Emmanuel Umelo
Posted: September 09, 2025
Cybersecurity is an evolving field. Year in, year out, the number of devices connected to the internet continues to show a significant rise. In 2025 alone, according to Statista, 19.8 billion Internet of Things (IoT) devices are currently connected to the internet, with an expected doubling to over 40.6 billion by 2034. With AI and immersive technology, for instance, cyber attacks have become more sophisticated. Malicious actors are testing new methods to exploit potential vulnerabilities. For cybersecurity professionals, ethical hackers, and pentesters alike, there is a constant need to build, sharpen, and hone their skills to help mitigate these evolving threats. In this content, we will walk through how to set up your private lab environment or playground. This privately controlled environment gives you a safe space to practice, test, and grow your knowledge. It ensures there are no risks in breaking systems or violating legal boundaries. Lets break this further down, but first, you must consider the legal and ethical side of things.
A lot of beginners don't know where the legal lines are.
Ethical hacking labs require stable performance since they often run multiple virtual machines and simulate complex network environments. Performance issues such as lag, crashes, and limited testing capability can occur not only on underpowered systems but also when system resources (CPU, RAM, storage) are not allocated properly between host and virtual machines.
Components | Recommended | Why This? |
---|---|---|
CPU | Intel Core i5, i7, and above (Intel or AMD) | Handles multiple VMs and heavy tools (like Burp Suite, Metasploit) |
RAM | Min 8GB and above | More memory means smoother multitasking in virtualised environments |
Storage | 512 GB SSD minimum | Faster VM boot, quicker tool execution |
GPU | Optional (integrated is fine) | Needed only for password cracking with tools like Hashcat |
Cooling | Optional (integrated is fine) | Hacking labs can cause the CPU to overheat during intense scans |
Note : While financial challenges may affect acquiring a better laptop, having a system below these specifications can be frustrating. For instance, brute-forcing and cracking hashed passwords require enough system power and performance. Things like the Graphics Processing Unit (GPU) and memory, powering your virtual machine, and so on, can slow your system down if the specs are below standard.
There are several machines, software, and tools needed to set up your private lab properly:
Let's explain these terms:
https://www.vmware.com/products/desktop-hypervisor/workstation-and-fusion
https://sourceforge.net/projects/metasploitable/files/Metasploitable2/
To download VirtualBox, refer to the downloads page above. Then download the virtual machine of your choice. Download the package and install it. Once installation is complete, you should see a similar page like the ones below.
Now we are going to be installing Kali Linux and Mr Robot as an instance.
Now let's update the network settings to make sure our VMs are secure.
There are many ways to set up a network in VirtualBox. In our case, we want to isolate our lab from the public internet. The best way to do this is to set up a host-only network. In a host-only network, the VMs can communicate with each other but not with the public internet.
Additional Tips: Do the same for the target machine. The IP addresses for these virtual machines will automatically be assigned by our “host-only” network.
To see if both machines are installed properly, boot them.
Note :Both machines will show a default option to start up. Just press Enter . If the VM looks small on your screen, click View and click on Scaled Mode on the top menu.
The username and password for the Kali machine are “kali”.
You should see the Kali Linux UI as shown below:
For Mr.Robot box, you should see the following UI:
Launch your Windows machine and get ready to start hacking the Windows system.
Once your basic lab is up, install advanced tools to simulate deeper attack chains.
Tool | Function | Package |
---|---|---|
Burpsuite | Exploitation framework | Comes with Kali |
Metasploit | Packet analysis, sniffing | Comes with Kali |
Wireshark | Password cracking with GPU | Comes With Kali |
Hashcat | Network simulation for infrastructure hacking | Comes with Kali |
GNS3 | Containerised environments for web services | Install via GitHub |
Docker | Lightweight, great for building custom packages or malware testing | Install via GitHub |
Keeping your lab updated and functional is essential.
Ethical Hacking- Reinvent Security | Cybersecurity Laws and Regulations - Canada (ICLG)