Running services, network usage, memory usage, bandwidth, disk I/O, successful logins, whether the thing is even alive, etc…
So far my only method has been “hope and pray”.
Running services, network usage, memory usage, bandwidth, disk I/O, successful logins, whether the thing is even alive, etc…
So far my only method has been “hope and pray”.
Setting up the newfangled security thing. TLS, DKIM, DMARC, SPF are the big ones over the years. Finding out you’ve been silently blackisted by a provider and hoping and praying they’ll answer your request to unblock. Managing your own spam filter.