Ravi Sir's Cards › AWS
Hardening checklist
What is a VPC: your own private network inside one AWS Region, example ThreeTierVpc 10.0.0.0/16.
Read card text
What this card says
Why do we need it?
Keys only SSH.
PasswordAuthentication no
What is it?
No root login.
PermitRootLogin no
How to do it
Tight firewall.
firewall-cmd --list-all
Example
SELinux enforcing.
getenforce