DNS lookup for IP address range

Hi,

I'd like to ask whether there is some common way/utility used if I need to
get DNS lookup for IP address range? Let's say I want to get DNS hostnames
for IP address range 192.168.1.1-192.168.1.255. Now I am using nmap
for this purpose but its not ideal at least with the parameters which I am
using: # nmap -sP -R 192.168.1.1-192.168.1.1-255 . With this nmap sends
ping to all hosts from the range but I don't actually care whether nodes are
up or down - I only want to "dump" part of DNS information so this nmap solution
is too heavy.

Thanks,
P.

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