NMAP Commands Cheatsheet

is a free and open-source security scanner, it is use to discover hosts and services on a computer network, thus building a “m...

is a free and open-source security scanner, it is use to discover hosts and services on a computer network, thus building a “map” of the network. To accomplish its goal, Nmap sends specially crafted packets to the target host and then analyzes the responses.
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NMAP Features

  • Host discovery – Identifying hosts on a network. For example, listing the hosts that respond to TCP and/or ICMP requests or have a particular port open.
  • Port scanning – Enumerating the open ports on target hosts.
  • Version detection – Interrogating network services on remote devices to determine application name and version number.
  • OS detection – Determining the operating system and hardware characteristics of network devices.
  • Scriptable interaction with the target – using Nmap Scripting Engine (NSE) and Lua programming language.
  • Nmap can provide further information on targets, including reverse DNS names, device types, and MAC addresses.

Typical uses of Nmap:

  • Auditing the security of a device or firewall by identifying the network connections which can be made to, or through it.
  • Identifying open ports on a target host in preparation for auditing.
  • Network inventory, network mapping, maintenance and asset management.
  • Auditing the security of a network by identifying new servers.
  • Generating traffic to hosts on a network, response analysis and response time measurement.
  • Finding and exploiting vulnerabilities in a network.
  • DNS queries and subdomain search

NMAP Commands Cheatsheet with Example.

Basic Scanning Commands

Scan a Single Targetnmap [target]nmap
Scan Multiple Targetsnmap [target1, target2, etc]nmap
Scan a List of Targetsnmap -iL [list.txt]nmap -iL targets.txt
Scan a Range of Hostsnmap [range of ip addresses]nmap
Scan an Entire Subnetnmap [ip address/cdir]nmap
Scan Random Hostsnmap -iR [number]nmap -iR 0
Excluding Targets from a Scannmap [targets] –exclude [targets]nmap –exclude,
Excluding Targets Using a Listnmap [targets] –excludefile [list.txt]nmap –excludefile notargets.txt
Perform an Aggressive Scannmap -A [target]nmap -A
Scan an IPv6 Targetnmap -6 [target]nmap -6 1aff:3c21:47b1:0000:0000:0000:0000:2afe

Discovery Options

Perform a Ping Only Scannmap -sP [target]nmap -sP
Don’t Pingnmap -PN [target]nmap -PN
TCP SYN Pingnmap -PS [target]nmap -PS
TCP ACK Pingnmap -PA [target]nmap -PA
UDP Pingnmap -PU [target]nmap -PU
SCTP INIT Pingnmap -PY [target]nmap -PY
ICMP Echo Pingnmap -PE [target]nmap -PE
ICMP Timestamp Pingnmap -PP [target]nmap -PP
ICMP Address Mask Pingnmap -PM [target]nmap -PM
IP Protocol Pingnmap -PO [target]nmap -PO
ARP Pingnmap -PR [target]nmap -PR
Traceroutenmap –traceroute [target]nmap –traceroute
Force Reverse DNS Resolutionnmap -R [target]nmap -R
Disable Reverse DNS Resolutionnmap -n [target]nmap -n
Alternative DNS Lookupnmap –system-dns [target]nmap –system-dns
Manually Specify DNS Server(s)nmap –dns-servers [servers] [target]nmap –dns-servers
Create a Host Listnmap -sL [targets]nmap -sL

Advanced Scanning Options

TCP SYN Scannmap -sS [target]nmap -sS
TCP Connect Scannmap -sT [target]nmap -sT
UDP Scannmap -sU [target]nmap -sU
TCP NULL Scannmap -sN [target]nmap -sN
TCP FIN Scannmap -sF [target]nmap -sF
Xmas Scannmap -sX [target]nmap -sX
TCP ACK Scannmap -sA [target]nmap -sA
Custom TCP Scannmap –scanflags [flags] [target]nmap –scanflags SYNFIN
IP Protocol Scannmap -sO [target]nmap -sO
Send Raw Ethernet Packetsnmap –send-eth [target]nmap –send-eth
Send IP Packetsnmap –send-ip [target]nmap –send-ip

Port Scanning Options

Perform a Fast Scannmap -F [target]nmap -F
Scan Specific Portsnmap -p [port(s)] [target]nmap -p 21-25,80,139,8080
Scan Ports by Namenmap -p [port name(s)] [target]nmap -p ftp,http*
Scan Ports by Protocolnmap -sU -sT -p U:[ports],T:[ports] [target]nmap -sU -sT -p U:53,111,137,T:21-25,80,139,8080
Scan All Portsnmap -p ‘*’ [target]nmap -p ‘*’
Scan Top Portsnmap –top-ports [number] [target]nmap –top-ports 10
Perform a Sequential Port Scannmap -r [target]nmap -r

Version Detection

Operating System Detectionnmap -O [target]nmap -O
Submit TCP/IP Fingerprintswww.nmap.org/submit/
Attempt to Guess an Unknown OSnmap -O –osscan-guess [target]nmap -O –osscan-guess
Service Version Detectionnmap -sV [target]nmap -sV
Troubleshooting Version Scansnmap -sV –version-trace [target]nmap -sV –version-trace
Perform a RPC Scannmap -sR [target]nmap -sR

Timing Options

Timing Templatesnmap -T[0-5] [target]nmap -T3
Set the Packet TTLnmap –ttl [time] [target]nmap –ttl 64
Minimum # of Parallel Operationsnmap –min-parallelism [number] [target]nmap –min-parallelism 10
Maximum # of Parallel Operationsnmap –max-parallelism [number] [target]nmap –max-parallelism 1
Minimum Host Group Sizenmap –min-hostgroup [number] [targets]nmap –min-hostgroup 50
Maximum Host Group Sizenmap –max-hostgroup [number] [targets]nmap –max-hostgroup 1
Maximum RTT Timeoutnmap –initial-rtt-timeout [time] [target]nmap –initial-rtt-timeout 100ms
Initial RTT Timeoutnmap –max-rtt-timeout [TTL] [target]nmap –max-rtt-timeout 100ms
Maximum Retriesnmap –max-retries [number] [target]nmap –max-retries 10
Host Timeoutnmap –host-timeout [time] [target]nmap –host-timeout 30m
Minimum Scan Delaynmap –scan-delay [time] [target]nmap –scan-delay 1s
Maximum Scan Delaynmap –max-scan-delay [time] [target]nmap –max-scan-delay 10s
Minimum Packet Ratenmap –min-rate [number] [target]nmap –min-rate 50
Maximum Packet Ratenmap –max-rate [number] [target]nmap –max-rate 100
Defeat Reset Rate Limitsnmap –defeat-rst-ratelimit [target]nmap –defeat-rst-ratelimit

Firewall Evasion Techniques

Fragment Packetsnmap -f [target]nmap -f
Specify a Specific MTUnmap –mtu [MTU] [target]nmap –mtu 32
Use a Decoynmap -D RND:[number] [target]nmap -D RND:10
Idle Zombie Scannmap -sI [zombie] [target]nmap -sI
Manually Specify a Source Portnmap –source-port [port] [target]nmap –source-port 1025
Append Random Datanmap –data-length [size] [target]nmap –data-length 20
Randomize Target Scan Ordernmap –randomize-hosts [target]nmap –randomize-hosts
Spoof MAC Addressnmap –spoof-mac [MAC|0|vendor] [target]nmap –spoof-mac Cisco
Send Bad Checksumsnmap –badsum [target]nmap –badsum

Output options

Save Output to a Text Filenmap -oN [scan.txt] [target]nmap -oN scan.txt
Save Output to a XML Filenmap -oX [scan.xml] [target]nmap -oX scan.xml
Grepable Outputnmap -oG [scan.txt] [targets]nmap -oG scan.txt
Output All Supported File Typesnmap -oA [path/filename] [target]nmap -oA ./scan
Periodically Display Statisticsnmap –stats-every [time] [target]nmap –stats-every 10s
133t Outputnmap -oS [scan.txt] [target]nmap -oS scan.txt

Troubleshooting And Debugging

Getting Helpnmap -hnmap -h
Display Nmap Versionnmap -Vnmap -V
Verbose Outputnmap -v [target]nmap -v
Debuggingnmap -d [target]nmap -d
Display Port State Reasonnmap –reason [target]nmap –reason
Only Display Open Portsnmap –open [target]nmap –open
Trace Packetsnmap –packet-trace [target]nmap –packet-trace
Display Host Networkingnmap –iflistnmap –iflist
Specify a Network Interfacenmap -e [interface] [target]nmap -e eth0

NMAP Scripting Engine

Execute Individual Scriptsnmap –script [script.nse] [target]nmap –script banner.nse
Execute Multiple Scriptsnmap –script [expression] [target]nmap –script ‘http-*’
Script Categoriesall, auth, default, discovery, external, intrusive, malware, safe, vuln
Execute Scripts by Categorynmap –script [category] [target]nmap –script ‘not intrusive’
Execute Multiple Script Categoriesnmap –script [category1,category2,etc]nmap –script ‘default or safe’
Troubleshoot Scriptsnmap –script [script] –script-trace [target]nmap –script banner.nse –script-trace
Update the Script Databasenmap –script-updatedbnmap –script-updatedb

The Commands Submitted by Kislay Bhardwaj, he is an Security researcher and his specialty in Penetration Testing.



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NhutTruong.Com - Chia sẻ kiến thức miễn phí: NMAP Commands Cheatsheet
NMAP Commands Cheatsheet
NhutTruong.Com - Chia sẻ kiến thức miễn phí
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