Ravi Sir's Cards › AWS
Troubleshooting order
What is a VPC: your own private network inside one AWS Region, example ThreeTierVpc 10.0.0.0/16.
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What this card says
Why do we need it?
Calm, one step at a time.
What is it?
What changed? Read logs.
How to do it
CPU, memory, disk, network.
Example
Last errors.
journalctl -p err -b