ipv4

Getting the private ip address of an Rook/Shiny page user

由 ℡╲_俬逩灬. 提交于 2019-12-08 15:26:37
问题 I have created some web app using Rook which listen to my network ip (192.168.xx.xx) at port 8000. Everyone inside my office can connect to them just typing http://192.168.xx.xx:8000/page_name in the browser. I need to monitor these pages usage and wonder how I can get the network ip address of those connected to them. I'm not experienced in web development and from the research done so far it seems that using client side code like JavaScript it's very difficult (almost impossible) to achieve

What are the primary differences between IPv4 and IPv6? [closed]

由 痞子三分冷 提交于 2019-12-08 13:22:19
问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 3 years ago . I understand that the pool of IP addresses has been increased (32bit to 128bit). Are there some other primary differences between the two? 回答1: IPv4 uses a 32-bit address scheme, allowing for 2^32 different addresses. IPv6 uses a 128-bit address scheme, allowing for 2^128 different addresses. The biggest

Both Dns.GetHostAddress and Dns.GetHostEntry return only ipv4 address. How do I get both ipv4 and ipv6 addresses?

由 若如初见. 提交于 2019-12-08 11:24:17
问题 A simlar question has been asked here and here and here but none of the answers seem to work so I'm posting actual code and showing it running on an ipv6 capable machine hoping someone can suggest a solution Here's the code taken from both questions using System; public class HelloWorld { static public void Main () { string hostName = "google.com"; // uri.DnsSafeHost; Console.WriteLine("DNS.GetHostAddresses: " + hostName); var hostAddresses = System.Net.Dns.GetHostAddresses(hostName); Console

how to show The IP address in IPv4 which show ::1 in the web page

由 ♀尐吖头ヾ 提交于 2019-12-08 10:28:31
问题 I want to show the IP address of the computer's client. But in my computer which running in localhost show only "::1" . If i run in the localhost, it should be show 127.0.0.1. So how to show the IP address especially in IPv4. Because I read in another article that the ::1 is in IPv6. Here is my code : function get_ip() { if (!empty($_SERVER['HTTP_CLIENT_IP'])) //check ip from share internet { $ip=$_SERVER['HTTP_CLIENT_IP']; } elseif (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) //to check ip is

Python: ipaddress AttributeError: 'str' object has no attribute

由 爷，独闯天下 提交于 2019-12-08 08:55:33
Following the advice given here , I'm using the check the ipaddress module to perform checks of type: In [25]: IPv4Address(u'100.64.1.1') in IPv4Network(u'100.64.0.0/10') Out[25]: True Works fine in IPython. Yet when I turn it into a function: import ipaddress def isPrivateIp(ip): ip4addressBlocks = [u'0.0.0.0/8', u'10.0.0.0/8', u'100.64.0.0/10', u'127.0.0.0/8', u'169.254.0.0/16', u'172.16.0.0/12', u'192.0.0.0/24', u'192.0.2.0/24', u'192.88.99.0/24', u'192.168.0.0/16', u'198.18.0.0/15', u'198.51.100.0/24', u'203.0.113.0/24', u'224.0.0.0/4', u'240.0.0.0/4', u'255.255.255.255/32'] unicoded =

iOS - Get device's DNS server address on IPv6 only network

由 左心房为你撑大大i 提交于 2019-12-08 08:20:48
问题 I am trying to get device's DNS server address while connected to IPv6 only network on iOS. The following code works well for when connected to IPv4 network but doesn't work on IPv6 network. Code taken from this answer. res_ninit(&_res); res_state res = &_res; for (int i=0; i < res->nscount; i++) { sa_family_t family = res->nsaddr_list[i].sin_family; if (family == AF_INET) { NSLog(@"IPv4"); char str[INET_ADDRSTRLEN]; // String representation of address inet_ntop(AF_INET, & (res->nsaddr_list[i

storing/retrieving IPv4 & IPv6 addresses in MySQL

由 梦想的初衷 提交于 2019-12-08 07:51:35
问题 Sorry I don't know much about this subject, but all I'm looking for is a quick-and-easy solution for uniquely representing any IP address (v4/v6) in MySQL so I can easily retrieve the last time (if any) that a particular computer has visited my site. I don't need to do any computations on the addresses, just retrieval, so any unique representation should be ok. I do plan on storing a lot of these (don't have an estimate yet), so space may become a concern. I've seen many solutions for storing

In IPv4 network finding the period of identifiers generated by a host wrap around?

由 为君一笑 提交于 2019-12-08 05:13:05
问题 Every host in an IPv4 network has a 1-second resolution real-time clock with battery backup. Each host needs to generate up to 1000 unique identifiers per second . Assume that each host has a globally unique IPv4 address. Design a 50-bit globally unique ID for this purpose. After what period (in seconds) will the identifiers generated by a host wrap around? 回答1: There is a system which generates 1000 IDs per second. You need to design a 50bit globally unique ID. Now the IPv4 address of each

Python: ipaddress AttributeError: 'str' object has no attribute

由 跟風遠走 提交于 2019-12-08 03:23:54
问题 Following the advice given here, I'm using the check the ipaddress module to perform checks of type: In [25]: IPv4Address(u'100.64.1.1') in IPv4Network(u'100.64.0.0/10') Out[25]: True Works fine in IPython. Yet when I turn it into a function: import ipaddress def isPrivateIp(ip): ip4addressBlocks = [u'0.0.0.0/8', u'10.0.0.0/8', u'100.64.0.0/10', u'127.0.0.0/8', u'169.254.0.0/16', u'172.16.0.0/12', u'192.0.0.0/24', u'192.0.2.0/24', u'192.88.99.0/24', u'192.168.0.0/16', u'198.18.0.0/15', u'198

How can I sort a list of IP-addresses in Perl?

由 拜拜、爱过 提交于 2019-12-07 08:42:37
问题 I have a bunch of IP-addresses stored in an array, e.g.: my @ip = qw(10.11.1.1 10.100.1.1 ...); How can I sort the addresses in the ascending order? I've tried a simple sort but it failed, of course. 回答1: IPv4 addresses are just 32-bit numbers. use Socket qw( inet_aton ); my @sorted = map substr($_, 4), sort map inet_aton($_) . $_, @ips; or my @sorted = map substr($_, 4), sort map pack('C4a*', split(/\./), $_), @ips; The first one also accepts domain names. 回答2: I'm not fond of any solution
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