# ownCloud Administrators Manual

# Uploading big files > 512MB (as set by default)

It’s useful to know limiting factors that make it impossible to exceed the values given by the ownCloud-system:

## Not outnumberable upload limits:

- < 2GB on 32Bit OS-architecture
- < 2GB with Server Version 4.5 or older
- < 2GB with IE6 - IE8
- < 4GB with IE9 - IE10

## Other recommendable preconditions:

- Make sure that the latest version of PHP (at least 5.4.9) is installed
- Disable user quota. This means: set the user quota of the account, you are currently logged in, to “unlimited”.

This is important, because you possibly could not watch otherwise whether the desired changes take effect.

## Enabling uploading big files

Configuring your webserver

ownCloud comes with a .htaccess - file which propagates all config to your webserver. To adapt those settings go to the ownCloud - Folder on your server and set the following two parameters inside the .htaccess file:

- `upload_max_filesize = 16G` (e.g., to stay consistent with the example value above)
- `post_max_size = 16G` (e.g., to stay consistent with the example value above)

If you don’t want to use the shipped .htaccess - file, outcomment those options there and edit them in your global php.ini file:

You can easily learn the loaded configuration file by saving `<?php phpinfo(); ?>` code piece into a php file and calling it with your browser. Then look for the Loaded Configuration File value.

Alternatively:

- Under Debian or SUSE and their derivatives this file lies at /etc/php5/apache2/php.ini
- On Windows, you can find this file within C:/Program Files (x86)/PHP/PHP.ini

Set the following two parameters inside the php.ini to the same value as chosen inside the admin-section one step before:

- `upload_max_filesize = 16G` (e.g., to stay consistent with the example value above)
- `post_max_size = 16G` (e.g., to stay consistent with the example value above)

Output Buffering must be turned off in `.htaccess` or `php.ini`, or PHP will return memory-related errors.

- `output_buffering = 0`

These client configurations have been proven by testing maximum file sizes of 16 GB:

- Linux 32 Bit: Ubuntu, Firefox => 16GB
- Windows 8 64 Bit: Google Chrome => 8GB

Note: You will need a minimum of 16GB (e.g, to stay consistent with the example value above), in your upload_tmp_dir. Normally this points to /tmp. If your /tmp has not enough space, you can change the value of upload_tmp_dir in your php.ini