Ravi Sir's Cards › AWS
chmod numbers
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?
Control who reads, writes, runs.
What is it?
r=4 w=2 x=1, add them up.
How to do it
Folders need x to enter.
Example
Private SSH key.
chmod 600 key.pem