nmap is a free, open source, scriptable network security scanner. It features port scanning and service/version detection.

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Is it possible to find the host name (Computer name) in my LAN network if I know its IP address? [duplicate]

I want to know whether this can be achieved using terminal. I have tried nmap, nslookup and netstat, and failed.
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Difference between ssl/https and plain https in nmap output

I'm trying to analyze the behavior of IPs that operate as free WiFi hotspots. nmap -sV reports the following for two different hosts: PORT STATE SERVICE VERSION 443/tcp open ...
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Shell Script Problem

I decided to make a shell script for basic nmap scanning so I did it like this : #!/bin/bash sudo apt-get install nmap printf "enter the name of site to do basic scan on >>>" read NAME ...
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how to stop services from autostart which runs on port 902, 3128?

am using ubuntu 14.04. given below my nmap result, nmap -sV -n 192.168.1.7 Starting Nmap 6.40 ( http://nmap.org ) at 2014-08-21 22:12 IST Stats: 0:00:01 elapsed; 0 hosts completed (1 up), 1 ...
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Live host on network is masked in some way or its changing it's ip?

OVERVIEW: My professor runs some kind of live Ubuntu OS image on top of the classroom computer he uses to lecture then portals into his linux box located in his office. He has informed me his ...
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nmap remote server

How do I scan through an external servers IP range to get hold of all the machines, for basic hostname and IP information from my own local machine? We have all access to the external servers as it's ...
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38 views

Nmap ICMP Request with IP Options

Just need to put the "router alert" option in a Ping Request. Router Alert is 0x94040000 at the end of the IP header. This is what I've tried (and a lot of other variations): sudo nmap -sU -PE ...
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How to list servers running in Ubuntu machine along with their port numbers?

Among some other servers installed in my Ubuntu system, one is the dictd server. The documentation says it uses port 2628. Running sudo nmap 192.168.1.74 -p 0-9000 results in: Nmap scan report ...
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how to install nmap in ubuntu 12;04 [duplicate]

Hi every one I am new to Ubuntu before I was using the backtrack 5 r3 in which every thing was installed but when I came to Ubuntu I get confused every thing is change please some body give me little ...
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191 views

using nmap for information regarding web host

am trying to get info of host run in linux about open/closed port the host is attacked randomly by hackers changing the content of the page.deleting files,homepage content changed. how can it be ...
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54 views

Different scans result for source ports in NMAP [closed]

I have a question about nmap scanning . I have noticed that when performing a syn scan with nmap -sS , my source port is always the same ,but when performing a full tcp connect scan -sT the source ...
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367 views

nmap in ubuntu 13.10

idk wheather to post such a silly question in this forum.just out of interest i want to know few things. can i use nmap in ubuntu 13.10 is backtrack another distro like ubuntu i have heard that ...
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Connection on interesting ports (25, 110 etc) is NOT refused. Who/what accepted it?

I am running a VPS with Ubuntu 12.04. The only payload is reachable for me via SSH at port 2244, all fine. Running a scan from outside (angryip), I see that quite some ports are responsive ...
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nmap(6.40) xml output not showing ports, only os

so im trying to get an inventory list of my home network (just for fun at first) i chose this simple nmap scan for starters: sudo nmap -oX Homscan.xml -v -r 192.168.1.100-110 192.168.1.150 when ...
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2answers
166 views

Pipe Viewer with Nmap (progress bar)

I would like to know if there is a way to use "pipe viewer" with "Nmap" together. Example: pv | Nmap -sP 192.168.1.0/24 But I couldn't get the progress bar working properly. I mean it should be ...
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1answer
2k views

help installing nmap 6.40 on 12.04

im trying to install i tried following the instructions in the nmap site by doing this: bzip2 -cd nmap-6.40.tar.bz2 | tar xvf - cd nmap-6.40 ./configure make su root make install and it all works ...
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Another nmap question

Okay so I've recently learned how to run an entire network scan using nmap to find all the devices currently connected to the network that you're connected to. So my next question is can you scan a ...
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716 views

Nmap scanning entire network?

Okay so I'm not really sure if this is even possible, but I need to know if there is a way to scan an entire network using nmap instead of a specific IP. Basically what I want to do is scan my ...
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529 views

Why does nmap show Tor on Ubuntu

When I run nmap from my Ubuntu workstation Tor ports are shown (as closed) on our server. Starting Nmap 5.21 ( http://nmap.org ) at 2013-03-12 10:22 CDT Nmap scan report for xx.xx.xx.xx Host is up ...
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252 views

How do I format the output of nmap to display on conky?

I want to add to the network section of conky a list of all hosts and ips for my network. However I do not know how to format the output in a way I like. I want Live Hosts However this is on the ...
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9k views

How to open port 21?

I installed vsftpd in my Linux Server 12.04. Unfortunately my firewall closed port 20 and 21. So I used the commands found here and other commands to open my ports. But I tested with nmap and I saw ...
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IPv4 Address Sharing Issue? Trying to map IPv4 address from host OS to BT5 VM [closed]

I'm having a general networking issue in regards to my Backtrack 5 (x64) KDE VM in VirtualBox. The VM appears to be on a separate subnet, but for my purposes, I'd like to include the VM in the private ...
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141 views

Connection problems between Access Point and Ubuntu

I have an access point already configured (with another AP and it's 3 IP cameras) and I can get in with a WinXP laptop (by AP's IP address) who is wired connected, directly to the AP. Now, I want to ...
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1k views

Launcher for Zenmap (or nmapfe) as SUDO

I've installed nmap, and also nmapFE. By default these are NOT set up to run as root; however, the tasks I need to run require it. I am able to run sudo nmapfe from terminal; however, if I create a ...
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Vulnerability Scanner, nmap vs Nessus

I need a good vulnerability auditing tool for Ubuntu so I decided to try nmap I also recalled that there was a product that can do this kind of work called Nessus it is no longer available in the ...