Website Down - Error 521 - MariaDB is not running

[vibhubajaj624d]

Hello 

I am running Magento 2.4.3 on Debian Linux VM. Suddenly, my website is down with error 503. I found out that more disk space and memory is required. 

After upgrading VM with double memory and disk space, I am getting error 521 web server down. 

On checking Apache log, it shows following errors 

[Mon Jan 10 09:08:13.364341 2022] [core: error] [pid 4368: tid 140527437379328] [client

[Mon Jan 10 09:08:13.364341 2022] [core:error] [pid 4368:tid 140527437379328] 
[client **ip_address**:34926] AH00126: Invalid URI in request 'bin/sh' 'POST 
/cgi-bin/.%2e/.%2e/.%2e/.%2e/bin/sh HTTP/1.1'
 [Mon Jan 10 21:03:41.071801 2022] [authz_core:error] [pid 4369:tid 
140527898978048] [client **ip_address**:33340] AH01630: client denied by server 
configuration: 
Press [Enter] to continue:
/opt/bitnami/magento/vendor/phpunit/phpunit/src/Util/PHP/eval-stdin.php
 [Mon Jan 10 21:26:06.307524 2022] [authz_core:error] [pid 5913:tid 
140526657414912] [client **ip_address**:40196] AH01630: client denied by server 
configuration: 
/opt/bitnami/magento/vendor/phpunit/phpunit/src/Util/PHP/eval-stdin.php

Please help correct these error and get back store online.

Thanks

Vibhu

[LitCommerce Expert]

You can try to start the services again but I think you will continue with the problem

Copy

sudo gonit
sudo gonit start
sudo /opt/bitnami/ctlscript.sh start

for file in

`find /opt/bitnami/scripts/ -name start.sh`; do sudo $file; done

If the database can’t be started, please contact the MariaDB developers to know more about how to solve the issue you are running into. However, we will also keep this ticket open in this forum in case any Bitnami user ran into the same issue recently.