Ravi Sir's Cards › AWS
Who listens on a port?
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
What it is
List listeners.
ss -tlnp
Why it matters
Filter one port.
ss -tlnp | grep :443
How / example
ss replaces netstat.