifications from Ubuntu Server - all SSH Logins
Recently I added to my home lab, an Ubuntu Server with a Hardened Repository for Veeam Backup, you can find more info here (Spanish).Now, the thing is, I want to be able to get notified if some user logs into the server via ssh, as a extra control, since I disable the SSH service when I dont use it.Also the idea came, to be able to get notified from other applications via telegram, so wasn't a crazy idea at the end.You can easily find how to create a Bot, and how to get your ID, so Im not going to dive into that, from previous entries, or the internet.So first, once we have created and activated our bot and user ID, lets go a create our Telegram messaging program, in our home, lets create a file like this:nano send-over-telegram.sh#!/bin/bashGROUP_ID=BOT_TOKEN=# this 3 checks (if) are not necessary but should be convenientif [ "$1" == "-h" ]; then echo "Usage: `basename $0` \"text message\"" exit 0fiif [ -z "$1" ] then echo "Add message text as second arguments" exit 0fiif [ "
