---
title: "Changing the maximum number of log files"
slug: "dpo-configure-diagnostic-logs-changing-the-maximum-number-of-log-files"
updated: 2026-10-27T20:13:12Z
published: 2026-10-27T20:13:12Z
canonical: "docs.onespan.com/dpo-configure-diagnostic-logs-changing-the-maximum-number-of-log-files"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.onespan.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Changing the maximum number of log files

By default, a maximum of 30 nnl.log and 5 nnlgateway.log files are kept before being overwritten.

1. If you are configuring nnl.log, search log4j2-nnl.xml for the RollingFile element pertaining to it. Otherwise, skip this step.

```plaintext
<RollingFile fileName="${sys:catalina.base}/logs/nnl.log"
```

1. To set the maximum number of log files to keep, find the following string in this section.

```plaintext
<DefaultRolloverStrategy
```

Change the max parameter, for example:

```plaintext
<DefaultRolloverStrategy max="12"/>
```