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Connecting to Linux

Learn how to use OneIQ Pulse to discover Linux hosts

Written by Omega Team

Overview

OneIQ Pulse for Datacenter supports collecting configuration and performance data from Linux hosts. Virtual machines running Linux should be discovered through the underlying platform.

The following Linux versions are supported:

  • CentOS 4 - 8.0

  • Debian 3.1 - 12

  • Fedora 6 - 29

  • Novell SUSE Linux Enterprise 10 - 12

  • openSUSE 10.2 - 42.2

  • Oracle Linux 4.5 - 7.3

  • Red Hat Enterprise Linux 4 - 10.1

  • Ubuntu 6.06 - 20.04

OneIQ Pulse supports data collection from native and LVM2 volumes. Btrfs (B-tree file system) is not supported.

Prerequisites

  • Outbound Internet connectivity on port 443 (SSL) to OneIQ

  • OneIQ Pulse supports Windows Server 2016 or later, and Windows 10 or 11. A dedicated computer is recommended but not required

Machines

Without Network Flows

With Network Flows

Up to 5,000

2 vCPUs, 4 GB memory

4 vCPUs, 8 GB memory

5,000–10,000

4 vCPUs, 8 GB memory

8 vCPUs, 16 GB memory

NB: For environments larger than 10,000 machines, contact our team.

Permissions

  • root or sudo level access

  • Recursive read access to/dev, /etc and /proc folders

Network

  • Port 22 must be open

  • SSH2 connections are supported

  • A network path must exist between target systems and OneIQ Pulse.

During discovery, machines supporting SSH may appear as target systems running Linux. Unless these systems are running a standard release of one of the above operating systems, OneIQ Pulse will not be able to inventory them and should be excluded.

High Availability cluster nodes support

To profile High Availability cluster nodes, add HA-aware Linux nodes using an external IP address, rather than the interface used for cluster communication.

OneIQ Pulse Windows Services

OneIQ Pulse is designed to run under built-in Windows accounts, which are set automatically during installation:

  • OneIQ Pulse Service runs as Network Service

  • OneIQ Deputy Service runs as Local System

We recommend keeping these default accounts. OneIQ Pulse has not been validated with other service accounts, so changing them after installation may affect how it runs. If your organization requires a specific service account, please contact OneIQ Support to discuss your requirements.

OneIQ Pulse connects to your infrastructure using the credentials you enter for each target platform, so no additional service account is needed for discovery.

Discover Linux hosts

Open the OneIQ Pulse console and follow the steps below:

  1. Select the Linux platform

  2. Copy the connection key to the clipboard or save it. Then select Download OneIQ Pulse for Datacenter to download the OneIQ Pulse executable.

  3. Once you’ve downloaded the OneIQ Pulse binary to a Windows computer in your environment, run the executable. Open the OneIQ Pulse console and follow the steps below.

  4. In the Select Discovery Target menu, choose Linux Group
    ​

  6. Enter the following information.

    1. Group name

    2. Username and Password for all hosts in the group

    3. Specify IPs or hostnames in the Endpoint addresses table or import them in a CSV file.

  7. Click Create to initiate the discovery of Linux hosts in the group.
    ​

  9. Upon successful discovery, a new Linux Group tile will appear in the Dashboard with the following information:

  • Hostname or IP address

  • Username

  • Status

CSV Format

Specify hostnames and IPs, one per line. For example:

192.168.1.63
192.168.1.72
192.168.1.81
host01.domain

What's next?

Use OneIQ Pulse to discover other supported datacenter platforms and collect network flows to identify dependencies.

Cloud-native platforms inside the datacenter can be connected using the following OneIQ Pulse connectors:

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