ip

问题 I'm experimenting with the MaxMind GeoIP (lite) DB. Part of this is trying to see if I can make solid unittests. For unittests I'd need to have some IP addresses I can rely on sending the same information always. Most IP addresses will move around, and I'm assuming they're even more fluid in a GeoIP database, but are there some IP addresses I can reasonably rely on (for whatever reason)? 回答1: Martijn, You can use the Pingdom probe servers IP address as reference. It is physical server running

问题 Ok, so I am trying to write an application which works with a piece of hardware (a router). The first part of my application is to obviously detect if the device is on the network (either on the WAN side or the LAN side as the router can be accessed from both sides, whether you are connected to a down stream router or a directly to the router I am trying to access through the application) - I hope this is making sense. The two options I have thought of to detect if the device is on the

问题 Ok, so I am trying to write an application which works with a piece of hardware (a router). The first part of my application is to obviously detect if the device is on the network (either on the WAN side or the LAN side as the router can be accessed from both sides, whether you are connected to a down stream router or a directly to the router I am trying to access through the application) - I hope this is making sense. The two options I have thought of to detect if the device is on the

问题 I'm wondering how I'd go about getting the: Internal IP address; External IP address; and Default gateway in Windows (WinSock) and Unix systems. Thanks in advance, 回答1: There is no general purpose mechanism that works on Windows and UNIX. Under Windows you want to start with GetIfTable(). Under most UNIX systems, try getifaddrs(). Those will give you various things like the IP address of each interface. I'm not sure how one would go about getting the default gateway. I would guess that it is

问题 I'm provisioning a new Azure VM (resource manager) via Ubuntu command line. I'm following the steps outlined here to do so: https://azure.microsoft.com/en-us/documentation/articles/virtual-machines-linux-tutorial/ My question is: while provisioning a new VM, what do I do on the command line to ensure it has a static IP (reserved IP)? The same thing can be accomplished using Azure PowerShell via New-AzureReservedIP -ReservedIPName $reservedIP -Location $location 回答1: You need to define a

问题 I'm trying to block a range of IPs from visiting my website Here is what I have in my .htaccess file order allow,deny Deny from 64.244.0.0/64.245.255.255 Deny from 64.244.0.0/15 allow from all I'd like to know if anyone can tell (or estimate) me how many IPs have i blocked there? 回答1: I believe the first DENY FROM is just wrong. I've always seen it this way 64.244.0.0/15 Base Address^ ^Number of bits to use for subnet This would mean that you have 2^15 addresses in the deny block. Edit Using

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'm wondering has anyone had any experience in doing a whois on an IP and extracting the country code from that IP? Wondering what api would be the cleanest way of doing this with php. 回答1: Have a look at the MaxMind GeoIP database. They have a PHP API. 回答2: You can use my service, the http://ipinfo.io API for

问题 There are several email servers refusing connections of clients with public dynamic IP addresses. For example many smtp servers receiving emails only accept connections to clients having static IP adresses to avoid spam emails which are directly sent from computers having dynamic IP addresses. When I looked for answers using google I only found information saying it is impossible to distinguish between static/dynamic addresses. So how do the email servers do it? Are there any databases

问题 I am currently trying to port an administrative console application over to a Win 10 UWP app. I am having trouble with using the System.Net.Dns from the following console code. How can I get the devices IP Here is the console app code that I am trying to port over. public static string GetIP4Address() { string IP4Address = String.Empty; foreach (IPAddress IPA in Dns.GetHostAddresses(Dns.GetHostName())) { if (IPA.AddressFamily == AddressFamily.InterNetwork) { IP4Address = IPA.ToString(); break

问题 I have cloudera installed in one m1.large instance . I was able install it successfully. But once i stop the instance and start it again next morning the IP changes and cloudera still refers to old IP and none of the services run . How can i solve this problem because i can not keep instance up whole day? Since its for academic purpose and I don't have a budget . 回答1: This doesn't really have anything to do with Cloudera -- more the behavior of EC2 Instances. The feature you're looking for is