I have an app running on a server where I access using the servers ip. But now I need to have a subdomain configured in order to make an external API work but I have no clue of how achieve it.
Now I access to my server using IP -> XX.XXX.XXX.XXX:3000
And I need to change it for something like -> myapp.companyname.com
You don’t, because the Internet doesn’t work that way.
You create the subdomain by configuring the DNS server for the domain to point that subdomain at the IP address.
If you want to change the port number (from the default of 80 to 3000) without putting it in the URL itself, then you need to change the Node.js program or put a proxy server in front of it.
This is indeed a notorious problem with distributed web development. Presumably your API requires you to register your own hostname in some sort of allow-list, and then checks incoming requests for matches to that allow-list. (Why? Cybercreeps.)
You need to find out the IP address of your development machine (not 127.0.0.1, that's the loopback IP and every machine has it). It's OK if your development machine's address is on a private network, like '192.168.0.20for example. Give the commandifconfigand look for the address (it'sipconfig` on Windows).
You then need to put that IP address into a DNS server.
Here's a free way to do that.
Create a FreeDNS account by visiting https://freedns.afraid.org/
Click on Subdomains.
Click the Add link.
Create a subdomain hostname under one of FreeDNS's public domains. Maybe javier.ortega.mooo.com is a good choice
Put your machine's IP address into it.
Then, use https://javier.ortega.mooo.com:3000 to hit your development machine's nodejs app.
You can pay FreeDNS to register your own domain name and use that if you prefer.
The solution I needed was modifying the file hosts from -> system32/divers/etc/hosts and adding there the configuration relative to the ip - domain relation I was lookin for.
Related
I searched for a few options on my issue but couldn't find any useful information unfortunately.
Here is my issue:
Suppose I have 1x computer that runs a rest service on a specific port lets say 5555, running in a private network.
Now I have a frontend/browser application (javascript) that could be opened with a mobile phone or computer. When a device is connected to the same network (suppose wireless) and opens the frontend application it should discover in any way the rest service of the other computer, but I can't find a solution to that challenge.
So I can't find the sevices' ipv4 in the network since the webRTC workaround got smashed. I would have to traverse all possible private ip ranges to find that running service, which seems like an overkill.
Anyone got any idea how to solve this challenge?
Most web apps actually use the port-scan approach, which you are trying to avoid. I could think of some other approaches:
Have the service also publish an mDNS service under a specific name, e.g. foo.local. Your web app can simply have a static configuration using that hostname. This will, hovewer, require you to be able to control the service and your network/host need to be capable of using mDNS.
Require the admin of the service to register the local IP adress in a public DNS server. This will require manual config of the URL in the web app, but you can at least avoid dealing with discovering the address.
What you are talking about is sort of network scan, which is a security issue if you can do it, though it is usually possible in home networks. I would add a DNS server for that local network and use a local domain name to access the service. I don't know any other standard way to propagate where the service is.
Detecting visitor IP is easy. But how about detecting DNS server ips of a visitor ?
I found this PHP function, however it finds only domain names' DNS.
dns_get_record("website.com", DNS_ANY);
Is it possible to detect visitor DNS server ?
Yes, you can, like detecting page resolution of visitors.
You need own DNS server and force user to resolve unique dns name. If user tried to resolve it then they will leaks to your DNS server own DNS server address. Next to DNS server have to share information who asked about the unique dns name to your web apps.
It's not easy, but it can be done. There's a demonstration of the approach suggested in a separate answer by Adam Dobrawy at http://ipleak.net/
To add a bit of detail, the way you can implement something like this is:
Part 1 - Set up your own DNS server on myspecialdomain.com
This DNS server needs to be custom written to log and store the incoming request and the source IP address. This storage only needs to be for a short period of time, so something like memcache might work nicely.
The DNS response should be an NXDOMAIN.
Part 2 - Your client-side code
In your Javscript make and store a large random number. Make the browser lookup .myspecialdomain.com. Load this via a JS img tag with an error handler.
In that error handler, now make a query to your server side code passing the random number.
Part 3 - Your web application (server side)
You need to implement some server side logic that takes the random string, looks it up in the datastore, and retrieves the IP address of the DNS server.
Note the IP address here will be the IP Unicast address of the particular server, it won't be an IP Anycast address like 8.8.8.8.
Here you can use GeoIP or Whois databases to determine the owner of that IP address (OpenDNS, Google etc). You can then generate a response to send to the client logic.
DNS resolution is not part of the request itself which means there is no way for the receiver of the request to know which DNS was used by the client (browser).
The DNS request happens first, as it is required to resolve the hostname to an IP address. Once this is complete, then a separate request is performed to the address in question.
The answer is NO. All the server got is a TCP connection to the visitor, that is, an [IP, Port] pair. DNS resolution depends on visitor's local configuration and can be done by a proxy.
I'm running a web app where users can request a map with their position through gps. In order to do that browsers like Chrome and Safari require an HTTPS protocol, not just http, otherwise call to JS function "getCurrentPosition" will fail. (but on Firefox, for example, it's working)
First question: are there any other possibilities to get user location (through gps, not just by ip)?
If not, the only way (I think) is to switch to https.
Now, app is running on a cheap shared hosting (and I can't do anything about that right now), the only thing that I can do is purchase an SSL certificate in order to enable https protocol.
Second question: hosting offers both ssl certificate with dedicated ip and without dedicated ip. Which is the difference? Well, I know what's a dedicated ip, but for my needs (website + this small app) which advantage could I have from a dedicated ip?
Third question: if I choose a certificate from another CA then I need root access to server in order to install it, is it right?
Last one: some hostings offer SSL with identity verification and without it, how theese last work? I mean, https should't guarrantee encrypted connections with a verified website?
If you have any links please post them, most of resources that I found are too old and they don't talk about acquiring gps data with JS.
Thanks a lot!
EDIT: just for completion: this page is about this deprecated js call for non-secure site. Are there other possibilites to get same result?
First question: are there any other possibilities to get user location
(through gps, not just by ip)?
You can track users’ real time location by using Google Maps APIs, I hope below links will help you.
Using Google Map Tracks API
https://developers.google.com/maps/
Second question: hosting offers both ssl certificate with dedicated ip
and without dedicated ip. Which is the difference? Well, I know what's
a dedicated ip, but for my needs (website + this small app) which
advantage could I have from a dedicated ip?
In the past, SSL requires dedicated IP to secure web applications. But in the mean time, SSL doesn’t require dedicated IP due to SNI technology. If your website hosted on shared IP address, then SNI permits a server to implement multiple certificates on a single IP address.
There are plenty of advantages using a dedicated IP instead of shared IP - read this article
Third question: if I choose a certificate from another CA then I need
root access to server in order to install it, is it right?
Whether you continue with current provider or new one, you don’t need root access of server in order install an SSL certificate.
Last one: some hostings offer SSL with identity verification and
without it, how theese last work? I mean, https should't guarrantee
encrypted connections with a verified website?
All SSL certificates are come with industry standard 256 bit encryption and ensures about encrypted connections. There is varying upon their validation process as below.
Domain Validation Certificates - CA will follow automated validation process and confirm only your control over the domain. You will get this certificate in just minutes.
Business Validation Certificates - CA will check your business existence by verifying official documentations. CA will take 2 to 3 business days to issue your certificate.
Extended Validation Certificates - CA will follow strict validation process and validate legal, physical and operational identity of business. EV SSL will enable most visible sign “the company name in the green address bar”, it will increase trust of your website visitors.
I hope this will helpful for you!
Hi I have node js application. I run it locally as :
http.createServer(processRequest).listen(1337);
To rich my application in browser I need to write: localhost:1337/index.html
So I have 2 questions:
If I want to rich my application as www.myapp.dev/index.html instead of localhost:1337/index.html, what I need to change in my code?
I bought domain www.myserver.com, what I need to put in my app in order to do it work in this domain?
Thanks.
You need to change 1337 to 80 (technically you don't need to do that, you could run an proxy on port 80 instead).
Nothing
Your app isn't paying attention to the Host header, so it doesn't matter what Host header the browser sends.
Outside the app you will need to configure your DNS to point the hostname at your IP address.
Greetings all,
I would very much like to determine the IP# of a domain from client script.
It's for use in a testing application to determine whether or not a certain domain is set to a QA address as opposed to the address live on the . The testing machine will have it's host file set to resolve a domain to the QA address.
Pinging from the server won't help since the server is getting the public DNS address.
Is this possible in JavaScript? Maybe a Flash could do the trick?
Have a look at Smart IP Api. Seems to do everything you're looking for and has some simple tutorials.