Introduction to Kali Linux 

Typically, operating systems are related to certain jobs. Whenever we think about content or graphics development, macOS comes to mind. Likewise, each hacking incident or general tampering with cyber utilities is tied to a specific operating system, Kali Linux. Many of the greatest figures in the hacking profession use Kali Linux for ethical hacking.

Kali Linux definition? And how to use kali Linux for ethical hacking

Kali Linux is a Linux distribution based on Debian. It’s a well-developed operating system that caters exclusively to network analysts and penetration testers. As a result, using Kali Linux for ethical hacking is just like using a swiss knife. Its various preinstalled tools are extremely handy for ethical hackers. From its days as Backtrack, the Kali Linux is a more refined replacement with more tools related to testing. In contrast to Backtrack, which was bloated with redundant utilities due to several programmes serving the same goal.

Creation of Kali Linux

The creators of Kali Linux are Deavon Kearns and Mati Aharoni of the Kali Linux distribution. They created it as a reworking of the old Backtrack Linux; another Linux distribution focused on penetration testing. As a result, the Debian guidelines govern Kali's development as it imported most of its codes from the Debian repositories. In March 2012, a group of programmers began working. In a protected environment, only a few were authorised to promise packages.The year 2013 witnessed the release of Kali Linux, marking its development's end. After that, Kali has seen numerous significant modifications. Offensive Security is responsible for developing these upgrades.

Why should you use Kali Linux?

Reasons to use Kali Linux are plenty.

Here are some of the advantages of Kali Linux:

The abundance of tools: Kali Linux includes over 600 tools for penetration testing as well as security analytics.

Open source: Being a Linux OS, Kali adheres to the open-source concept, which is admirable. Their development pattern is openly visible on Git, and you get access to the whole source code for customisation reasons.

Multilingual support from customer care: Although penetration devices are often in English. In addition, they have assured us that they provide multilingual support. It allows more operators to work in their local language and find the necessary tools for the task.

The customisable nature: The programmers at aggressive security recognise that not all will accept their design concept. Therefore, they have simplified it for the most daring user to personalise Kali Linux to their taste, right to the kernel.

System Prerequisites for Kali Linux

Installation of Kali is a breeze. You only need to ensure that your hardware is compatible. Kali supports amd64, i386 and ARM (ARMEL and ARMHF) apparatuses. The hardware prerequisites are simple, as indicated below. However, greater hardware will automatically result in higher performance.

Other requirements:

• Minimum disc space requirement of 20 gigabytes for Kali Linux installation.
• RAM for amd64 and i386 architectures should be at least 1GB or 2Gigabytes or more.
• -DVD Drive, VirtualBox or support for USB booting

Kali Linux's ethical hacking software and tools

Undermentioned is a listing of this software's pre-installed tools for ethical hacking. This listing is in no way exhaustive, as Kali includes several tools that cannot all be included and discussed in a single piece.

Aircrack-ng

Aircrack-ng is a collection of devices used to evaluate the security of WiFi networks. It emphasises critical WiFi security areas:

Monitoring: Packet capture and data export to text programs for programming by third-party applications.

Assaulting: Replay attacks, de-authentication, phoney access points, and other strikes by packet injection.

Testing: Validating WiFi card and driver functionality (capture and injection).

Cracking: WEP and PSK (WPA 1 and 2).

All instruments are command-line interfaces that provide extensive scripting. Numerous GUIs have implemented this capability. It typically operates on Linux but is also compatible with Windows, FreeBSD, OS X, OpenBSD, NetBSD, and Solaris.

Nmap

Network Mapper, called Nmap, is a free, open-source network detection and safety auditing application. Nmap utilises simple IP packets in sneaky ways to decide:

• What are hosts available on a network?
• What kind of firewalls is being used?
• Which are the services as per the recommendation from the hosts? What operating system those hosts are operating?

Many network administrators and systems also discover it handy for:

• network inventory
• Service update schedule management.
• Host uptime and monitoring service 

THC Hydra

When brute-forcing is a service for remote authentication, Hydra is frequently the preferred tool. It is highly used for security testing and ethical hacking with Kali Linux. As a result, it can function quick dictionary strikes against over 50 protocols, comprising telnet, HTTPS, HTTP, FTP SMB, numerous databases, and many others. It can penetrate packet crafters, wireless networks, web scanners etc.

Nessus

It is a scanning tool for detecting security flaws in computers that can be used remotely. It doesn’t actively defend your machines against vulnerabilities. Nonetheless, it can detect them by rapidly executing over 1200 checks on vulnerability and issuing notifications when security fixes are required.

WireShark

WireShark is a free, open-source packet analyser that one may use without cost. It provides a microscopic view of network activity, pcap file access, configurable reports, sophisticated triggers, and alarms, among other features. It is supposedly the most expended network protocol analyser for Linux worldwide.

Learning penetration testing and ethical hacking with Kali Linux

In this era of technology, cyber security has immense importance. Above all, this makes ethical hacking an ideal profession for people interested in technology and computers. In addition, learning ethical hacking with Kali Linux can be advantageous, as Kali is the most used OS by hackers. Moreover, tutorials and courses are available on many portals for those interested in learning Kali Linux ethical hacking. 

Learning Kali Linux security testing, penetration testing, and ethical hacking is highly advantageous for a career in cyber security. So, for those who are planning to take a Kali Linux hacking course, Udemy is a great option. Because they are providing a specialised course in Kali Linux for beginners.

Kali Linux Advantages and Disadvantages

Kali Linux enjoys a high level of respect and is utilised by several penetration testing organisations. Despite its accolades, it is not flawless; therefore, here is our evaluation of the package:

Advantages:

• Multiple deployment options, including virtual machine and container operations.
• A broad assortment of important resources
• Absolutely no cost to use
• A Windows-style Desktop environment
• A significant user community in the cybersecurity industry

Disadvantages:

• Numerous tools are obsolete.
• The free tools included with Kali are frequently only enticements towards the premium versions.
• A Kali Windows would be advantageous.

Alternatives to Kali Linux

Uniquely, Kali Linux integrates an operating system with penetration tools. As a result, you will not find such an outstanding free bundle anyplace else. So, Debian Linux is the apparent alternative to Kali Linux. Therefore, if you do not want the burden of 300 tools, you will never use, install Debian for free, browse the Kali Linux tools list, and install only the handful you need.

Here are our top five alternatives to Kali Linux:

Invincible

 This vulnerability scanner may also be used as a research tool by penetration testers. In addition, this web application scanner examines Web pages for vulnerabilities using a browser-based scanner. As a result, it is possible to allow the programme to do a full scan or restrict its functionality to a single vulnerability and repeatedly run it with varied operating parameters to test a specific vulnerability. Moreover, this is a SaaS platform, although Windows Server installation software is also available.

Acunetix

This system is offered in three versions, the lowest of which includes a set of research tools for penetration testing. This system searches for vulnerabilities from both an external and an inside standpoint. As a result, options for deployment include a cloud-based hosted service and software packages for Windows, macOS, and Linux.

Bugcrowd Asset Inventory

 This penetration testing system investigates the business software's integrated auxiliary services. Although a system administrator may investigate the security of a firm's software, few examine the services on which these packages rely. Likewise, Bugcrowd searches application dependencies to discover underlying vulnerabilities. You can request a service demonstration.

CrowdStrike Penetration testing services

 This consulting service delivers a team of penetration testers instead of a tool. Hiring a team to execute your security testing is more effective than providing tools to your IT staff who are not professional white hat hackers.

Indusface Penetration Testing Services

As an alternative to CrowdStrike, you may hire the white-hat hackers of Indusface to assess the security of your system. Further, observe the progression of the attack and determine if your security service detects the hacker's activity. Additionally, they can test APIs and mobile apps.