Bad request 400

[programmertehamatech]

I would say it's time to make a ticket on this so we can take a look directly.

Good evening
I have a problem with WordPress
It is Bad Request
Your browser sent a request that this server could not understand.
Additionally, a 400 Bad Request error was encountered while trying to use an ErrorDocument to handle the request.

Occurs when downloading a plugin or template
Note that I own a VPS server and I do not know where the error came from

 

[cPRex]

Hey there! The first area to check for these types of issues is the server's Apache log at /etc/apache2/logs/error_log. If you watch that file while reproducing the error in the browser, I would expect more information to appear in the log.

 

[programmertehamatech]

Hey there! The first area to check for these types of issues is the server's Apache log at /etc/apache2/logs/error_log. If you watch that file while reproducing the error in the browser, I would expect more information to appear in the log.

[Thu Sep 28 08:13:05.259042 2023] [core:warn] [pid 467418] (101)Network is unreachable: AH00056: connect to listene>
The most frequent error in the file

 

[programmertehamatech]

Hey there! The first area to check for these types of issues is the server's Apache log at /etc/apache2/logs/error_log. If you watch that file while reproducing the error in the browser, I would expect more information to appear in the log.

There are a lot of records

[Thu Sep 28 10:01:43.791727 2023] [authz_core:error] [pid 502211] [client 40.77.167.136:0] AH01630: client denied b>
[Thu Sep 28 10:22:24.114249 2023] [security2:error] [pid 506196] [client 31.31.183.7:0] [client 31.31.183.7] ModSec>
[Thu Sep 28 10:22:24.114851 2023] [security2:error] [pid 506196] [client 31.31.183.7:0] [client 31.31.183.7] ModSec>
[Thu Sep 28 10:22:24.114876 2023] [proxy:error] [pid 506196] (20014)Internal error (specific information not available>
[Thu Sep 28 10:22:24.115200 2023] [security2:error] [pid 506196] [client 31.31.183.7:0] [client 31.31.183.7] ModSec>
[Thu Sep 28 10:22:24.115249 2023] [proxy_fcgi:error] [pid 506196] (20014)Internal error (specific information not a>
[Thu Sep 28 10:22:24.121905 2023] [security2:error] [pid 506196] [client 31.31.183.7:0] [client 31.31.183.7] ModSec>
[Thu Sep 28 10:22:24.122208 2023] [security2:error] [pid 506196] [client 31.31.183.7:0] [client 31.31.183.7] ModSec>

I did not understand exactly where my mistake was

 

[cPRex]

I would recommend running this command:

tail -f /etc/apache2/logs/error_log

and then reproducing the issue in a browser. That will let the log scroll in real-time while the issue happens. I would focus on the mod_security entries in the log as those would be most likely to be related to the issue.

 

[programmertehamatech]

I would recommend running this command:

tail -f /etc/apache2/logs/error_log

and then reproducing the issue in a browser. That will let the log scroll in real-time while the issue happens. I would focus on the mod_security entries in the log as those would be most likely to be related to the issue.

This is the error that appears

[Sun Oct 01 09:52:29.488234 2023] [security2:error] [pid 797797] [client 89.189.65.39:0] [client 89.189.65.39] ModSecurity: Multipart parsing error: Multipart: Failed to create file: /var/imunify360/tmp_modsec/20231001-095229-ZRkXLZ45T0QLYozdp5aRxQAAAAc-file-fT62IS [hostname "host.name.com"] [uri "/wp-admin/update.php"] [unique_id "ZRkXLZ45T0QLYozdp5aRxQAAAAc"], referer: Log In ‹ kia — WordPress
[Sun Oct 01 09:52:29.489007 2023] [security2:error] [pid 797797] [client 89.189.65.39:0] [client 89.189.65.39] ModSecurity: Failed to open temporary file for reading: /var/imunify360/tmp_modsec/20231001-095229-ZRkXLZ45T0QLYozdp5aRxQAAAAc-request_body-7zpInQ [hostname "host.name.com"] [uri "/wp-admin/update.php"] [unique_id "ZRkXLZ45T0QLYozdp5aRxQAAAAc"], referer: Log In ‹ kia — WordPress
[Sun Oct 01 09:52:29.489035 2023] [proxy:error] [pid 797797] (20014)Internal error (specific information not available): [client 89.189.65.39:0] AH01095: prefetch request body failed to 0.0.0.0:0 (httpd-UDS) from 194.163.150.133 (), referer: Log In ‹ kia — WordPress
[Sun Oct 01 09:52:29.489624 2023] [security2:error] [pid 797797] [client 89.189.65.39:0] [client 89.189.65.39] ModSecurity: Input filter: Error reading from temporary file: Bad file descriptor [hostname "host.name.com"] [uri "/index.php"] [unique_id "ZRkXLZ45T0QLYozdp5aRxQAAAAc"], referer: Log In ‹ kia — WordPress
[Sun Oct 01 09:52:29.489662 2023] [proxy_fcgi:error] [pid 797797] (20014)Internal error (specific information not available): [client 89.189.65.39:0] AH01075: Error dispatching request to : (reading input brigade), referer: Log In ‹ kia — WordPress
[Sun Oct 01 09:52:29.492661 2023] [security2:error] [pid 797797] [client 89.189.65.39:0] [client 89.189.65.39] ModSecurity: Audit log: Failed to open temporary file for reading: /var/imunify360/tmp_modsec/20231001-095229-ZRkXLZ45T0QLYozdp5aRxQAAAAc-request_body-7zpInQ [hostname "host.name.com"] [uri "/wp-admin/update.php"] [unique_id "ZRkXLZ45T0QLYozdp5aRxQAAAAc"], referer: Log In ‹ kia — WordPress
[Sun Oct 01 09:52:29.493171 2023] [security2:error] [pid 797797] [client 89.189.65.39:0] [client 89.189.65.39] ModSecurity: Input filter: Failed to delete temporary file: /var/imunify360/tmp_modsec/20231001-095229-ZRkXLZ45T0QLYozdp5aRxQAAAAc-request_body-7zpInQ [hostname "host.name.com"] [uri "/wp-admin/update.php"] [unique_id "ZRkXLZ45T0QLYozdp5aRxQAAAAc"], referer: Log In ‹ kia — WordPress

 

[cPRex]

Thanks for that information. When this happens, that usually means that you need to add write permissions to the /var/imunify360/tmp_modsec/ directory. Can you adjust the permissions on that directory and see if that resolves the issue?

 

[programmertehamatech]

ModSecurityThe problem has been solved and you have stopped

Thanks for that information. When this happens, that usually means that you need to add write permissions to the /var/imunify360/tmp_modsec/ directory. Can you adjust the permissions on that directory and see if that resolves the issue?

 

[programmertehamatech]

I would like to ask another question
How to change the IP of an account

 

[cPRex]

@programmertehamatech - it's best to keep threads limited to just one question, but you can do this through WHM >> Change Site's IP Address