> For the complete documentation index, see [llms.txt](https://learn.capstorm.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://learn.capstorm.com/frequently-asked-questions/how-does-copystorm-work/can-i-use-apaches-log4j-or-log4j2.md).

# Can I Use Apache's log4j2?

Yes you can — CopyStorm supports log4j2. This article contains the instructions you will need.

## Using log4j2

CopyStorm comes packaged with log4j2 — configuring configuring CopyStorm to use it is a two-step process:

* Select the “Use Apache Logging” option on the [Logging](/reference/configuration-tab/logging.md) configuration section of CopyStorm’s Configuration tab.
  * When checked, CopyStorm will use the Apache Commons Logging system rather than the default.
* Edit the log4j2.properties file in the “lib” subdirectory of the CopyStorm installation to match your logging preferences.