> For the complete documentation index, see [llms.txt](https://docs.datarhei.com/restreamer/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.datarhei.com/restreamer/knowledge-base/manual/system-settings/logging.md).
# Logging
{% hint style="info" %}
These settings are only visible in expert mode.
{% endhint %}
{% hint style="info" %}
Locked settings that have been set with environment variables at startup are marked with ENV. Disable or adjust environment variables unlocks the settings.
{% endhint %}
### 2 Copy
Copies the system log to the clipboard.
### 3 Logging level
Different levels of logging. There are five different levels.
* Silent
* Error
* Warn: Errors and warning messages
* Info: Errors, warnings, and information messages
* Errors, warnings, information messages, and debug information
### 4 Log lines
The number of log lines.
## FFmpeg
### 5 Log lines
Number of most recent log lines to keep for each process.
### 6 Log history
Number of most recent log lines to keep for each process.+
## Learn more
{% content-ref url="/pages/-MXb\_BFQq0tV8S0Onai7" %}
[Installing](/restreamer/installing/minimum-requirements.md)
{% endcontent-ref %}
{% content-ref url="/pages/5UuleQZ0OaxSy9HgMewO" %}
[What are environment variables?](/restreamer/knowledge-base/faq/what-are-environment-variables.md)
{% endcontent-ref %}
{% content-ref url="/pages/-MYd\_eWFK56LZQkA-iAN" %}
[User Guides](/restreamer/knowledge-base/user-guides.md)
{% endcontent-ref %}
---
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