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Re: DNS name resolution issue with nmap on windows
From: Guru Prateek Pinnadhari <guruprateek89 () gmail com>
Date: Sun, 29 Sep 2013 07:13:39 -0400

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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