Nmap (Network Mapper) is a security scanner originally written by Gordon Lyon (also known by his pseudonym Fyodor Vaskovich) used to discover hosts and services on a computer network, thus creating a "map" of the network.
Questions tagged [nmap]
255 questions
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Running nmap over vpn on Mac OS X 10.7 Lion fails
When connected to VPN (I have used OpenVPN and TunnelBear VPN service) nmap stops working. Ping, nc and other network tools work however nmap doesnt.
When not running vpn, I get:
$ sudo nmap 8.8.8.8
Starting Nmap 5.51 ( http://nmap.org ) at…
wickett
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Process killing trouble
I am trying to program a server software which involves a lot of testing on java / scala platform. Whenever i compile and execute the code. It starts listening on port 80. Sometimes i need to terminate it by Ctrl+C when it hangs. In that case,…
Aditya Singh
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Cannot connect from Linux to SQL Server through a firewall
I need to connect from a Debian GNU/Linux webserver to an SQL Server database which is hosted on a Windows machine within an organization's local network.
The person in charge of the database server and the person in charge of the firewall both say…
Alex Marandon
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Nmap reporting incorrect results from an idle scan
I have a VPS that I was scanning to make sure everything is in check. A regular SYN scan reports that ports 25 and 80 are open (which they should be). When I run an idle scan however, I get back that all 1000 ports scanned are closed|filtered. I…
Aaron
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Is Telnet Port Open For The Range IP?
I want to port scanning on telnet port in a range ip .
for ex: i want to know is the 23 port open on 127.0.0.1/255 ?
what am i going to do ? is there a option for Nmap to do this ?
Thanks .
Jessica
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Does nmap work with ipv6?
Does nmap work with ipv6? I don't even really know if ports are handled in the same way on ipv6 so I just wondered.
leeand00
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Command or utility to measure the amount of traffic generated by an nmap scan
First, just a bit of background:
My ISP has decided to block all inbound connections (from their customers' perspective) which effectively means that I can no longer host anything on my connection (FTP, HTTP etc.) or use any of a number of programs…
Xhantar
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different nmap results
I have a scan on my server form outside and from inside, why results are different?
[root@xxx ~]# nmap -sV -p 0-65535 localhost
Starting Nmap 5.51 ( http://nmap.org ) at 2011-02-16 07:59 MSK
Nmap scan report for localhost (127.0.0.1)
Host is up…
aasasas
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How to use nmap to ping domains and get the output as domains and not IPs?
I am trying to use nmap to ping a list of domains, i am using:
nmap -sP -iL /path/to/file/domains
The ping works fine but in the output for domains that ping was successful I get the domains ip like this:
Host 66.249.92.104 is up (0.55s…
netrev
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How can I use nmap against an IPoIB network?
I'm trying to use nmap to check which services are running on a given network but it cannot start just because nmap issues ARP Ping Scans on IPv4 network, and on a Infiniband Network, as far as I know, there's no ARP, because broadcasting is not…
Vinícius Ferrão
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Nmap - Print names from virtual hosts
I'm trying to identify virtual hosts with Nmap, command:
nmap --script http-vhosts -p80 {ip}
Nmap identifies a number of hosts. But how do I get the actual host names that are found? Now nmap only prints "128 names had status 200".
AsusT9
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nmap not detecting clearly open udp port
I've opened port 4000 on my local machine as follows:
nc -lvup 4000
and then attempted to connected to the same port as follows:
nc -vu 127.0.0.1 4000
and was able to successfully connect and send and receive text back and forth.
However when I…
Teererai Marange
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Scanning a range of ports with Ncat?
I'm aware that Nmap is the obvious choice for this task, however I would still like to know if it's possible to scan a range of ports with Ncat.
I see that I'm able to scan one port, but with a range of ports I get an error.
With traditional Netcat…
Ed Shway
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Nmap results incorrect when connecting via VPN
I am trying to determine why my nmap results are incorrect when I am connected to a VPN provider.
As you can see below nmap reports that ports are open when connecting to a VPN provider even though the host has no open ports.
Here's an example:
No…
A_B
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Run nmap in a Docker container as a non-admin user
I'd like to run the Nmap tool in a Docker container but not with the default root user account. I already set the (hopefully) right capabilities via setcap.
Unfortunately, I get only the "operation not permitted" error when I try to run it.
This is…
Johannes
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