International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 10 Issue: 05 | May 2023
p-ISSN: 2395-0072
www.irjet.net
A REVIEW ON NMAP AND ITS FEATURES YASHVANT MAHADEV HANGE Department of Mechanical Engineering, DIEMS College of Engineering, Aurangabad, Maharashtra, India. ---------------------------------------------------------------------***--------------------------------------------------------------------to track all the ports, which might result in possible Abstract - Network assaults have been common, resulting in the theft of private data. Information gathering is the first step that hackers do before launching an attack. Nmap is one of the most often used scanning programs at this point to gather data from the target host. To help with the ensuing attack, the acquired data can be further examined. Hence, a reliable method of identifying Nmap scanning behavior must be developed. In Nmap we can scan all the 65535 ports in one go with the packet customizable option, The intrusion detection system (IDS) frequently employs the ET OPEN rule set to safeguard hosts against nefarious intrusion. With ET OPEN restrictions in place, the Nmap detection rate is 58.3%; however, when IDS evasion is present, it drops to 8.3%. We suggest the Comprehensive Nmap Detection Rules because of the low detection rate of ET OPEN (CNDR). Nmap scanning habits can be precisely and effectively detected by CNDR. The customizable fields in Nmap are gone, and rules for operating system scanning are added in the CNDR. With our specified dataset, CNDR achieves 100% detection rate of regular Nmap scanning and 91.7% detection accuracy of Nmap with IDS evasion. The outcome demonstrates that CNDR is more resistant to customized scanning and is superior to ET OPEN.
vulnerability in the network, which can be exploited by hackers for extracting the data.
Key Words: A Review of Nmap and its features, Network
Each genuine connection attempt begins with this phase of the TCP three-way handshake. Scan me completes the second phase by sending a response with the SYN and ACK flags since the target port is open. On a typical connection, Ereet's machine, krad, would send an ACK packet to acknowledge the SYN/ACK and finish the three-way handshake. The SYN/ACK answer has informed Nmap that the port is open, hence it is unnecessary for it to perform this action.
Computer Network security is mainly concerned about the computers that are connected to the internet, from the Network mapping tools we can gather information about the OS, open ports, versions of the system, and its vulnerabilities, The Nmap gives us a lot of features like gathering information about OS, ports, etc. Nmap is open-source platform, Nmap, which stands for Network Mapper, is a free and open source program used for port scanning, vulnerability analysis, and, obviously, network mapping. Nmap was developed in 1997, yet it continues to serve as the benchmark for all other comparable programs, whether they are open-source or commercial.
2. SCANNING TECHNIQUES 2.1 SYN scanning - This is how nmap operates by default. Sending SYN packets to the intended system and watching for a response are involved. On the target machine, open ports are found using this method.
Mapper, Nmap tool, scanning the network, and Computer Networks
1. INTRODUCTION Nowadays, everybody is connected to the world by the means of the Internet, the Internet has penetrated most of the world, and for connecting through the Internet we need to have devices that are capable of sending and receiving data packets. The devices are connected to each other by different types of topologies. Every device which is connected to the internet has its own IP and MAC address. Computer Networking is the practice of exchanging data between nodes in a shared medium. This type of data of computers is sensitive in nature as hackers might clone the data and sniff to the target system. There are several protocols available for the networks, and computers for the smooth functioning of the services. On a normal computer system, there are a total of 65535 ports, from which 1-1024 are dedicated and others are dynamic ports, so it is difficult for system administrators
© 2023, IRJET
|
Impact Factor value: 8.226
|
ISO 9001:2008 Certified Journal
|
Page 1175