# Using a custom logback.xml for the sandbox

**URL:** <https://forum.canton.network/t/using-a-custom-logback-xml-for-the-sandbox/154>\
**Category:** App Development\
**Created:** [April 16, 2020, 12:20pm UTC](https://forum.canton.network/t/using-a-custom-logback-xml-for-the-sandbox/154 "2020-04-16T12:20:07Z")\
**Posts on this page:** 1\
**Showing post:** 7

<div class="post-metadata">

**Author:** ![Judy\_Wu](https://yyz2.discourse-cdn.com/flex034/user_avatar/forum.canton.network/judy_wu/32/3536_2.png) [@Judy\_Wu](https://forum.canton.network/u/Judy_Wu)\
**Post date:** [July 16, 2024, 2:07am UTC](https://forum.canton.network/t/using-a-custom-logback-xml-for-the-sandbox/154/7 "2024-07-16T02:07:47Z")

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As discussed with canton team offline,  
We can use

```haskell
JAVA_TOOL_OPTIONS="-Dlogback.configurationFile=<my logback file>" daml sandbox

```

or

```haskell
_JAVA_OPTIONS="-Dlogback.configurationFile=<my logback file>" daml sandbox

```

Thanks @Bas_van_Gijzel @samuel-williams-da1 and @Joao_Sa_Sousa for the fast reponse.

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