Solutions for Discuz3.4 large attachments that cannot be downloaded

This tutorial is only for the nginx environment. nginx can be configured as follows to solve this problem:

Nginx has good support for sendfile, and X3.4 also supports sending attachments to customers through sendfile. For resource download forums, it can significantly reduce the resource consumption of PHP to read attachments.

1. First check whether there is a sendfile off configuration in Nginx's configuration file. If there is, change the sendfile to on.

2. Open the forum configuration file config/config_global.php,

Find the following code:

$_config['download']['xsendfile']['type'] =0

Change 0 in the above code to 1. Then find the following code:

$_config['download']['xsendfile']['dir'] = '/down/';

Make corresponding modifications according to the directory where the forum is located:

If the forum is placed in the root directory, change/down/to/data/attachment/forum/

If the forum is placed in the bbs directory, change/down/to/bbs/data/attachment/forum/

And so on.