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Nagios Core

Nagios Core is a free and open source computer-software application that monitors systems, networks and infrastructure. Nagios offers monitoring and alerting services for servers, switches, applications and services.

Nagios provides complete monitoring of Linux operating systems and distributions – including operating system metrics, service state, process state, file system usage, and more. When you use Nagios to monitor your Linux environment, you're using one of the most powerful Linux monitoring tools on the planet.

Nagios Core features include:

  • Comprehensive Monitoring
  • Problem Remediation
  • Reporting
  • Extendable Architecture
  • Visibility & Awareness
  • Proactive Planning
  • Multi-Tenant Capabilities
  • Advantages and benefits of free and open-source software
  • Stable, Reliable, and Respected Platform
  • Customizable Code

 

Awards

Nagios Core Selected as SourceForge “Project of the Week” in Dec 2016.

 

Nagios Core live cast:
 

You can subscribe Nagios Core to an AWS Marketplace product and launch an instance from the Nagios Core product's AMI using the Amazon EC2 launch wizard.

To launch an instance from the AWS Marketplace using the launch wizard

  1. Open the Amazon EC2 console at https://console.aws.amazon.com/ec2/.
  2. From the Amazon EC2 dashboard, choose Launch Instance.
  3. On the Choose an Amazon Machine Image (AMI) page, choose the AWS Marketplace category on the left. Find a suitable AMI by browsing the categories, or using the search functionality. Choose Select to choose your product.
  4. A dialog displays an overview of the product you've selected. You can view the pricing information, as well as any other information that the vendor has provided. When you're ready, choose Continue.
  5. On the Choose an Instance Type page, select the hardware configuration and size of the instance to launch. When you're done, choose Next: Configure Instance Details.
  6. On the next pages of the wizard, you can configure your instance, add storage, and add tags. For more information about the different options you can configure, see Launching an Instance. Choose Next until you reach the Configure Security Group page.
  7. The wizard creates a new security group according to the vendor's specifications for the product. The security group may include rules that allow all IP addresses (0.0.0.0/0) access on SSH (port 22) on Linux or RDP (port 3389) on UBUNTU. We recommend that you adjust these rules to allow only a specific address or range of addresses to access your instance over those ports.
  8. When you are ready, choose Review and Launch.
  9. On the Review Instance Launch page, check the details of the AMI from which you're about to launch the instance, as well as the other configuration details you set up in the wizard. When you're ready, choose Launch to select or create a key pair, and launch your instance.
  10. Depending on the product you've subscribed to, the instance may take a few minutes or more to launch. You are first subscribed to the product before your instance can launch. If there are any problems with your credit card details, you will be asked to update your account details. When the launch confirmation page displays

 

User Interface: -

The user interface is web-based, making it easier to secure and access for users, as well as being more familiar to them. Because the software is open source, virtually any part of the user interface can be customized for a particular organization. 

About

Nagios Core is a free and open source computer-software application that monitors systems, networks and infrastructure. Nagios offers monitoring and alerting services for servers, switches, applications and services.

Guidelines

Customization is open and available to any member of the Nagios community. This is open source software, full access to source code.

Limitations

  • The lack of interactive and attractive user interface. Some of the weaknesses can be fulfilled with add-ons or plugins from the Nagios community.

Usage / Deployment Instruction

Step 1.  Open putty and connect with your machine.

             IP address of the running EC2 instance.

 

Step 2. Login with user name “ubuntu”

 

Step 3: Change the Nagios Admin password for user “nagiosadmin”

Run this command to set the password for user “nagiosadmin

$ sudo htpasswd –c /etc/nagios3/htpasswd.users nagiosadmin

 

Step 4:- Login into Nagios admin with new password by using  http://<Instance public IP>/nagios3/

 
Live Demo

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