Re: DNS name resolution issue with nmap on windows

[Guru Prateek Pinnadhari <guruprateek89 () gmail com>]

Hi Henri,

If you notice the command I've used, you see that I've used the -R switch,

The command I use is :  nmap -sn -R x.x.x.x/24

Guru


On Sun, Sep 29, 2013 at 6:50 AM, Henri Doreau <henri.doreau () gmail com>wrote:

> 2013/9/10 Guru Prateek Pinnadhari <guruprateek89 () gmail com>:
> > Im using the command "nmap -sn -R x.x.x.x/24" to get a list of all host
> up
> > in the network.
> >
> >
> > While it works fine on a linux machine including DNS names, I observe the
> > following on a windows :
> > (command modified a little to explain the issue)
> >
> > DNS name resolution skips hosts here and there ( usually all alternate
> host
> > names are dropped)
> >
> >
> >
> > [image: Inline image 1]
> >
> >
> > Any idea why this happens or is there a workaround?
> >
> > Thanks!
> > Guru
> Hi,
>
> I don't think it's a defect. Use -R if you want DNS resolution to be
> always done, -n to disable it (as man said, default is "sometimes").
>
> Regards
>
> --
> Henri
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