Angry IP Scanner provides all of this at no cost (yes, free!). It works by pinging every IP address on a network and can perform port and IP address scanning and find NetBIOS and web server information, among many other useful features. This cross-platform, open-source network scanner is built for speed and simplicity. Capability to store scan results in a relational database (output).Enable multiple modules from command line.Remote OS and application detection (active and passive).Asynchronous UDP scanning (protocol specific).Asynchronous banner grabbing - used in OS and application fingerprinting.Some of the unique features it offers include: What sets it apart from other tools is that it uses its own TCP/IP stack, which means it is faster than other tools. Unicornscan is a powerful, sophisticated and stateless port scan and reconnaissance tool that has hundreds of features. Just some of this information includes available ports, available hosts, what services are running on available hosts, application name and version, the target system’s OS and version, finding vulnerabilities on hosts, the type of packet filters in use, firewall information and a great deal of other information. It works by sending raw IP packets to targeted ports and can gather a plethora of information about its target. Nmap is free, open-source and the most well-known of all port scanning/interrogation tools. The general idea with these tools is that IP packets are used to gather reconnaissance information about network ports. There are a variety of tools available for port interrogation purposes. You, as the ethical hacker, want to know this so you can address these vulnerabilities long before attackers can exploit them.
They also want to know which unnecessary services are running on open ports because they are the reconnaissance equivalent of a sitting duck - if you don’t use a service (or monitor them on some level), it can be a vulnerability. Real attackers want to know this because the attack techniques they choose will depend on this. This is valuable because different application versions have their own vulnerabilities. It is also a way to discover details about the services running on these open ports, including application name, version number and other useful information like info about the traffic crossing the network. Port interrogation, also known as port scanning, is a way to see which ports are enabled and open. We’ll look at what port interrogation is and the different tools and techniques that ethical hackers should understand. This article will help you explore the details of port interrogation.
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