The best hacking software that you should learn in 2020/2021

What is Nmap?

Nmap, short for Network Mapper, is a free, open-source tool for vulnerability scanning and network discovery. Network administrators use Nmap to identify what devices are running on their systems, discovering hosts that are available and the services they offer, finding open ports and detecting security risks.

Hacking

While port scanning per se is not illegal, at least under U.S. federal law, Nmap’s features are certainly useful to malicious hackers probing for vulnerabilities to exploit. Certain uses of the software, especially without permission, can get you fired or in legal trouble, even if you’re doing a vulnerability scan for benign purposes.

While some Nmap scans are fairly light touch and may not set off alerts, it’s always best to get your scans approved with the appropriate people in your organization. Be aware that many Nmap options, such as OS fingerprinting, require root privilege. When in doubt about the legality of what you want to do, especially when you are working alone and don’t have an organization’s legal team to consult, speak to a lawyer with expertise in computer fraud and abuse.

What is Nagios?

Nagios is an open source monitoring system for computer systems. It was designed to run on the Linux operating system and can monitor devices running Linux, Windows and Unix operating systems (OSes).

Nagios now known as Nagios Core, is a free and open-source computer-software application that monitors systems, networks and infrastructure. Nagios offers monitoring and alerting services for servers, switches, applications and services. It alerts users when things go wrong and alerts them a second time when the problem has been resolved.

Nagios software runs periodic checks on critical parameters of application, network and server resources. For example, Nagios can monitor memory usage, disk usage, microprocessor load, the number of currently running processes and log files. Nagios also can monitor services, such as Simple Mail Transfer Protocol (SMTP), Post Office Protocol 3 (POP3), Hypertext Transfer Protocol (HTTP) and other common network protocols. Active checks are initiated by Nagios, while passive checks come from external applications connected to the monitoring tool.

What is Metasploit?

Metasploit is a widely used penetration testing tool that makes hacking way easier than it used to be. It has become an indispensable tool for both red team and blue team.

Metasploit is a penetration testing framework that makes hacking simple. It’s an essential tool for many attackers and defenders. Point Metasploit at your target, pick an exploit, what payload to drop, and hit Enter.

The Metasploit Framework is a Ruby-based, modular penetration testing platform that enables you to write, test, and execute exploit code. The Metasploit Framework contains a suite of tools that you can use to test security vulnerabilities, enumerate networks, execute attacks, and evade detection. At its core, the Metasploit Framework is a collection of commonly used tools that provide a complete environment for penetration testing and exploit development.

What is Wireshark?

Wireshark is a free and open-source packet analyzer. It is used for network troubleshooting, analysis, software and communications protocol development, and education.

Wireshark is a must-have (and free) network protocol analyzer for any security professional or systems administrator. It’s like Jaws, only for packets.

Wireshark is the world’s leading network traffic analyzer, and an essential tool for any security professional or systems administrator. This free software lets you analyze network traffic in real time, and is often the best tool for troubleshooting issues on your network.

Common problems that Wireshark can help troubleshoot include dropped packets, latency issues, and malicious activity on your network. It lets you put your network traffic under a microscope, and provides tools to filter and drill down into that traffic, zooming in on the root cause of the problem. Administrators use it to identify faulty network appliances that are dropping packets, latency issues caused by machines routing traffic halfway around the world, and data exfiltration or even hacking attempts against your organization.