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Getting Started in Port Scanning Using Nmap and Kali Linux – Course Drive

Getting Started in Port Scanning Using Nmap and Kali Linux - Course Drive Reducing Cyber Security Threats Through Understanding

Getting Started in Port Scanning Using Nmap and Kali Linux – Course Drive

Reducing Cyber Security Threats Through Understanding

What you’ll learn

Getting Started in Port Scanning Using Nmap and Kali Linux – Course Drive

  • During this course, you will learn to perform cybersecurity audits of your network using Kali Linux and nmap
  • You will be able to identify weaknesses in services and systems to mitigate against the attack
  • You will learn to use Wireshark to capture packets on the network

Requirements

  • You should have a good understanding of Linux from the command line
  • You should have some knowledge of networking

Description

How Secure Is Your System?

A default install of CentOS 8 may seem like a good idea but how exposed does that leave you, after all, it is Enterprise Level Linux.

In this course, we work with nmap and Wireshark on Kali Linux from Offensive Security. Scanning your network with the tools and systems used by hackers helps you understand the cybersecurity risk to your systems. First, we identify one simple weakness with port 9090 open by default, in the firewall in readiness for Cockpit the web administration console. Simply closing 9090 in the firewall reduces this threat.

Next, we learn to audit SSH security to detect systems that allow password-based authentication, again a default setting we need to secure. The nmap Scripting Engine or NSE is perfect to delve inside of the services running on your system to expose weaknesses. Throughout the course, we use Wireshark to analyze the network activity helping you to understand the different modes of nmap.

Finally, we secure the threats using Ansible configuration management;

The main topics covered in this course include:

  • Nmap as root and non-root accounts
  • The detection phases used by nmap
  • Host discovery using nmap
  • Using NSE scripts to print SSH Host-keys and authentication methods
  • Using different host discovery techniques in nmap
  • Learn using different port selection mechanisms in nmap
  • Capturing and filtering packets with Wireshark
  • Using nmap and awk to list SSH Servers on the network
  • Creating lists of online hosts
  • Using Ansible to secure your host configuration

Who this course is for:

  • Linux administrators looking to secure their systems
  • Security practitioners needing to learn more about network analysis
  • Last updated 5/2020

Getting Started in Port Scanning Using Nmap and Kali Linux – Course Drive

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