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Version: 8.5.X

Credential-Less Authentication

Users can perform credential-less discovery (assets and CIs) in ServiceOps using the Nmap tool. Nmap (Network Mapper) is a free, open-source network discovery and security auditing tool. It allows users to scan networks to identify active devices, open ports, services, and operating system versions.

note
  • In the case of On-premise, the Nmap tool is pre-installed.
  • In the case of SaaS-based architecture or the machine in which Poller is installed, Nmap and npcap must be installed manually. For more details, refer to the Nmap installation section.

To perform Credential-less discovery, provide the following details:

  • Name: Enter the name for network scan.
  • IP Range Type: Select the type of IP Range. The options are:
    • Entire Network: All the IPs in the whole network will be scanned for the discovery. If selected, enter the IP Range Start.
    • Specific IP Range: Select if assets from a specific IP Range is to be scanned. If selected, enter the IP Range Start and IP Range End for discovery.
    • Specific set of IPs: Select if you want to scan only specific IP Addresses for asset discovery. If selected, enter the IP Addresses. Also, you can import the IP addresses via a CSV file using the Import IP Addresses link.
  • Authentication Preference: Select the authentication preference as Crendetial-Less.
  • Location: Select the location of network scan. It is optional.
  • Department: Select the department of network scan. It is optional.
  • Protocol Type: Select the protocol type. The default is Static.
  • Description: Enter a brief description.
  • Poller: If Poller is installed, select the Poller using which you want to perform the discovery. The dropdown will display only the Poller in which Nmap is installed.
  • Once done, click save and run the discovery process using the Discover New Asset/CI option.

Nmap Installation​

This section provides a step-by-step guide on how to install Nmap, a powerful network scanning tool widely used for network discovery, security auditing, and troubleshooting. Nmap (Network Mapper) is open-source software that allows users to detect live hosts, services, and operating systems on a network, making it a valuable asset for both IT professionals and cybersecurity enthusiasts.

note

This guide covers installation instructions for the Windows Operating System.

To install Nmap manually,

  1. Open the nmap.org website and download the latest stable release self-installer.
  2. Once downloaded, run the setup exe file and the wizard opens.

  1. Click I Agree and the following screen appears.

Click Next. The Npcap component must be selected.

  1. Click Install.

  1. The Npcap setup initiates as shown below. Click I Agree.

  1. Click Install.

  1. Once the Npcap installation is completed, click Next.

  1. Click Finish. The Npcap is installed succesfully.

  1. Next, the Nmap installation process resumes. Once the Nmap installation is completed, click Next.

  1. If required, create shortcuts by selecting the required option, and click Next.

  1. Click Finish.

  1. Once the nmap and npcap are installed, you can check its version in the poller UI.

  1. Once the installation is complete, set the variable path in the system. To set, navigate to System Properties > Advanced System Settings > Environment Variables.

  1. In the Environment Variables popup, edit the Path System variable, and add a new path for the Nmap directory in it as shown below.

Once done, click OK in all the windows.

  1. You can view the Nmap status on the portal from Admin > Discovery and Agents > Agent > Discovery Poller page.