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Those who have to deal with network security or do periodic UNIX / Windows server security audits know well Nmap (Network Mapper).
NMAP is the swiss army knife tool of choice of both crackers and security exports and it is a must have exploration tool.
For those who just heard of Nmap or want to learn more on Nmap basics, I recommend my previos articles how to check Windows / Linux host port security (by examples) and test a local network for open Windows shares.
Nmap is one of the most improtant tools for every cracker (white, grey black hat "hacker"). Nmap is a legendary hack tool and probably the prevelent networt security port scanner tool over the last 10 years on all major Operating Systems. Nmap's high portability is thanks to being open source, being ported so far for:
Window – Zen, Mac OS and Linux, FreeBSD, OpenBSD, NetBSD and even obscure proprietary operating systems like Hewlett Packard's UNIX – HP-UX, Sun Microsystems's UNIX variant Solaris. It is in an interesting fact to mention probably not much known Sun Solaris's core code base is based on Berkley's BSD 4.4 whose fork nowadays give birth to FreeBSD and rest of *BSD family OSes.
Nmap evolved a lot through the last 7 years from only having a command line interface for hardcode console geeks like me to having a nice shiny GUI frontendinterface ZenMap.
Nmap is popular for being one of the hack tools in the famous move The Matrix (II) – Reloaded.
Ashacking and security penetration is quickly moving from PC Desktops and Notebooks to more mobile and stealth variants with recent boom of smartphones – it is no strange that Nmap got ported to the most wide-spread (and very Linux compatible) –Android OS under the name ANmap (Android Map).
By the way using your android device to scan your own Android device on localhost (just like on above screenshot), could be quite helpful and often could reveal some unwated services, run by malware or viruses application.
To get full use of ANmap's full functionality (Stealth Scan, Full version and port scan etc.) just like on other operating systems ANmap has to run with super user privileges .
To be able to run applications with Super user access on Android you need to have ROOTED ANDROID (Tablet / Phone) device – rooting android is just a simply hack that makes Android OS to run certain applciations with root (administrator privileges). Usually Rooting a device breaks ups vendor (reseller) guarantees, so if you root your device to run ANmap on it be very careful to which application you give access to run as super user!
As Anmap page reads: There are some little bugs, as domain names resolving and unroot scanning.
Than connect to localhost via ConnectBot, untar and start scanning:
$ tar -xvf nmap-5.51-1.tar
# ./nmap 127.0.0.1
Happy scanning 🙂