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Hello Gary,
The causes can be multiple and it really depends on what type of services or applications you're running in your EC2 instance. If I take here some assumptions: you're running a web based application that runs in a web server like apache or nginx or other, which means that for some reason those services cannot reach the application (e.g. PHP application).
Please consider provide more details on which type of workload/services or applications you're running in your EC2.
Thanks, Luis
Thanks Luis,
We've solved the issue now.
My app service was down. Also apache was causing an issue.
We ran these commands:
sudo service apache2 stop
sudo systemctl restart nginx
rails s -d
It was frustrating as the error occurred following AWS maintenance work and they weren't keen to help solve the issue.
But, again, thanks for trying to help.
Gary
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AWS 공식업데이트됨 3달 전
Great and sorry to hear that - it looks like that apache2 overlaps with nginx and the most likely raison is that they use the same service ports (80 HTTP, 443 HTTPS). I would recommend to, if apache is not used at all, to remove it from your instance.