The “413 – Request Entity Too Large” error in Nginx occurs when a client tries to upload a file that is too large for Nginx to handle. This error can be solved by increasing the client_max_body_size directive in the Nginx configuration file. Here’s how:
- Open the Nginx configuration file:
sudo nano /etc/nginx/nginx.conf
- Find the
httpblock in the configuration file and add the following line:
client_max_body_size <size>;
Replace <size> with the maximum size of the upload in megabytes (MB). For example, if you want to allow uploads up to 100 MB, set <size> to 100m.
- Save the changes to the configuration file.
- Test the configuration:
$ sudo nginx -t
If the test is successful, you will see the following output:
nginx configuration file /etc/nginx/nginx.conf test is successful
- Reload Nginx:
$ sudo nginx -s reload
This will reload Nginx with the new configuration, and clients should now be able to upload files up to the size specified by the client_max_body_size directive.
Note that increasing the client_max_body_size directive may increase the risk of denial-of-service (DoS) attacks, so it’s important to set the value carefully based on your specific requirements and security needs.