HTTP 500 error: What is the problem?

HTTP 500 error: What is the problem?

The HTTP status code provides information about whether a request is successful on the Internet, otherwise, what is the error. But reports of error messages are not always clear. This is especially true for “500 Internal Server Error“. This error message indicates an error occurred while communicating with the server and therefore was unable to call the requested page. Exactly what is it, but you do not learn. Fortunately, there are several ways to find the cause. We show the typical error sources and give tips on how to react when you get an HTTP 500 error.

What does internal server error mean?

With the status code, the web server for the Internet user’s browser (client) knows whether the request – that is, the call on the site – has been successful. If the browser receives status 200, it knows that everything is going well. The user does not receive this message, after all, the requested content appears instead. The situation is different for 400 and 500 codes. While previously pointed out errors with the client, then the server involved. Internal Server Error 500 is a collective status code for server error. So, at first sight, it is not clear where the real error lies. As the user you just heard: Server reported an unexpected error.

However, if the server has Microsoft Information Service (IIS) installed, the error code will be specified. The decimal location indicates more details of the cause of the error:

  • 500.0: A module or ISAPI failed.
  • 500.11: An application is being shut down on the server.
  • 500.12: An application is being restarted on the server.
  • 500.13: Web server is running at full capacity.
  • 500.15: Disallow direct requests to global.asax (optional).
  • 500.19: The configuration data is invalid.
  • 500.21: Unrecognized module.
  • 500.22: HTTP module configuration (in an ASP.NET Web application) does not apply in pipelined management mode.
  • 500.23: An HTTP processor configuration (in an ASP.NET Web application) does not apply in pipelined management mode.
  • 500.24: Configuration impersonation (for ASP.NET) can not be used in pipelined management mode.
  • 500,50: There was an error rewriting the message RQ_BEGIN_REQUEST.
  • 500.51: An error occurred while rewriting the message GL_PRE_BEGIN_REQUEST.
  • 500.52: An error occurred while rewriting the message RQ_SEND_RESPONSE.
  • 500.53: There was an error rewriting the message RQ_RELEASE_REQUEST_STATE.
  • 500.100: There was an error in the ASP tool.

What causes the HTTP 500 Error?

“Internal Server Error” may arise during the processing of web server requests. The status code of the collection includes everything that may have happened to the server not being scheduled and thus preventing the output of the site. Server error 500 may occur due to an error occurring in the web server configuration. Here is a selection of typical error sources:

  • Error: The permissions of the main files and folders are not set correctly.
  • PHP timeout: Script attempts to access external resources and experience timeout.
  • Error Code in .htaccess: The structure in the .htaccess file may be incorrect.
  • Error in syntax or code in CGI / Perl scripts: In some cases, scripts get corrupted. Especially the paths may be skewed.
  • PHP memory limit: A process runs out of memory and therefore cannot perform properly.

For WordPress sites or other content management systems, installing an incomplete or incompatible extension could be the cause: plug-ins and themes – especially of the party. Third – may affect the whole site.

This allows webmasters to troubleshoot Local Server 500 errors

Visitors to your site can no longer view content but only 500 server errors? As an operator, you should address the issue directly, because it not only makes visitors come to your site scared, even Google can lower you in the rankings. Before you take action as a webmaster, first check that your server is up and running. If not, you should contact your hosting provider promptly.

If there is an internal error, first check the log file: For Linux servers, the error message collection must be located at / var / log / httpd / error_log. It makes sense to reload the page to recreate the HTTP 500 Error and view the generated log file. This will help you find the source of the error quite quickly. Also review the changes you’ve made recently. In many cases, plug-ins are improperly programmed or incompatible, resulting in an error message.

This error may also occur if you do not set permissions on the important files correctly. There are generally three types of rights:

  • Read (r to read)
  • Write (w to write)
  • Execute (x to execute)

These authorizations can be assigned to three different types of users:

  • The owner of the file
  • User group
  • everyone else

The rights are indicated by the abbreviations r, w, and x or correspond to numeric values: 4 for reading, 2 for writing, and 1 for execution. They are added for each user type and are assigned one after another: rwxr-xr-x (rwx for owner, rx for group and rx for all others) or 755. This configuration (755) must be the default. If the permissions are set differently, errors can occur. You can change this with a command:

chmod 755 Dateiname
If this change does not change the issue, you can also share all permissions for each group for testing purposes:
chmod 777 Dateiname

Use this setting only to identify the problem. You have allowed any user to rewrite the file, which is understandable as a security risk.

Next, if your distribution of rights does not generate an error message, check that your script is working properly. Sometimes an error occurs because the script file has been moved, renamed, or deleted. Also, check the .htaccess file: Even syntax errors – though small, can generate an internal server error. The most common mistake is the wrong format of the .htaccess file. This must be in ASCII or ANSI format, not in Unicode. Therefore, write the file in a text editor such as Notepad, Notepad ++, or Hyper Text and not in a word processor such as Microsoft Word. To check if a file is responsible for an error, you can temporarily rename and reload the page. The server will not access .htaccess when loading web pages. If the error message does not appear, you can fix the file or create a new one.

Finally, timeout can lead to error messages. In this case, it is not a web server error at all, but rather a broken connection to an external source. Are the PHP scripts on your site set to access resources from other servers? Resources may no longer be available or server interfaces may be interrupted for another reason. One way to eliminate this source of error is to avoid making your site dependent on external resources. If you can not, you can increase the script’s schedule. In addition, it makes sense to implement efficient error handling, so errors in the PHP script can be more accurately disclosed.

Is memory overloaded? Memory limits determine how much memory can be used. If more RAM is needed than available, Internal Server Error may be the result. As a temporary solution, you can increase the limit. To do this, add a command to this form in php.ini:

memory_limit = 512M

In this example, you would set the available memory to 512 MB. However, keep in mind that your hosting provider will only grant you limited PHP scripts in the offer set. If you enter a higher value, the web server will ignore it. In addition, increasing the limit should only be a temporary solution: when your site is back up, you should find a reason for high RAM requirements. With high probability level, errors can be found in your site code.

If you can not find a solution by any method presented, you should contact your hosting provider. Previously, you could check the status of the server: Many hosting service providers give their server status through a status page called or informed to the user through the media. when a problem has arisen.

If the server issue is known, you need to be patient: you have no choice but to wait for the server’s IT staff to troubleshoot. But even if there is no problem with the server, contacting support may be helpful. Tell them what you did. So you can get help quickly.

Internet surfers should respond with HTTP 500 Error like?

As a visitor to a website, you can basically do little if you encounter an internal server error. The web host hosting the targeted site has an incorrect configuration. This means there are no errors in your computer’s settings or network connection. So, for you as an internet user, the simplest solution is usually to reload the page. First, it’s possible that the webmaster has fixed the problem. This is most likely, especially for large vendors. On the other hand, what happens is that you happen to want to access the content at an inconvenient time for the web server. If you have just caught up with the service restart, you will see the error message, although everything is going according to plan.