What is NMAP ?
HERES' THE SECRET
Nmap (
Network
Mapper) is a security scanner used to discover hosts and services
on a computer network
, thus creating a "map" of the network. To accomplish its goal, Nmap sends specially crafted packets
to the target host and then analyzes the responses. Unlike many simple
port scanners that just send packets at some predefined constant rate,
Nmap accounts for the network conditions during the run.
Nmap has been able
to extend its discovery capabilities beyond simply figuring out whether
a host is up or down and which ports are open and closed
NMAP can
determine the
operating system
of the target,
names and
versions of the listening services,
estimated up time,
type of device,
and presence of a FIREWALL.
Nmap runs on
Linux
,
Microsoft Windows
,
Solaris
,HP-UX
and
BSD
Linux is the most popular Nmap platform with Windows following it closely
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Hack WIFI with the GUI version in BACKTRACK =>
Click on me :))
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Features of NMAP
Nmap features include:
- Host Discovery – Identifying hosts on a network. For example, listing the hosts which respond to pings or have a particular port open.
- Port Scanning – Enumerating the open ports on one or more target hosts.
- Version Detection – Interrogating listening network services
listening on remote devices to determine the application name and
version number
- OS Detection – Remotely determining the operating system and some hardware characteristics of network devices.
- Scriptable interaction with the target – using Nmap Script Engine [WIKIPEDIA HELP]
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Make BACKDOOR help of BACKTRACK TERMINAL =>
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COMMANDS OF NMAP
Open ur konsole in backtrack and type all the commands and see their working and do connect to internet also :)
* type nmap and press enter :: to see all the commands of nmap
** Nnow how to
scan ips in range and to see how many are alive :: command is
nmap -sP 192.168.254.0/24
*** Now how to
scan ip in a specific range :: command is
nmap -sP 192.168.254.99-106
like we are scanning ip from 99 to 106
**** Now we will do
stealth scan to see
how many ports are open on the specific ip :: command is
nmap -sS 192.168.254.102 and press enter
***** Now to
find what operating system running on the ip address :: command is
nmap -O 192.168.254.102
****** Now to scan for
TCP connect :: command is
nmap -sT 192.168.254.102
******* Just a
null scan to check
wether ip is alive or not :: command is
nmap -sN 192.168.254.102
******** Now to
scan for UDP connect :: command is
nmap -sU 192.168.254.102
********** To scan for
IP Protocol :: command is
nmap -sO 192.168.254.102
*********** To check
ACKNOWLEGMENT (ACK) :: command is
nmap -sA 192.168.254.102
************* To scan for which
windows is running :: command is
nmap -sW 192.168.254.102
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