Nmap - Host Discovery With Ping Sweep
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- เผยแพร่เมื่อ 24 พ.ค. 2020
- In this video, I demonstrate how to perform host discovery on a network with ping sweeps using Nmap. Nmap is a free and open-source network scanner created by Gordon Lyon. Nmap is used to discover hosts and services on a computer network by sending packets and analyzing the responses. Nmap provides a number of features for probing computer networks, including host discovery and service and operating system detection.
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Obrigado por assistir
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#Nmap - วิทยาศาสตร์และเทคโนโลยี
For TCP:
Open means a service is running (tcp syn ack received)
Closed means nmap got a tcp reset message (default behavior as indicated by rfc-whocares)
Filtered means the packet was dropped or responded with icmp port unreachable (non standard, indicates packet filtering or network issues)
For UDP:
Open means that the request got a response (uncommon, but you know something is running)
Open | Filtered means that you got no response (since udp doesn't respond typically nmap can't determine if the packet was dropped or got through)
Closed | Filtered means you got an icmp port unreachable (default response for non existing services, or perhaps firewall rule)
Fully explained everything. Thank you sir
Sir! Keep making more videos. I have learnt a lot.
Your Videos are 🔥 and we learn a lot from them 💕
your videos are helpful sir. keep making more. clearly explained
Don't use `-sn` without `sudo` otherwise it will scan 80, 443 ports to detect the host and if there is a firewall on the other end host will not be detected, and that method is slower for host detection
Tips to detect every host:
1. use sudo with `nmap -sn ` (uses ARP scan, which is fast as well)
2. use `nmap -sL | grep \)` (it will use rDNS lookup technique, so nmap don't send request to the host directly)
OR
use -Pn with -sn `nmap -Pn -sn | grep \)` (uses rDNS technique like -sL)
use --packet-trace with every command to see the packets.
For me only the ip address is shown not the host name. Example: Samsung-A32 all that stuff? How to resolve it?
Great video! Thank you!
I am learning from your videos
Keep the good work
A big shout to Hackerspoilt
There are very few real hacking channels on TH-cam your are one of those
relly appriciate ur work mate...💓
I have try to do my network scan but it's not showing name and the all users also ?
What should I do?
great video
Tnx !
Why when I use Nmap -sn it do not give Mac address?
So I guess I just have bad luck and I cannot get results with my home network. I have direct tv and their default router. But even if I use nmap on it. It won't tell me the manufacturer or any connected devices which blows when trying to learn tools by hacking my own equipment.
hello please I need help, I am a beginner in using nmap. I don't know what the problem is, if I try to scan an IP, it sends a message that host seems down, if it is really up, but blocking our ping probes, try -Pn. please what should I do to solve this?
What if the target is in on different network
Hey can you make vedio about connecting a wifi adaptor to virtual box
Sir u r great
Hey everyone.
*Smartphones in my network won't show during the scan.*
ANYONE HELP..
pretty gud sir...
i tried but "Failed to resolve/decode supposed IPv4 source address "n": Name or service not known
QUITTING!" this will arise
@HackerSploit - Question: How do you I perform a nmap sweep to identify live hosts in a network when all I have is an IPv6 address?
Nmap -6 [target ipv6 adress]
This is the command you may use to perform a default ipv6 port scan.
You can't scan multiple hosts in a single command as its pointless in this context.
So if you have to scan a network of systems and you only have their ipv6 addresses you may do that by creating a list of all ipv6 addresses you have and scanning them using the following command.
Nmap -6 -iL -sn list.txt
I havent worked on ipv6 either but i hope this helps, please let us know if this solves your porblem..
Peace
hi tkx for the video, but one question plz can we scan a network even if the firewall bloc the ports ? if yes how and can we bypass the firewall rules ?
exactly the same question I wanted to ask?
u can simply run nmap -T4 -p- -A (ip address)
Niice
Which operating system are you using? And what type of the cmd you have used??
Kali with terminal
How to use a port i would like to know how to
Scan your network find what ports are open
👍🏾👍🏾👍🏾
What vulnerable machine is he using is it metasploitable ??
Yh , n also meta 3 ~ win2008
There are lot of version and gui alternative of nmap
Zenmap being one
@@anshajkumar6542 correct
Can you make your text zoomed
It's so hard to view this on mobile
Sir please make videos about bugbounty haunting in hackerone. Com site
Sir,how to protect from hacking ?
Get a good antivirus, don't fall for phishing scams, get a VPN
LOL
Anymouse out
First again