Android Question Get all domain names using java code

[PdeG]

Hi all,
I need to retrieve all subdomain from a domain, a friend provided a JAVA function, I need this function to return a list of domain names.
Can someone help me to implement the function in a #IF JAVA that return a list or array with domain names.

TIA Peter

void updateDnsList(){
    // start a thread and do the DNS request
    final AsyncTask<Void, Void, String[]> xxx = new AsyncTask<Void, Void, String[]>() {
        @Override
        protected String[] doInBackground(Void... params) {
            Vector<String> listResult = new Vector<String>();
            try {
                // add all round robin servers one by one to select them separately
                InetAddress[] list = InetAddress.getAllByName("some.domain.com");
                for (InetAddress item : list) {
                    listResult.add(item.getCanonicalHostName());
                }
            } catch (UnknownHostException e) {
                e.printStackTrace();
            }
            return listResult.toArray(new String[0]);
        }

        @Override
        protected void onPostExecute(String[] result) {
            // do something with the result
            super.onPostExecute(result);
        }
    }.execute();
}

 

[Sandman]

I need to retrieve all subdomain from a domain, a friend provided a JAVA function

Not really possible unless you do some brute forcing. Your function won't work.

How do I get a list of all subdomains of a domain?

I want to find out all the subdomains of a given domain. I found a hint which tells me to dig the authoritative nameserver with the following option: dig @ns1.foo.example example.com axfr But this...

stackoverflow.com

 

[emexes]

Not really possible unless you do some brute forcing.

but Google search like site:ford.com often gives a good head-start

 

[Sandman]

but Google search like site:ford.com often gives a good head-start

I've never had any luck with that, when trying to find subdomains. I tend to use a tool like this:

Subdomain Lookup | Web-based subdomain scanner | WhoisXML API

Our subdomain checker tool allows you to identify the subdomains for a domain. Get web-based and shareable online reports. Try it with free credits.

subdomains.whoisxmlapi.com

Checking subdomains for whitehouse.gov gave 35 subdomains:

whitehouse.gov | Subdomains Lookup | WhoisXML API

whitehouse.gov lookup report. Our subdomain checker tool allows you to identify the subdomains for a domain. Get web-based and shareable online reports. Try it with free credits.

subdomains.whoisxmlapi.com

There's a reason why there are dedicated sites for this. It's not a dead simple problem to get this information.