---
title: Using the lsof Command
description: Use the ls of command to return active TCP connections and can be installed on Solaris and AIX target machines.
locale: en-US
canonical_url: https://www.servicenow.com/docs/r/australia/it-operations-management/itom-visibility/t\_UsingTheLsofCommand.html
release: australia
product: ITOM Visibility
classification: itom-visibility
topic_type: task
last_updated: "2026-03-12"
reading_time_minutes: 1
breadcrumb: [Application Mapping for UNIX, Software discovery, Data collected by ITOM Visibility, ITOM Visibility reference, ITOM Visibility, IT Operations Management]
---

# Using the lsof Command

Use the ls of command to return active TCP connections and can be installed on Solaris and AIX target machines.

## Before you begin

Role required: admin

## Procedure

1.  Install `lsof` on the Solaris and AIX machines on which you want to gather application relationship data.

2.  In the instance, navigate to **Discovery Definition** > **CI Classification** > **UNIX**.

3.  Select **Solaris** from the list.

4.  In the UNIX Classification form for Solaris, select the **Triggers probes** related list, and then select **Edit**.

5.  Move **Linux - Active Connections** from the Collections list to the Triggers probe List.

    This probe is configured to use `lsof`.

6.  Select **Save**.

7.  Repeat this procedure for the AIX classification probe.


**Parent Topic:**[Application Mapping for UNIX discovery](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/it-operations-management/itom-visibility/c_DiscoveryAppMapForUNIX.md)