Apache server throw me 502 error when I try to access site with Public IP

Question

I have a little strange case.

I configured two servers in AWS: Develop and QA, the two with Ubuntu 16.04, Apache 2 and PHP 7.0. I created a website en Develop, and configured its VirtualHost file. So, in Develop I edit its /etc/hosts file to point to itself:

127.0.0.1 site.test.com

And, in QA, I edit its /etc/hosts file to poinut to Develop private ip.

172.x.x.x site.test.com

And, if I test with elinks in Develop and QA, I can acces to the site without problem in both cases.

Now, in my local Windows computer, if I put the Public IP from Develop Server in mi chrome, it shows me the Apache default page. You know, that page with the text "It works! This is the default welcome page used to test the correct operation of the Apache2..."

So, I edited my local hosts files from my computer, pointing my site to Develop Public IP:

x.x.x.x site.test.com

But, when I tried to access site.test.com in my chrome, it thow me a HTTP ERROR 502.

I can acces to Develop server by SSH by its public ip, and I can see the Apache default page, but I can´t see the sites I configured in it. But, internally between the two servers in AWS, I can.

What I am doing wrong? Did I misunderstand something?

Would it be a problem if you also posted your virtual host file? It would certainly help identifying the issue. — Zip, Oct 10 '17 at 01:21
You say that you can access them internally in AWS, is that when using the private ip? Does it work with the public ip internally? — Bazze, Oct 11 '17 at 21:03

score 0 · Answer 1 · answered Oct 09 '17 at 17:55

0

A 502 error will be logged with more specific information in your apache error log. Perhaps looking at it will provide some relevant information that will help you figure this out.

answered Oct 09 '17 at 17:55

user9517

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I looked in **/var/log/apache2/error.log** but nothing is logged when I try to access to the site. – Eliacim DAVILA - CENSERE Oct 09 '17 at 17:58
Why don't you configure your apache to provide logs then. – user9517 Oct 09 '17 at 18:05
Apache is already configured to log error, I even put it on **trace8** level to see if it showed something, but nothing. – Eliacim DAVILA - CENSERE Oct 09 '17 at 18:10
Then there is something wrong with your logging. trace8 will generate lots of information. 5XX errors should also be logged. – user9517 Oct 10 '17 at 07:20

Apache server throw me 502 error when I try to access site with Public IP

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