Why Knowledge of NMap Is Important to Land Good Penetration Testing Jobs

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Penetration testing is one of the most popular career choices among aspiring cybersecurity professionals. Vacancies are increasing worldwide because every business today wants to stay a step ahead of hackers. Penetration testing jobs require a lot of expertise and understanding of many different tools.

Most penetration testers favor Nmap because it has a powerful scanning option, is easy to use, and has clean installation features. Even network administrators find Nmap a useful tool for their daily tasks such as network inventory, supervising service or host uptime, and managing service upgrade schedules.

This and several other reasons are why Nmap is recommended for better penetration testing job opportunities. Read on to find out more about Nmap and how this tool makes it easier to land good pen testing jobs.

What Is Penetration Testing?

Penetration testing is a simulated cyberattack against a computer system, network, or web application to test for vulnerabilities that a malicious hacker can exploit. It can either be automated or performed manually.

Penetration testing is the best process to identify hidden issues in the system before the bad guys do. It helps organizations to:

  • Assess its observance of compliance requirements.
  • Analyze its security policy.
  • Evaluate an employee’s security awareness.
  • Examine the organization’s capacity to recognize and respond to security incidents.

What Is Nmap and Why Do Penetration Testers Use It?

Nmap is a network scanning tool that implements IP packets to detect all the gadgets linked to a network. It also offers useful information on the operating systems and services being run. The tool was designed for enterprise-sized networks and can scan through a series of connected devices. Internet of Things (IoT) has made these networks more complicated and trickier to secure. Nmap is currently applied in most website censoring tools to audit the traffic between IoT devices and web servers.

Nmap is regarded as one of the most popular network mapper and discovery tools on the market. It’s implemented by network administrators, system administrators, and penetration testers to map their networks. Nmap is mandatory for penetration testing jobs because it also produces data that proves useful in determining weak points to mount an attack. You can further find other crucial details that may be overlooked during a manual testing process.

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Uses of Nmap

A pen tester uses Nmap for in-depth and real-time information on computer networks and the gadgets linked to them. It can offer information on vulnerabilities and your network as a whole (e.g., open ports, live host, and the OS of every linked system). It can also offer useful information on active IP so you can find out if authorized services or unauthorized sources are implementing the IP. Professionals in penetration testing jobs use it because of the additional information gained, which helps them create a more detailed report afterwards.

Other uses of Nmap include:

  • DNS queries and subdomain search.
  • Pinpointing open ports on a target host in preparation for auditing.
  • Network mapping, network inventory, network maintenance, and asset management.
  • Auditing the security of a network by detecting new servers.
  • Auditing the security of a firewall or device by pinpointing the network connections that can be made through it.
  • Producing traffic to hosts on a network, response time measurement, and response analysis.
  • Discovering and manipulating vulnerabilities in a network.

Advantages of Nmap

Nmap makes penetration testing easy and simplified. There are so many advantages of this tool that many employers don’t hire a professional for penetration testing jobs if it is not a part of his/her skill set. Here are some reasons that make Nmap so highly recommended:

  • It is free of cost and an open-source tool.
  • It detects new servers which helps in auditing network systems in greater detail.
  • It is capable of searching subdomain and Domain Name system queries.
  • Nmap scripting engine (NSE) helps in interacting with the target host.
  • It can determine the nature of the service that the host is performing. Pen testers can easily find out if the host is a web server, a mail server, or anything else.

How Can You Learn Nmap?

Nmap isn’t an extremely difficult tool to learn. If you are a professional ethical hacker or an IT professional, it will help if you pursue a penetration testing certification. These courses help you with getting familiar with command-line interfaces. A majority of advanced users can write scripts to automate basic tasks, although it isn’t mandatory for simple network monitoring.

That being said, you can learn how to use Nmap through EC-Council’s Certified Penetration Testing Professional or CPENT program. This pen tester certification program rewrites the criteria for penetration testing training and skill enhancement. The pen tester course also trains you on how to perform successful web penetration testing in an organizational network environment.

Certified Penetration Testing Professional will teach you about the different nuances of pen testing that workplaces expect from employees. The course covers modern technologies that may prove to be a challenge for seasoned ethical hackers as they transition from their current roles. The simulated lab environment will also help you understand the technicalities you might face during a real-life attack. CPENT is the most advanced certification program ideal for penetration testing jobs in this new information age.

Visit our course page today for more information!


Is Nmap important for penetration testing?
Nmap is important for penetration testing because it flags the best sections to target in an attack. Even though it is more of a port scanner than a penetration testing tool, it is quite valuable for ethical hackers in verifying network vulnerabilities. Besides, it’s open-source, which means it’s free.
What are other important penetration testing tools?
There are multiple tools available to a penetration tester, such as:

  • Wireshark
  • Netsparker
  • Nessus
  • John the Ripper
  • Acunetix Scanner
  • Burp Suite
  • Metasploit
  • BeEf
  • W3af
  • Aircrack
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