# Hidden options Fix this page

Sunday, November 16, 2014 9:22 PM

## Be careful

Attention, this part is for advanced users only. We'll edit an important file of wallabag, `inc/poche/config.inc.php`, please make a backup of this file before changes.
If you make a mistake while editing a wallabag file, your application may be broken.

This file is created when wallabag is installed.
Please first install wallabag, make a backup of this file and open it with Sublime Text your favorite editor.

In this file are defined some parameters that you can't change on the wallabag configuration page.

## Advanced options

Each parameter is defined like this:

    @define ('PARAMETER_NAME', 'Parameter value');

For each line, you can only change `Parameter value` part.

TODO explain all the following parameters

Here are all the parameters you can change:

- `HTTP_PORT` (default value is `80`): Expected value: a digit.
- `SSL_PORT` (default value is `443`): Expected value: a digit.
- `DEBUG_POCHE` (default value is `FALSE`): Expected values: `TRUE` or `FALSE`.
- `DOWNLOAD_PICTURES` (default value is `FALSE`): Expected values: `TRUE` or `FALSE`.
- `SHARE_TWITTER` (default value is `TRUE`): Expected values: `TRUE` or `FALSE`.
- `SHARE_MAIL` (par défaut, `TRUE`): Expected values: `TRUE` or `FALSE`.
- `SHARE_SHAARLI` (default value is `FALSE`): Expected values: `TRUE` or `FALSE`.
- `SHAARLI_URL` (default value is `'http://myshaarliurl.com'`): Expected value: your Shaarli URL.
- `FLATTR` (default value is `TRUE`): Expected values: `TRUE` or `FALSE`.
- `SHOW_PRINTLINK` (default value is `'1'`): Expected values: `'0'` to disable, `'1'` to enable.
- `SHOW_READPERCENT` (default value is `'1'`): `'0'` to disable, `'1'` to enable.
- `PAGINATION` (default value is `'12'`): Expected value: a digit.