Find all ports in LAN Network computer using python

You can find all network ports which is used in LAN network using python. Below python code will provide the all ports number through host address.

Only you have to provide host IP address then it will check all ports which is open for host computer in LAN network.

#!/usr/bin/env python
import socket
import subprocess
import sys
from datetime import datetime
 
# Clear the screen
subprocess.call('clear', shell=True)
 
# Ask for input
remoteServer    = raw_input("Enter a remote host to scan: ")
remoteServerIP  = socket.gethostbyname(remoteServer)
 
# Print a nice banner with information on which host we are about to scan
print "-" * 60
print "Please wait, scanning remote host", remoteServerIP
print "-" * 60
 
# Check what time the scan started
t1 = datetime.now()
 
# Using the range function to specify ports (here it will scans all ports between 1 and 1024)
 
# We also put in some error handling for catching errors
 
try:
    for port in range(1,1025): 
        sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        result = sock.connect_ex((remoteServerIP, port))
        if result == 0:
            print "Port {}: \t Open".format(port)
        sock.close()
 
except KeyboardInterrupt:
    print "You pressed Ctrl+C"
    sys.exit()
 
except socket.gaierror:
    print 'Hostname could not be resolved. Exiting'
    sys.exit()
 
except socket.error:
    print "Couldn't connect to server"
    sys.exit()
 
# Checking the time again
t2 = datetime.now()
 
# Calculates the difference of time, to see how long it took to run the script
total =  t2 - t1
 
# Printing the information to screen
print 'Scanning Completed in: ', total

Output of run program:

Enter a remote host to scan: 192.168.1.11

------------------------------------------------------------

Please wait, scanning remote host 192.168.1.11

------------------------------------------------------------

Port 135:               Open

Port 139:               Open

Port 445:               Open

Scanning Completed in network.

Thanks guys.