Ravi Sir's Cards › AWS
-L vs -R?
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
-L: local port to remote target.
Why it matters
-R: remote port back to you.
How / example
Local tunnel.
ssh -N -L 5433:db:5432 bastion