I'm getting introduced into IPv6 and I've read that IPv4 addresses can be mapped to IPv6 by using the ::ffff: prefix. This led me to think whether address ::ffff:127.0.0.1 refers to localhost, so I...

I am having DNS issues with a certain target domain. I am using fopen() (but same issue with other functions) to retreive an image, but I get this error: Warning: fopen(): php_network_getaddresses...

Note: I looked extensively at a similar (but not duplicate) question here: GetAddrInfo cannot resolve ipv6.google.com (but nslookup can). This question is 9 years old, the OP is not experiencing th...

I have a canned reproducer invoking boost::asio::ip::tcp::resolver::resolve() on localhost once every 5 seconds. It counts the number of endpoints returned and compares that value against the previ...

I'm new to C and socket programming, just a question on getaddrinfo function. The function prototype of getaddrinfo is: int getaddrinfo(const char *host, const char *service, const struct addrinfo ...

i have created api in node.js which consume set of api hosted at http://dev.abc.co.in:20081 not every time but randomly sometimes it throws the error Error: getaddrinfo ENOTFOUND dev.abc.co.in a...

I tried to WHOIS a domain name, sans.org, but I get the following error: getaddrinfo(whois.pir.org): Name or service not known. And then I tried to WHOIS tiffany.com and get a similar error: geta...

I have a list of links that I need to check before processing some data. Checking headers with http.get returns error: events.js:72 throw er; // Unhandled 'error' event ^ Error: getaddrinfo ...

I am using getaddrinfo for an IPv6-related C-project. The "man getaddrinfo" on my computer (uname -a: 3.5.0-23) only indicates that it is "reentrant". So I guess it is not thread-safe. In scenari...

I'm trying to execute API.AI tutorial for building a weather bot for Google Assistant (the one here: https://dialogflow.com/docs/getting-started/basic-fulfillment-conversation) I made everything s...

So, after I got this error, I've been looking for an answer in here, almost everyone had a difficult way to fix this error but no one explained why this error occurs at all, so I don't find this qu...

Update - Answered by self I see one has to make sure that the DNS is resolved properly from the machine, check out the node documentation to make sure that domain is resolvable. Original Question...

I am trying to create a simple program that gets the IP address given a certain hostname: My code snipped is attached below: #include <stdio.h> #include <stdlib.h> #include <stdio.h&...

When making a large number of requests in node (using version 6.3.0, but this has also occurred on other versions), I get the error getaddrinfo ENOTFOUND. Researching this problem I found the follo...

I have a C program that uses getaddrinfo(). It works as expected on Linux and Mac OS X. I'm in the middle of porting it to Windows. When I compile it (with MinGW gcc) I get the following warnings...

I have a long running python script, launched with upstart. This script makes quite a lot of requests. Everything works well at first, however after a few hours I start permanently getting the foll...

I am writing a C application which is run as a systemd service on boot (distro: Arch Linux) and which shall connect to a server. Because the application is run on boot it eventually happens that th...

I am writing a program that would connect to different websites and request and download web-pages. I am doing this in large part to learn and properly understand web programming. I would like to k...

I'm developing a Shopify theme and I'm using https://github.com/Shopify/shopify_theme to update my files into Shopify. Unfortunately, I can't get it to work... When I try to upload/update a file, I...

Can someone help me on how I can catch this error? import pygeoip gi = pygeoip.GeoIP('GeoIP.dat') print gi.country_code_by_name('specificdownload.com') Traceback (most recent call last): Fil...

I am having some memory leaking troubles in an embedded application and while looking in the code, I see I do not freeaddrinfo() when getaddrinfo() returns non-zero: s = getaddrinfo(hostname, port,...

I am trying to read all the information about specific host and print out every information. I can read and print out all the addresses but I am not reading any ai_canonname! First I thought my ex...

If I get an initial "Name or service not known" (EAI_NONAME), the next call to getaddrinfo() seems to go straight to the dns instead of checking the cache first (nscd logs show no lookup attempts, ...

I'm writing a small C client/server application, but I cannot make the connection work when using the external IP address. The code for both client and server is taken from here, in particular the ...

I have this code for getting information about IPv4 address: struct addrinfo hints, *info = NULL; char addr4[INET_ADDRSTRLEN]; memset(&hints, 0, sizeof(hints)); hints.ai_socktype = SOCK_STREAM...