Python KeyError scanning list of hosts for open ports

Python KeyError scanning list of hosts for open ports

By : user2950128
Date : November 17 2020, 11:52 AM
I wish this help you I have a list of my ip's in my python script, and I'm trying to run a nmap scan on each of them to find open ports. I keep getting this error: , Like this, based on your code:
code :
for item in L:
    if item in nm.all_hosts():
        for port in nm[item].all_tcp():
            state = nm[item]['tcp'][port]['state']
            if state == 'open':
                print state
items = list(set(L) & set(nm.all_hosts()))

for item in items:
    for port in nm[item].all_tcp():
        state = nm[item]['tcp'][port]['state']
        if state == 'open':
            print state

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Instead of scanning multiple ports I'm scanning only one and when port is closed my app closes

Instead of scanning multiple ports I'm scanning only one and when port is closed my app closes

By : phani kumar vadlaman
Date : March 29 2020, 07:55 AM
Any of those help In your callback method, I would make sure close the connection and dispose of the TcpClient. Also TcpClient.EndConnect(IAsyncResult) can also throw exceptions. I also do not see where capturing the port number for display to the user. I would write the callback something like this.
Edit: I didn't actually compile or execute my code (sorry). I also found this other article that shows how to create a port scanner in C#, http://www.dijksterhuis.org/building-a-simple-portscanner-in-c/ There is a comment in this post stating,
code :
private void CallBack(IAsyncResult result) 
    var client = (TcpClient)result.AsyncState; 
    bool connected = false;

        connected = client.Connected;
    catch (SocketException)
    catch (ObjectDisposedException)
        if (client.Connected)


    if (connected) 
            txtDisplay.Text += "open2" + Environment.NewLine; 
            txtDisplay.Text += "closed2" + Environment.NewLine; 
Scanning ports on non local hosts

Scanning ports on non local hosts

By : struzzo
Date : March 29 2020, 07:55 AM
around this issue try to set a timeout on a socket. It will fail faster.
connection.setSoTimeout(10*1000); // milliseconds
How do I connect external ports on applications running on different hosts using python?

How do I connect external ports on applications running on different hosts using python?

By : Анна Васьковська
Date : March 29 2020, 07:55 AM
To fix the issue you can do I'm going to use docker to emulate your environment. Hopefully I understood your situation correctly. I have 3 machines. A, B, and C. A and B each have their own domain, GPP, and running waveform. In my case A and B are docker containers. C will be used to reach out and interact with A and B making the connections.
These images are public so feel free to follow along if you have docker installed.
code :
# Launch our 2.0.2 container
[ylb@axios]$docker run -it --rm axios/redhawk:2.0.2 bash -l

# Install a test waveform
[redhawk@6b0701e76e74 ~]$ sudo yum install -y rh.FM_mono_demo

# Start the omni services
[redhawk@6b0701e76e74 ~]$ sudo $OSSIEHOME/bin/cleanomni

# Start domain and dev manager
[redhawk@6b0701e76e74 ~]$ nodeBooter --daemon -D
[redhawk@6b0701e76e74 ~]$ nodeBooter --daemon -d $SDRROOT/dev/nodes/DevMgr_12ef887a9000/DeviceManager.dcd.xml

# Launch the waveform via python
[redhawk@6b0701e76e74 ~]$ python
>>> from ossie.utils import redhawk
>>> dom = redhawk.attach()
>>> app = dom.createApplication('/waveforms/rh/FM_mono_demo/FM_mono_demo.sad.xml')
>>> from ossie.utils import redhawk
>>> dom1 = redhawk.attach('REDHAWK_DEV', '')
>>> dom2 = redhawk.attach('REDHAWK_DEV', '')
>>> app1 = dom1.apps[0]
>>> app2 = dom2.apps[0]
>>> app1.comps[0].name
>>> tfd1 = app1.comps[0]
>>> app2.comps[1].name
>>> psd2 = app2.comps[1]
>>> tfd1.connect(psd2)
how to exclude Hosts from IP range from scanning inside nmap python script

how to exclude Hosts from IP range from scanning inside nmap python script

By : Kirsh K
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further would appreciate your advice how to exclude hosts from scanning inside the nm.scan().I have the following script which works perfectly when i enter the range : for example , I got it.Needed to put the arguments first:
code :
nm.scan(arguments='-sT --open --exclude X.X.X.X,X.X.X.X',hosts='X.X.X.0/24')
Why is my Port Scanner not scanning ports in Python?

Why is my Port Scanner not scanning ports in Python?

By : Uci Arahito Lubis
Date : March 29 2020, 07:55 AM
seems to work fine Found the solution. The problem that I was facing was, that the IP-adress was using a list function in which I needed it to convert it to a string in order to use s.connect_ex
code :
#!usr/bin/env python
import subprocess
import ipaddress
from socket import *

# Value to scan the network till
net_addr = ''

# Variables for the port numbers
portstart = 79
portend =  140

# Resolve hostname
host = gethostname()

# Creates the network
ip_net = ipaddress.ip_network(net_addr)

# Get all hosts in the network
all_hosts = list(ip_net.hosts())

# Configure subprocess to hide the console window
info = subprocess.STARTUPINFO()
info.dwFlags |= subprocess.STARTF_USESHOWWINDOW
info.wShowWindow = subprocess.SW_HIDE

# Loop where the IP-address is being pinged.
for i in range(len(all_hosts)):
    output = subprocess.Popen(['ping', '-n', '1', '-w', '500', str(all_hosts[i])], stdout=subprocess.PIPE,

    if "Destination host unreachable" in output.decode('utf-8'):
        print(str(all_hosts[i]), "is Offline")

    elif "Request timed out" in output.decode('utf-8'):
        print(str(all_hosts[i]), "is Offline")

        print(str(all_hosts[i]), "is ONLINE!")
        print ("The hostname of", all_hosts[i], "is:", host)
        print ("Starting scan on host: ", host, "(", all_hosts[i], ")")

# Loop where it scans ports within a range.
        for portnum in range (portstart, portend):
                s = socket(AF_INET, SOCK_STREAM)

                result = s.connect_ex((str(all_hosts[i]), portnum))

                if (result == 0):
                    print ("Port", portnum, "is OPEN!")

                    print("Port", portnum, "is closed")
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