So there you sit in your comfy chair and drink your morning coffee, sun is shining and then suddenly boom
You put away your coffee and start investigating. What on earth is happening? Why is your CPU cores suddenly spiking so high? Are you under attack? One user or many users causing this? Where do you start investigating? What commands, tools or views do you use? Can we have a discussion where people share what they do in situations like this when it suddenly happens? Something like the top 3 CLI commands. Share your top 3 investigating steps.
You thought your firewall was tuned, didn't you