reverse proxy error | 403

aaP_ti3

Hello support, I sent an e-mail to ken@aapanel.com on last 08/22/2022, but I did not received the answer, can you help me please with the error bellow, we have an domain and we are using reverse proxy, the site in general is workink properly, only we try to export an PDF report on it, we received the error attached:

Can you please analyze and reply for me?

aaPanel_Kern

aaP_ti3
System error: net: : ERR_FILE_NOT_FOUND
It prompts that there is no file, please check whether the destination server has a file?
Haven't received your email at the same time

aaP_ti3

aaPanel_Kern Yes, the file exist, when I try export the pdf report withou the reverse proxy, it works normaly, I just forward the e-mail with the logs again, can you please check if you received?

aaPanel_Kern

aaP_ti3
403: The permission is incorrect, please check whether all the directories of the site are 755/www, and whether the files are 644/www?
no email

aaP_ti3

aaPanel_Kern Hello, the permissions already this way, can you kindly send your e-mail, skype or teams so we can chat to solve it.

page utilyzing aapanel reverse proxy:

page without aapanel:

Tks

aaPanel_Kern

aaP_ti3
Please check the site's access log and error log, and troubleshoot according to the site's log.

aaP_ti3

aaPanel_Kern Hello, the error is the same showed in chrome:

187.86.213.103 - - [29/Aug/2022:11:04:01 -0300] ＂POST /opmon/seagull/www/index.php/opexporter/action/gencustomreport HTTP/2.0＂ 403 734 ＂https://multicare.opmonweb.com.br/opmon/seagull/modules/opreports/ng/app.php?＂＂Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.0.0 Safari/537.36＂

When I try access the site without the reverse proxy, I do not have this error.

aaPanel_Kern

aaP_ti3
Hello, please check if the reverse proxy is set correctly? A reverse proxy forwards all requests to the backend server for processing.

aaP_ti3

Hello, the reverse proxy and the webserver are the same internal network, we redirect in the reverse proxy to the local webserver, is there any configuration we must change to solve it?

aaPanel_Kern

aaP_ti3
Is there anything wrong with checking the backend server? Are there restrictions?

aaP_ti3

aaPanel_Kern Hello, no, when we use the backend server directly, we do not have any issues.
Only behind the reverse proxy this specific export page.

aaPanel_Kern

aaP_ti3
403 does not have permission to access, it is recommended to check the configuration of the reverse proxy website and the configuration of the backend server website. Does the website of the backend server support reverse proxy?

horasjey

Please
suggest me to config nginx reverse proxy with apahce backend for wordpress application

aaPanel_Kern

horasjey
Hello, please directly fill in the target url you need to proxy

horasjey

aaPanel_Kern
What is the cache function on the proxy?
it's not good if it's enabled for wordress applications :

aaPanel_Kern

horasjey
this depends on your needs

aaPanel_Kern

horasjey
hi,
Check whether there are settings for url rewirte and redirection, if necessary, delete and then add reverse proxy

horasjey

aaPanel_Kern
yes solvet,
but now i have new problem :-(

aaPanel_Kern

horasjey
Is a reverse proxy set up? If set, please check whether the backend program is normal?
If not, please check whether you need to set url rewirte
Check site logs and error logs

horasjey

aaPanel_Kern
it seems because my backend server response is [apache] http/1.0
so the response header client becomes http://

how do I make my backend response to http/2.0 so that the response header becomes https://

horasjey

aaPanel_Kern
this respound log my reverse proxsy ngix