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# Troubleshoot 413 - Request Entity Too Large

## Problem

 Certain actions such as uploading large files result in a `Request Entity Too Large` error message or response.

## Cause

 A `413 Request Entity Too Large` error occurs when a request made from a client is too large to be processed by the web server. If your web server is setting a particular HTTP request size limit, clients may come across a `413 Request Entity Too Large` response. An example request, that may cause this error would be if a client was trying to upload a large file to the server (e.g. a large media file).

## Resolution

 Depending on which web server you use, implement the necessary changes described below to configure your web server's maximum HTTP request size allowance.

 If you're still having trouble after following this guide, for more assistance please read: [Troubleshooting file upload issues](Troubleshoot+File+Upload+Issues)

### nginx

 The directive which determines what the allowable HTTP request size can be is `client_max_body_size`. This directive may already be defined in your `nginx.conf` file located at `/etc/nginx/nginx.conf`. However, if it isn't, you can add that directive in either an `http`, `server`, or `location` block and define a value.

```
server {
    client_max_body_size 100M;
    ...
}
```

 The default value for this directive is `1M (1 megabyte)`. If you do not wish to have a request size limit you can set the value to `0`.

 Once you have set your desired value, save your changes and reload Nginx by running the following command:

```
service nginx reload
```

### Apache

 The directive which determines what allowable HTTP request size can be is `LimitRequestBody`. The directive can be defined in your `http.conf` file.

```
LimitRequestBody 104857600
```

 The default value for this directive in Apache is `0`, however, you may set this value to whatever you like (the value is represented in `bytes`).

Once you are done making your changes, save the configuration file and reload Apache using the following command:

```
service apache2 reload
```