Ravi Sir's Cards › AWS
502 behind nginx?
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
Is the app up?
systemctl status orders
Why it matters
SELinux proxy boolean.
setsebool -P httpd_can_network_connect on
How / example
Read error.log.