Since Python 3.3 there is an ipaddress module in the stdlib that you can use. >>> import ipaddress >>> ipaddress.ip_address(‘192.168.0.1’).is_private True If using Python 2.6 or higher I would strongly recommend to use a backport of this module.
As far as I can see there is no standard method for getting the remote address of your local machine. If you need the remote address for (testing) your geocoding, I suggest adding 127.0.0.1 to your database table that matches IP addresses with locations. As a last resort you could also hard code your remote … Read more
Use the netifaces module. Because networking is complex, using netifaces can be a little tricky, but here’s how to do what you want: >>> import netifaces >>> netifaces.interfaces() [‘lo’, ‘eth0’] >>> netifaces.ifaddresses(‘eth0’) {17: [{‘broadcast’: ‘ff:ff:ff:ff:ff:ff’, ‘addr’: ’00:11:2f:32:63:45′}], 2: [{‘broadcast’: ‘10.0.0.255’, ‘netmask’: ‘255.255.255.0’, ‘addr’: ‘10.0.0.2’}], 10: [{‘netmask’: ‘ffff:ffff:ffff:ffff::’, ‘addr’: ‘fe80::211:2fff:fe32:6345%eth0’}]} >>> for interface in netifaces.interfaces(): … … Read more
Since IPv4 addresses are 4 byte long, you could use an INT (UNSIGNED) that has exactly 4 bytes: `ipv4` INT UNSIGNED And INET_ATON and INET_NTOA to convert them: INSERT INTO `table` (`ipv4`) VALUES (INET_ATON(“127.0.0.1”)); SELECT INET_NTOA(`ipv4`) FROM `table`; For IPv6 addresses you could use a BINARY instead: `ipv6` BINARY(16) And use PHP’s inet_pton and inet_ntop … Read more
To answer the question with Python depends on your platform. I don’t have Windows handy, so the following solution works on the Linux box I wrote it on. A small change to the regular expression will make it work in OS X. First, you must ping the target. That will place the target — as … Read more
No you can’t – IP addresses get reallocated and reassigned from time to time, so the mapping of IP to location will also change over time. If you want to find out the location that an IP address currently maps to you can either download a geolocation database, such as GeoLite from MaxMind, or use … Read more
From Jacob, Heroku’s Director of Security at the time: The router doesn’t overwrite X-Forwarded-For, but it does guarantee that the real origin will always be the last item in the list. This means that, if you access a Heroku app in the normal way, you will just see your IP address in the X-Forwarded-For header: … Read more
Take a look at IP Address Calculations with C# on MSDN blogs. It contains an extension method (IsInSameSubnet) that should meet your needs as well as some other goodies. public static class IPAddressExtensions { public static IPAddress GetBroadcastAddress(this IPAddress address, IPAddress subnetMask) { byte[] ipAdressBytes = address.GetAddressBytes(); byte[] subnetMaskBytes = subnetMask.GetAddressBytes(); if (ipAdressBytes.Length != subnetMaskBytes.Length) … Read more
For IPv4 addresses, you may want to store them as an int unsigned and use the INET_ATON() and INET_NTOA() functions to return the IP address from its numeric value, and vice versa. Example: SELECT INET_ATON(‘127.0.0.1’); +————————+ | INET_ATON(‘127.0.0.1’) | +————————+ | 2130706433 | +————————+ 1 row in set (0.00 sec) SELECT INET_NTOA(‘2130706433’); +————————-+ | INET_NTOA(‘2130706433’) … Read more
String to int: int pack(byte[] bytes) { int val = 0; for (int i = 0; i < bytes.length; i++) { val <<= 8; val |= bytes[i] & 0xff; } return val; } pack(InetAddress.getByName(dottedString).getAddress()); Int to string: byte[] unpack(int bytes) { return new byte[] { (byte)((bytes >>> 24) & 0xff), (byte)((bytes >>> 16) & 0xff), … Read more