November 9, 2022 at 3:18 PM
Reference guide for scanning networks with Nmap.What is Nmap?Nmap ("Network Mapper") is a free and open source utility for network discovery and security auditing. Many systems and network administrators also find it useful for tasks such as network inventory, managing service upgrade schedules, and monitoring host or service uptime. Nmap uses raw IP packets in novel ways to determine what hosts are available on the network, what services (application name and version) those hosts are offering, what operating systems (and OS versions) they are running. It was designed to rapidly scan large networks, but works fine against single hosts.Command Linenmap [ ...] [ ] { }Basic Scanning TechniquesThe -s switch determines the type of scan to perform.Nmap Switch Description-sA ACK scan-sF FIN scan-sI IDLE scan-sL DNS scan (a.k.a. list scan)-sN NULL scan-sO Protocol scan-sP Ping scan-sR RPC scan-sS SYN scan-sT TCP connect scan-sW Windows scan-sX XMAS scanScan a Single Targetnmap [target]Scan Multiple Targetsnmap [target1, target2, etc]Scan a List of Targetsnmap -iL [list.txt]Scan a Range of Hostsnmap [range of IP addresses]Scan an Entire Subnetnmap [ip address/cdir]Scan Random Hostsnmap -iR [number]Exclude Targets From a Scannmap [targets] --exclude [targets]Exclude Targets Using a Listnmap [targets] --excludefile [list.txt]Perform an Aggresive Scannmap -A [target]Scan an IPv6 Targetnmap -6 [target]Port Scanning OptionsPerform a Fast Scannmap -F [target]Scan Specific Portsnmap -p [port(s)] [target]Scan Ports by Namenmap -p [port name(s)] [target]Scan Ports by Protocolnmap -sU -sT -p U:[ports],T:[ports] [target]Scan All Portsnmap -p 1-65535 [target]Scan Top Portsnmap --top-ports [number] [target]Perform a Sequential Port Scannmap -r [target]Attempt to Guess an Unknown OSnmap -O --osscan-guess [target]Service Version Detectionnmap -sV [target]Troubleshoot Version Scannmap -sV --version-trace [target]Perform a RPC Scannmap -sR [target][hide] 1.how to usage nmap : https://github.com/jasonniebauer/Nmap-Cheatsheet 2. Installation : https://github.com/nmap/nmap./configuremakemake install [/hide]
