99c4e02ecf
Name it instead "topics" so it won't be strange if some topics included "exercises" directory.
22 lines
676 B
Markdown
22 lines
676 B
Markdown
## No Application :'(
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### Objectives
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Explain what might be possible reasons for the following issues:
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1. Getting "time out" when trying to reach an application running on EC2 instance
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2. Getting "connection refused" error
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### Solution
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1. 'Time out' Can be due to one of the following:
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* Security group doesn't allow access
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* No host (yes, I know. Not the first thing to check and yet...)
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* Operating system firewall blocking traffic
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2. 'Connection refused' can happen due to one of the following:
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* Application didn't launch properly or has some issue (doesn't listens on the designated port)
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* Firewall replied with a reject instead of dropping the packets
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