Find computer names on a private network (with nmap?)

Posted by paracaudex on Super User See other posts from Super User or by paracaudex
Published on 2011-11-16T17:08:57Z Indexed on 2011/11/16 17:57 UTC
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networking

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nmap

On a LAN, I want to find out the names of all the connected computers using a cross-platform program, preferably nmap. I know I can do

nmap -sn xxx.xxx.xxx.xxx/24

(where xxx.xxx.xxx.xxx is a local IP address) to find hosts which are up, but how do I find the computers' hostnames? Do they broadcast this in a way that I can find using nmap?

UPDATE: It looks like Angry IP Scanner can do this. How does it do this? Can I replicate it with nmap?

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