a free and open-source port scanner, operating system fingerprinter, and service fingerprinter

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5
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1answer
242 views

Why Nmap fragmented scan on Linux is only working from virtual environment?

OLD QUESTION AND TITLE (Look further down for the updated question): Why Nmap fragmented scan is only working on Backtrack? I spent quite a few hours today trying to capture and study some ...
3
votes
1answer
77 views

Difference between ssl/https and plain https in nmap output

I'm trying to analyze the behavior of an IP that works as free WiFi access point. nmap with parameter (-sV) reports the following for two different measurements: PORT STATE SERVICE VERSION 443/tcp ...
2
votes
1answer
380 views

nmap won't recognize a hostname on my local area network

Scanning the machine on the LAN with my laptop, I got this: gabriele @ osiris { ~ } [ Tue Oct 07 ] [ 08:49 PM] nmap -sP 192.168.1.236 Starting Nmap 6.40 ( http://nmap.org ) at 2014-10-07 20:50 CEST ...
1
vote
1answer
37 views

How does FING (or any of the IP/MAC Address Mappers) work?

Per this comment, I am going to take advice and ask this as a separate question. I am trying to learn more about networking and security and want to play with tools to help increase my understanding. ...
1
vote
1answer
346 views

masscan. how to configure Linux?

I've set this in my sysctl.conf: net.netfilter.nf_conntrack_max=268435456 Because, this border 16,777,216 achieved very quick. Also, I've decrease timeouts: net.ipv4.tcp_fin_timeout = 30 ...
1
vote
1answer
692 views

How to see interactive output when running nmap from a bash script?

I'm trying to run nmap from a Bash script, in a way so that when Enter is pressed it should give some output, as happens when running directly from the commandline. When calling a few different nmap ...
0
votes
1answer
38 views

Ubuntu, lua, nmap and sqlite3 - module 'luasql.sqlite3' not found

I need to work with nmap and sqlite3 and I installed lua 5.1 and lua-sql-sqlite3 on an ubuntu machine: sudo apt-get install lua5.1; sudo apt-get install lua-sql-sqlite3 Now, when I'm doing this: $ ...
0
votes
1answer
52 views

How to “open” on a “filtered” port

I am running: $ ssh user@ip_address and waiting for long time without response. I try to verify the status of my port: $ a=`nmap ip_address -PN -p ssh | grep filtered` $ echo $a 22/tcp ...
0
votes
1answer
21 views

Value of nmap option

I've found in some docs of port knocking, that it is used the option --host-timeout I don't understand why is 201 assigned to it? e.g.: nmap -Pn --host-timeout 201 --max-retries 0 -p 7000 ...
0
votes
1answer
50 views

Knowing the service that opens the port

I want to close unnecessary ports in debian 8.2. $ nmap localhost | grep open 25/tcp open smtp 631/tcp open ipp Searching the service that corresponds to smtp, $ lsof -i:25 $ sudo systemctl ...
3
votes
0answers
261 views

Why doesn't ufw enforce firewall rules for traffic coming from Virtualbox VM

I've been running Linux Mint 17 on my laptop for a while and thought I had it locked down to not allow any incoming traffic through "Firewall Configuration" (ufw GUI)—I have also validated this from ...
2
votes
0answers
27 views

why does nmap shows same ports sometimes as filtered and sometimes as closed?

When I'm scanning port range 4050-4060 of an smart metering device all ports are reported as closed: root@abc:~/rvm/dlms# nmap -p 4050-4060 192.168.1.242 Starting Nmap 6.47 ( http://nmap.org ) at ...
1
vote
0answers
22 views

How to proxy nmap and dns resolution of nmap

How to use nmap and dns resolution of nmap over proxy? I tried proxychains, but for dns resolution it doesn't work, it's known bug as I read on some forums. It works well without dns_proxy feature in ...
1
vote
0answers
1k views

Postgresql 9.1 - Kali Linux

I started to read this book : http://www.amazon.fr/Metasploit-The-Penetration-Testers-Guide/dp/159327288X And I have some trouble with postgresql 9.1 (in Kali Linux). When I start msfconsole, I ...
1
vote
0answers
1k views

Using nmap's sql-injection script to scan a specific web folder

I'm fairly new to linux and nmap. I'm using debian squeeze. I tried installing an SQL-injection script for nmap. I was able to successfully run a test scan agains my web server running Windows. ...
0
votes
0answers
13 views

Dynamic port scanning

I know how to do a "static" port scan with nmap, however while I have certain processes running I would like to do a dynamic port scan to see what ports these processes open for assurance that the ...
0
votes
0answers
653 views

mass_dns: warning: Unable to determine any DNS servers. Reverse DNS is disabled

I'm using UBUNTU 14.04 as virtual machine on Windows using VMWARE , after logging I installed nmap but after trying to run nmap -sP 10.42.0.0 I get the following message mass_dns: warning: ...
0
votes
0answers
232 views

Can't find connected devices on wifi network

I've been having some issues with finding my devices on the network.. Ettercap & nmap and everything else I have tried does not find a host that is connected to my gateway? I have three devices; ...