nmap - cheatsheet

Updated: 2023-12-31

2 min read

Scanning Options

Nmap Option	Description
`10.10.10.0/24`	Target network range.
`-sn`	Disables port scanning.
`-Pn`	Disables ICMP Echo Requests
`-n`	Disables DNS Resolution.
`-PE`	Performs the ping scan by using ICMP Echo Requests against the target.
`--packet-trace`	Shows all packets sent and received.
`--reason`	Displays the reason for a specific result.
`--disable-arp-ping`	Disables ARP Ping Requests.
`--top-ports=<num>`	Scans the specified top ports that have been defined as most frequent.
`-p-`	Scan all ports.
`-p22-110`	Scan all ports between 22 and 110.
`-p22,25`	Scans only the specified ports 22 and 25.
`-F`	Scans top 100 ports.
`-sS`	Performs an TCP SYN-Scan.
`-sA`	Performs an TCP ACK-Scan.
`-sU`	Performs an UDP Scan.
`-sV`	Scans the discovered services for their versions.
`-sC`	Perform a Script Scan with scripts that are categorized as “default”.
`--script <script>`	Performs a Script Scan by using the specified scripts.
`-O`	Performs an OS Detection Scan to determine the OS of the target.
`-A`	Performs OS Detection, Service Detection, and traceroute scans.
`-D RND:5`	Sets the number of random Decoys that will be used to scan the target.
`-e`	Specifies the network interface that is used for the scan.
`-S 10.10.10.200`	Specifies the source IP address for the scan.
`-g`	Specifies the source port for the scan.
`--dns-server <ns>`	DNS resolution is performed by using a specified name server.

Nmap Option	Description
`-oA filename`	Stores the results in all available formats starting with the name of “filename”.
`-oN filename`	Stores the results in normal format with the name “filename”.
`-oG filename`	Stores the results in “grepable” format with the name of “filename”.
`-oX filename`	Stores the results in XML format with the name of “filename”.

Nmap Option	Description
`--max-retries <num>`	Sets the number of retries for scans of specific ports.
`--stats-every=5s`	Displays scan’s status every 5 seconds.
`-v/-vv`	Displays verbose output during the scan.
`--initial-rtt-timeout 50ms`	Sets the specified time value as initial RTT timeout.
`--max-rtt-timeout 100ms`	Sets the specified time value as maximum RTT timeout.
`--min-rate 300`	Sets the number of packets that will be sent simultaneously.
`-T <0-5>`	Specifies the specific timing template.