find ip on local network with a gnu/linux tool

[delcencen]

with a debian :
root@localhost:/home/user# man ifconfig
No manual entry for ifconfig
root@localhost:/home/user# ip r
root@localhost:/home/user#

the nas work perfectly with windows at 169.254.100.100 !

[GarryRicketson]

the nas work perfectly with windows at 169.254.100.100 !

Yes, but this is Debian, not windows, or is it Kali,? .... what OS are you really
using ?

The OP needs to look at the specifics for "kali", especially on configureing the net works. Kali is not Debian, but that does explain why :

root@kali:~# man ifconfig
root@kali:~# man ifconfing -v

Apparently it is not just Kali, but also the newer Debian versions, in fact they blame Debian, but any way, you need to install : "net-tools"
https://forums.kali.org/showthread.php?36392-bash-ifconfig-command-not-found!!!

sudo apt install net-tools

should solve the problem,
This would be better to ask about on the kali forums.
Also:
https://docs.kali.org/introduction/should-i-use-kali-linux

[Segfault]

the nas work perfectly with windows at 169.254.100.100

^^ This, ladies and germs, is BS. Windows or Kali, networking standards are the same and this is not a valid private IP address, nor is it a valid public address. It is an IP address assigned by DHCP client when network is screwed up (local link address). IMHO this is another wannabe hacker who has no business running Kali, these are networking basics we are talking here.

[Ardouos]

root@kali:~# man ifconfig
root@kali:~# man ifconfing -v
No manual entry for ifconfing
No manual entry for -v
root@kali:~# ip r
root@kali:~# nmap 169.254.100.100

Kali is not Debian, it is a distro for professional pen testing on a live medium. For assistance with Kali please use the Kali forums.

[delcencen]

my nas is not compatible with linux