Re: Implementing Nmap within a Java Program

["Supratim Sarkar" <supratimsarkar () gmail com>]

Thanks for the reply Kris
About the nmap scan I am doing it only on 2 hosts. The same scan running
directly from command prompt takes around 80-90 sec ..but when I do the
execution from JAVA the XML file is not complete even after 10 min or so. In
fact the nmap process has to be killed from task manager to be able to go
forward in my java program.

As of the choice of Java..this I cant avoid now as almost all parts of the
program has been coded in it.

What I am asking for here is there anything specific in nmap that java
should take care of befor trying to execute nmap.

Regards,
Supratim

On Fri, May 30, 2008 at 3:46 AM, Kris Katterjohn <katterjohn () gmail com>
wrote:

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> Supratim Sarkar wrote:
> > Hi everybody,
> >
> > Cheers to Fyodor first for having created such a freat tool.
> >
> > Now I was trying to develop a Scanner/Asset Management kind of tool with
> > nmap. I started on with java.(JDK 1.6) Platform is Win XP Pro.
>
> Hi.  There are Nmap wrappers in several scripting languages (Perl, Python,
> Ruby, etc) which you may be interested in using instead, unless you really
> need to use Java.  But on to your problem..
>
> > The nmap cmd string is something like this :
> >
> > nmap.exe -sSU -pT:*,U:53,67,161 -sV --version-light -T4-v -P0 -n -PU -oX
> > data.xml xx.xx.xx.xx-xx
> >
> > The cmd1 string looks like
> >
> > NETSCAN.exe "nmap.exe -sT -pT:*,U:53,67,161 -sV --version-light -T4-v -P0
> -n
> > -PU -oX dataone.xml xx.xx.xx.xx-xx"
> ===================================================================================================================
> > Now the thing is that the nmap program starts as I can checkout by
> running
> > task manager and that the xml file is also generated. But it keeps going
> on
> > and does not terminate.Its like nmap hangs somewhere in the middle of the
> > scan
>
> Are you sure that Nmap isn't just taking a while to scan?  Is the generated
> XML file complete?  You're not explicit enough here :)
>
> You're scanning 1200+ TCP ports, some UDP ports, AND you're doing a service
> scan (albeit light), ALL against multiple hosts.  Have you tried something
> smaller like one port on one host to rule this out?
>
> I'm also not familiar with process creation/execution under Java, so there
> may
> be an issue there I'm unaware of.
>
> > It would be of great help if someone can help me out with this
> >
> > Thanks,
> >
> > Supratim
>
> Thanks,
> Kris Katterjohn
>
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