Nmap software introduction
The software has many substantive functions and features, and has strong usage effects in port filtering detection, distribution scanning, dynamic delay and retransmission. The software is simple to operate and flexible to use. It can also be used to expand advanced website detection functions, such as web scanning, vulnerability discovery, vulnerability exploitation, etc. The Lua language is used as the NSE script language. The number of supported script languages allows users to freely choose scripts for detection.
Nmap software functions
1.Version Detection
Used to identify the application and program version running on the port.
Nmap can currently detect hundreds of application protocols. For unrecognized applications, Nmap will print out the fingerprint of the application by default. If the user knows the application, the user can submit the information to the community and contribute to the community.
2. Operating system detection (OS detection)
Used to identify the operating system type, version number and device type of the target machine.
Nmap currently provides fingerprint databases for thousands of operating systems or devices, which can identify general PC systems, routers, switches and other device types.
3. Firewall/IDS evasion (Firewall/IDS evasion)
Nmap provides a variety of mechanisms to circumvent the blocking and inspection of firewalls and IDS, so as to secretly detect the status of the target machine.
Basic circumvention methods include: Fragment/IP decoys/IP spoofing/MAC address camouflage spoofing) and so on.
Nmap installation steps
1. Download the official version of Nmap installation package from Huajun Software Park. After unzipping, double-click the "exe" file to enter the installation wizard, read the license agreement, and click I Agree
2. Select the components you want to install and click Next
3. Click "Browse" to select the installation location. Generally, it defaults to the C drive. It is recommended to install on the D drive. Click Install to install.
4.Nmap installation is complete, click Finish to exit the installation wizard
Nmap FAQ
1. For what purpose do network administrators use the nmap tool?
Answer: nmap is a network connection side scan. It is one of the must-use tools for network administrators and is used to evaluate network system security.
2. What exactly does NMAP scan?
Answer: NMAP is a network detection and security scanning program. System administrators and individuals can use this software to scan large networks and obtain information such as which hosts are running and what services are provided.
Nmap update log
1. Modify user-submitted bugs
2.Add new features
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