Ravi Sir's Cards › AWS
--add-port vs --permanent
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
Firewall
--add-port
Runtime only.
--permanent
Saved to disk.
Key points
Gone after reload.
Needs --reload.
Example
firewall-cmd --add-port=82/tcp
Use when
Testing.
Real config.