I was wondering whether any answers in the following link would be most beneficial for setting up alerts to email me when a user logs in via SSH to my Ubuntu 20.04 server.
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One of the most straightforward ways would be to put the following in
In case that you are not receiving the emails, you can follow the steps here on how to setup
ssmtpwith SMTP authentication:
However this is not a bulletproof solution, what I would recommend is to follow the steps here on how to harden your OpenSSH service here:
Hope that this helps!