Nmap/Optionen

Optionen

• Ziel-Spezifikation
• Host Entdeckung
• Scan Techniken
• [[#Port Spezifikation|Port Spezifikation Und Scan Befehl]]
• Service/Versions Erkennung
• Script Scan
• Os Erkennung
• Timing und Darstellung
• Firewall/Ids Umgehung Und -Täuschung
• Ausgabe
• Misc

Ziele

Argument	Parameter	Beispiel
Hostnames	IP addresses, Networks, ...	scanme.nmap.org, microsoft.com/24, 192.168.0.1; 10.0.0-255.1-254
-iL	<inputfilename>	Input from list of hosts/networks* -iR <num hosts>: Choose random targets
--exclude	<host1[,host2][,host3],...>	Exclude hosts/networks
--excludefile	<exclude_file>	Exclude list from file

Host Entdeckung

Argument	Parameter	Beispiel
-sL		List Scan: simply list targets to scan
-sP		Ping Scan: go no further than determining if host is online
-PN		Treat all hosts as online -- skip host discovery
-PS/PA/PU	[portlist]	TCP SYN/ACK or UDP discovery to given ports
-PE/PP/PM		ICMP echo, timestamp, and netmask request discovery probes
-PO	[protocol list]	IP Protocol Ping
-n/-R		Never do DNS resolution/Always resolve [default: sometimes]
--dns-servers	<serv1[,serv2],...>	Specify custom DNS servers
--system-dns		Use OS's DNS resolver
--traceroute		Trace hop path to each host

Scan Techniken

Argument	Parameter	Beispiel
-sS/sT/sA/sW/sM		TCP SYN/Connect()/ACK/Window/Maimon scans
-sU		UDP Scan
-sN/sF/sX		TCP Null, FIN, and Xmas scans
--scanflags	<flags>	Customize TCP scan flags
-sI	<zombie host[:probeport]>	Idle scan
-sO		IP protocol scan
-b	<FTP relay host>	FTP bounce scan

Port Spezifikation

Argument	Parameter	Beschreibung	Beispiel
-p	<port ranges>	Only scan specified ports	-p22; -p1-65535; -p U:53,111,137,T:21-25,80,139,8080
-F		Fast mode - Scan fewer ports than the default scan
-r		Scan ports consecutively - don't randomize
--top-ports	<number>	Scan <number> most common ports
--port-ratio	<ratio>	Scan ports more common than <ratio>

Service/Versions Erkennung

Argument	Parameter	Beschreibung	Beispiel
-sV		Probe open ports to determine service/version info
--version-intensity	<level>	Set from 0 (light) to 9 (try all probes)
--version-light		Limit to most likely probes (intensity 2)
--version-all		Try every single probe (intensity 9)
--version-trace		Show detailed version scan activity (for debugging)

Script Scan

Argument	Parameter	Beschreibung	Beispiel
-sC		equivalent to --script=default
--script	<Lua scripts>	<Lua scripts> is a comma separated list of directories, script-files or script-categories
--script-args	=<n1=v1,[n2=v2,...]>	provide arguments to scripts
--script-trace		Show all data sent and received
--script-updatedb		Update the script database

OS Erkennung

Argument	Parameter	Beispiel
OS-Fingerprinting (engl. für "Betriebssystem-Fingerabdruck")
-O: Enable OS detection
--osscan-limit: Limit OS detection to promising targets
--osscan-guess: Guess OS more aggressively

Timing und Darstellung

Argument	Parameter	Beispiel
Options which take are in milliseconds, unless you append 's'(seconds), 'm' (minutes), or 'h' (hours) to the value (e.g. 30m).
-T<0-5>: Set timing template (higher is faster)
--min-hostgroup/max-hostgroup <size>: Parallel host scan group sizes
--min-parallelism/max-parallelism <numprobes>: Probe parallelization
--min-rtt-timeout/max-rtt-timeout/initial-rtt-timeout : Specifies probe round trip time.
--max-retries <tries>: Caps number of port scan probe retransmissions.
--host-timeout : Give up on target after this long
--scan-delay/--max-scan-delay : Adjust delay between probes
--min-rate <number>: Send packets no slower than <number> per second
--max-rate <number>: Send packets no faster than <number> per second

Firewall/Ids Umgehung Und -Täuschung

Argument	Parameter	Beispiel
-f; --mtu <val>: fragment packets (optionally w/given MTU)
-D <decoy1,decoy2[,ME],...>: Cloak a scan with decoys
-S <IP_Address>: Spoof source address
-e <iface>: Use specified interface
-g/--source-port <portnum>: Use given port number
--data-length <num>: Append random data to sent packets
--ip-options <options>: Send packets with specified ip options
--ttl <val>: Set IP time-to-live field
--spoof-mac <mac address/prefix/vendor name>: Spoof your MAC address
--badsum: Send packets with a bogus TCP/UDP checksum

Ausgabe

Argument	Parameter	Beispiel
<rIpt kIddi3,and Grepable format, respectively, to the given filename.
-oA <basename>: Output in the three major formats at once
-v: Increase verbosity level (use twice or more for greater effect)
-d[level]: Set or increase debugging level (Up to 9 is meaningful)
--reason: Display the reason a port is in a particular state
--open: Only show open (or possibly open) ports
--packet-trace: Show all packets sent and received
--iflist: Print host interfaces and routes (for debugging)
--log-errors: Log errors/warnings to the normal-format output file
--append-output: Append to rather than clobber specified output files
--resume <filename>: Resume an aborted scan
--stylesheet <path/URL>: XSL stylesheet to transform XML output to HTML
--webxml: Reference stylesheet from Nmap.Org for more portable XML
--no-stylesheet: Prevent associating of XSL stylesheet w/XML output

MISC

Argument	Parameter	Beispiel
MISC ("Minimal instruction set computer" engl. für Computer mit minimalem Befehlssatz)
-6: Enable IPv6 scanning
-A: Enables OS detection and Version detection, Script scanning and Traceroute
--datadir <dirname>: Specify custom Nmap data file location
--send-eth/--send-ip: Send using raw ethernet frames or IP packets
--privileged: Assume that the user is fully privileged
--unprivileged: Assume the user lacks raw socket privileges
-V: Print version number
-h: Print this help summary page.