AWS - Architecture Best Practices
A security group rule is intended to allow HTTP traffic but is not working. What is a common error to check?
A security group rule is intended to allow HTTP traffic but is not working. What is a common error to check?
medium📝 Debug Q6 of 15
Step-by-Step Solution
Solution:
Step 1: Review security group rules for HTTP
HTTP uses port 80; incorrect port blocks traffic.Step 2: Identify common misconfiguration
Using wrong port number is a frequent cause of failure.Final Answer:
The rule uses the wrong port number -> Option CQuick Check:
Security group HTTP rule = Correct port 80 [OK]
Quick Trick: Check port numbers carefully in security rules [OK]
Common Mistakes:
- Confusing deny with allow rules
- Ignoring instance state
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