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Replace network address with host address in python


Replace network address with host address in python

By : Charlie Neil
Date : November 20 2020, 11:01 PM
wish of those help The netaddr is one of the best ways to do this:
code :
import netaddr

with open('file.txt') as f:
    for line in f:
        try:
            ip_network = netaddr.IPNetwork(line.strip())
        except netaddr.AddrFormatError:
            # Not an IP address or subnet!
            continue
        else:
            for ip_addr in ip_network:
                print ip_addr
10.0.0.1
192.168.0.230
192.168.1.0/29
10.0.0.1
192.168.0.230
192.168.1.0
192.168.1.1
192.168.1.2
192.168.1.3
192.168.1.4
192.168.1.5
192.168.1.6
192.168.1.7


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Python - Get computer's IP address and host name on network running same application

Python - Get computer's IP address and host name on network running same application


By : Murali G
Date : March 29 2020, 07:55 AM
seems to work fine If you want to get the IP address of the host on which the python script is running, then the answer provided by user2096338 is the way to go.
In order to discover all the computers on a network within a LAN you can use scapy. https://github.com/bwaldvogel/neighbourhood/blob/master/neighbourhood.py is a link that I found while browsing a similar SO question; which discovers all computers within a network (LAN).
Getting the host ID and network ID from an IP address

Getting the host ID and network ID from an IP address


By : Hristian Hristov
Date : March 29 2020, 07:55 AM
like below fixes the issue To the outside "internet", your IP address is just the IP of your router, provided by your ISP. Within your home network, you have a set of private addresses assigned by your router. The way that programs know to communicate with the correct device is usually through a custom reply-to port that the router re-assigns to packets from each device. This is called NAT.
For example, if you are browsing on port 80 from your tablet and your laptop at the same time, your reply-to port may be set to 3245 for the tablet and 3246 for the laptop. When the router receives a packet going from port 80 to port 3245, it changes 3245 to 80 and sends it to your tablet. If the port is 3246, it sends it to your laptop instead. The key point here is that the website you are communicating only knows the IP of your home router. As far as those sites are concerned, there are no other devices.
How does a browser distinguish whether the address in the address bar is an IP address or a Host name?

How does a browser distinguish whether the address in the address bar is an IP address or a Host name?


By : Clara Renault
Date : March 29 2020, 07:55 AM
I wish this help you "There is an additional rule that essentially requires that top-level domain names not be all-numeric." http://en.wikipedia.org/wiki/Domain_Name_System#Domain_name_syntax
So if 123.456.7.8 was a domain name, the TLD would be "8", which is not acceptable because it is numeric.
Get host name from IP address on network using JAVA

Get host name from IP address on network using JAVA


By : user2966543
Date : March 29 2020, 07:55 AM
I hope this helps you . You're not missing anything in the code,but,the source of error is the security manager/firewall of the called system.
The Oracle docs for the InetAddress.getCanonicalHostname() states that :-
How to get the next network address given the starting network address in python

How to get the next network address given the starting network address in python


By : Kibbley
Date : March 29 2020, 07:55 AM
To fix this issue The library ipcalc has routines to make math on ip addresses fairly easy. As an example an iterator to get the next network range address can be done like:
Code:
code :
import ipcalc
import itertools as it

network = ipcalc.Network('10.1.0.0/16')
network_addrs = (network + (i + 1) * network.size() for i in it.count())
print(next(network_addrs))
print(next(network_addrs))
print(next(network_addrs))
10.2.0.0/16
10.3.0.0/16
10.4.0.0/16
import ipaddress

class BetterIPv4Network(ipaddress.IPv4Network):

    def __add__(self, offset):
        """Add numeric offset to the IP."""
        new_base_addr = int(self.network_address) + offset
        return self.__class__((new_base_addr, str(self.netmask)))

    def size(self):
        """Return network size."""
        start = int(self.network_address)
        return int(self.broadcast_address) + 1 - start
import itertools as it

network = BetterIPv4Network(u'10.1.0.0/16')
network_addrs = (network + (i + 1) * network.size() for i in it.count())
class BetterIPv4Network(ipaddress.IPv4Network):

    def __add__(self, offset):
        """Add numeric offset to the IP."""
        new_base_addr = int(self.network_address) + offset
        new_base_addr_str = str(self.__class__(new_base_addr)).split('/')[0]
        return self.__class__(new_base_addr_str + '/' + str(self.netmask))

    def size(self):
        """Return network size."""
        start = int(self.network_address)
        return int(self.broadcast_address) + 1 - start
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