One very important task of a Linux Administrator is to monitor your network closely to ensure everything is working fine and to identify potential issues that can later affect operations. Monitoring also helps you to identify the root cause of the issues and eliminate them before they affect operations. There are several tools available for network monitoring. One such tool is OpManager from ManageEngine. OpManager can monitor any network device including servers, switches, routers, printers, WLAN controllers, VMs, firewalls, etc. It covers nearly all of the aspects of network monitoring like host discovery, physical and virtual server monitoring, network devices monitoring, alerting, customizable Dashboards, etc.

Here at Ibmi Media, we shall look into the installation of ManageEngine OpManager on Ubuntu Linux System.

Steps to install ManageEngine OpManager on Ubuntu

1. You can download the OpManager installer from the ManageEngine official website. Or you can download the installer file for the OpManager through the command below:

$ wget https://www.manageengine.com/network-monitoring/29809517/ManageEngine_OpManager_64bit.bin

The downloaded installer file will be saved as ManageEngine_OpManager_64bit.bin.

2. Make the installer file executable through the command below:

$ sudo chmod u+x ManageEngine_OpManager_64bit.bin

If prompted, enter sudo password.

3. Now you can run the installer through the command below:

$ sudo ./ManageEngine_OpManager_64bit.bin

This will launch the ManageEngine OpManager installer. To continue, click Next.

Then it will show the terms of license agreement. Accept the license agreement by clicking Next.

Then fill out the following form to register for technical support. Then click Next.

Then it will show the default location where OpManager will be installed. You can also change the default location for the OpManager installation by clicking the Choose button and browsing the preferred directory. Once done, click Next.

The default port used by the OpManager web server is 8060. You can alter the port number if you wish to run it on another port. Then click Next.

Then it will show the pre-installation summary for review. Click Install to proceed with the installation procedure.

Then the installation will be started and once finished, click Done to close the installer.

How to start OpManager ?

Start by navigating to the OpManager bin directory through the command:

$ cd /opt/ManageEngine/OpManager/bin

Then from the bin directory, run this command:

$ sudo ./StartOpManagerServer.sh

This process will take a while after which you will be shown the URL to connect to OpManager. The URL will be either http://hostname:8060 or http://ip-address:8060. Where hostname and ip-address is the name and IP address of the system where OpManager is installed and port number is the port for the OpManager web server that we specified during installation.

Now open this URL in a web browser which will open the following login page. Log in with the "admin" username and password .

Now you will see the OpManager default dashboard.

To stop OpManager, navigate to the OpManager bin directory:

$ cd /opt/ManageEngine/OpManager/bin

Then from the bin directory, run this command:

$ sudo ./ShutDownOpManager.sh

How to start OpManager as a Service ?

You can also start OpManager as a service. To do so, first, close the previous running instance (if any) using the Ctrl+c keyboard shortcut.

Then navigate to the OpManager bin directory through the command below:

$ cd /opt/ManageEngine/OpManager/bin

Then from the bin directory, run this command:

$ sudo ./linkAsService.sh

Now you can start the OpManager service through the command below:

$ sudo systemctl start OpManager.service

To stop the OpManager service, run this command:

$ sudo systemctl stop OpManager.service

To verify the status of the OpManager service, run this command:

$ sudo systemctl status OpManager.service

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