Nmap or Network Mapper is undoubtedly one of the most used programs for discovering hosts connected to a network. Using the Nmap command-line tool for scanning a network. First, we will see the command line tools natively available on Ubuntu 20.04 for scanning a network then, we will see a gui program build for this purpose. In this guide, we will explore different ways to discover different devices connected to our network. This helps the administrators to narrow the investigation process, and it also makes trouble tracking easier. In case of any awful event, knowing who is connected to the network is the first and most fundamental step towards the threat analysis. Organizations spend millions of dollars on securing themselves from any threat exposure. Maintaining a stable and secure network by preventing unauthorized access and keeping an eye on the activity of legitimate users is very important. This is true as even big players like Github, FireEye, Capitol One, etc., have become the victims of cyberattacks in recent times. Any negligence, in this case, can lead to the loss of potential assets and the reputation of the organization. This raises the concern of organizations to protect their network and online resources from any potential security breaches. With the rise of the Internet of Things(IoT), more devices are being connected to the internet.

Network administrators need to scan for connected devices on the network as a security measure.

Ubuntu scan network mac address