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My network includes machines running Linux and others running Windows. And my machine is running Linux.

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The question is a bit unclear, which resulted in the varying - and good - answers below. Do you want to find the DNS name of a host? Do you want to find the WINS name? Do you want to search the network for all hosts found? All of these questions are answered - but the specific answer desired is unknown. – Mei Sep 29 '14 at 19:08

Type in terminal

arp -a

It will show all host name in LAN whether it is Linux or windows.

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This shows nothing on my local network that has 30+ Linux machines... – Cerin Apr 28 '14 at 16:41
@Cerin Are you on Linux machine yourself? – Shashank Sawant Jul 23 '14 at 3:50
On Ubuntu 14.04 this says: "? ( at 00:22:6b:f2:33:b3 [ether] on wlan0", giving me only info about my router (my laptop is connected to it via wifi, like about other 10 devices atm). Looking at man arp it says also "arp - manipulate the system ARP cache". How should this tool solve the original question? – gerlos Dec 25 '14 at 21:27
Same here on Ubuntu 14.04, this just lists a bunch of ? ( at ac:3a:7a:a4:01:d4 [ether] on eth0 – Elijah Lynn Feb 3 at 16:00

Type in terminal

sudo aptitude install nmap
nmap -sP

This will give you:

Starting Nmap 5.21 ( ) at 2012-11-03 19:08 CET
Nmap scan report for HOST.DOMAIN (
Host is up (0.00052s latency).
MAC Address: YY:YY:YY:YY:YY:YY (Manufactor)
Nmap done: 1 IP address (1 host up) scanned in 0.11 seconds

Where HOST.DOMAIN is the DNS-name of the machine.

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This shows all active IPs, but it only shows domains for machines which explicitly have custom domain configured in my local Bind server. It doesn't show any local hostnames, which I think is what the OP is trying to accomplish. – Cerin Apr 28 '14 at 17:11
this answer is very fast. – activedecay Feb 3 at 1:19

What if you try this:

You can run it in windows

nbtstat -A (where x is the ip address)

on ubuntu you can install nbtscan. You can find more information here :

Hope it helps

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Thanks very much, but it seems that nbtscan detects machines running Windows only. I've 2 machines running Windows and another 2 running Linux. It detects the two running Windows only. – Islam Hassan Apr 27 '12 at 20:55
can you try nmblookup? it should be installed already on Ubuntu – Brett Apr 27 '12 at 20:57
Sorry, I've read the tutorial but couldn't figure out how to write the command that solves my problem. I can't see options taking IP as input. Can you write the command for me please? – Islam Hassan Apr 27 '12 at 21:04
try nmblookup -A where x is the ip address of the machine. So I would do nmblookup -A and it would return the name of my machine. You will need to do that for each machine. – Brett Apr 27 '12 at 21:19
@Brett: (+1) you should convert your comment into an answer, as its the only method that worked for me (both windows and linux boxes). Thanks – lepe Jun 30 '15 at 3:40

To the best of my knowledge, there is no utility available to resolve an IP address into a NetBIOS name. I'd imagine that some sort of a network scoping program or a penetration testing program might be able to give you that sore of information though. However, all of the computers would have to be on the same domain and subnet.

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Could you name a program please? – Islam Hassan Apr 27 '12 at 20:45
The OP wants the opposite. e.g. IP->hostname – Cerin Apr 28 '14 at 16:48
I know this is old...and OP is using Linux, not Windows...but on Windows you can run nbtstat -A <IP Address> to get the NetBIOS name from just the IP. This works across subnets and there's no need to be in the same domain. Also, running nbtstat -a <NetBIOS Name> will do the reverse. Hope this helps... – John Homer Sep 10 '14 at 13:44

If your network is running a DHCP server, usually on the modem/router, chances are it will have a way for you to see the DHCP assigned addresses - often by a web page, and that often lists the computer names beside the allocated ip addresses.

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I'd just use


it will show me the host name (usually the computer name)

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This just gets me ** server can't find NXDOMAIN – Cerin Apr 28 '14 at 16:50
works for me :) – Jun 15 '15 at 7:57
nslookup does DNS searches, so for this to work you need the hosts to be registered in the DNS. If you have a regular Windows network, in a private IP range, without ActiveDirectory configured, it will not work. NetBios names, and DNS names are different beasts. – bogdan.mustiata Jun 9 at 10:16

protected by jokerdino Oct 4 '13 at 16:05

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