Nmap ("Network Mapper") is an open source tool for network exploration and security auditing.

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5
votes
2answers
7k views

Why would ping succeed but nmap fail?

Why does Nmap report "Host seems down" when a simple ping succeeds? me@computer:~$ ping 123.45.67.89 PING 123.45.67.89 (123.45.67.89) 56(84) bytes of data. 64 bytes from 123.45.67.89: icmp_req=1 ...
2
votes
2answers
1k views

Why is Nmap slow on my Windows 8.1 laptop?

Nmap is so slow as to be almost unusable on my Windows 8.1 laptop. I'm using Nmap 6.40 and it's taking more than a minute to run a simple check that runs in a fraction of a second on other computers ...
1
vote
1answer
5k views

Kali Linux Can't Find Any Computer On Network

I'm trying nmap and arp. When i'm execute "arp -a" only shows myhome.mynet ([my_ip]) at [MAC_ADDRESS] [ether] on wlan0 And when i'm trying to nmap [my_ip] it shows Starting Nmap 6.40 ( ...
0
votes
0answers
16 views

Can't get nmap info from Brainpan2

I'm trying to setup an environment in VirtualBox for exploiting Brainpan2 (from Vulnhub). I created 2 VMs (Brainpan2 and Kali) but when I try to perform an nmap -A scan on the other 3 IP addresses on ...
0
votes
1answer
4k views

How can I use a bash script to run nmap and capture both IP and hostname?

I want to scan my network; and return an output like this: Network Scan for 192.168.0.* 192.168.0.1 computer1 192.168.0.2 computer2 192.168.0.3 computer5 echo Network Scan nmap -sP -n ...