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I wonder how to make a domain name checker (testing for availability) for top-level domains?
Eg. to check if the domain: stackoverflow.com or stackoverflow.dk is available or not.
Do I need to be subscribed to a service to do this, or is there some simple magic behind such test?
Thanks
You need to do a WHOIS lookup - see http://www.aspdev.org/articles/build-whois-lookup-asp.net/
It seems there is a protocol for this check "A Domain Availability Check". I am not sure if this is only for the german .de domains or for all domains. Maybe this will help you a little bit.
Your best bet would be to create a webRequest object to fire off a whois request. You can then parse the results from the HTML using regex. I've done this on a number of occasions and it works well (providing the underlying website doesn't change)
an helpfullweb service client
http://www.whoislookup.be/wswhois/wswhois.asmx
referance
http://www.whoislookup.be/using-an-webservice-to-access-whois-search.aspx
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I was looking for ways to check and report the status of a webservice, and came across both these classes. Is there any benefit in using one of these over the other?
Ping tells you whether a machine is accessible.
WebClient allows you to make HTTP (web) requests.
You almost certainly want the latter. Or consider HttpClient - https://msdn.microsoft.com/en-us/library/system.net.http.httpclient(v=vs.118).aspx .
You may find https://stackoverflow.com/a/7523808/34092 useful as well.
Ping sends ICMP echo requests to the target machine. Many machines will not respond to these requests because firewalls. So this is an unreliable means of checking if a machine is running, let alone running the service you're interested in connecting to.
The best way to check if a service is running is to try and use it (without any kind of pre-check) in the way that the service provider intends you to use it. If it doesn't work, then you can safely say that the service is down.
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I want to create a distributed application and I want to be using Web services so that I could consent with the other systems because there will be a version running on mobile and other computer and other smart hours.
But what worries me is being able to protect the application because it would be a lot of data and there will be great to adopt it.
Is HTTPS protocol enough to protect data during transmission and enough inability to eavesdrop on?
my English is poor i use google translate and not very good in that but is the better>
thx
HTTPS should suffice if the whole question circles around the transmission of data between the server and the client. If the data is EXTREMELY sensitive, implement some kind of encryption for the data itself, but in most cases, yes SSL/TLS will do the trick. I would be more worried about getting a proper authentication solution in Place to protect access in the first place.
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I want to obtain the geo location of users without their permission. Thus I dont want to use the javascript html5 method.
I'm more thinking of a hosted service, where we call their api and based on the users IP address they determine a rough location.
Ive been on a lot of sites that clearly do this and know roughly where your located.
Can anyone recommend a solution to this in either code or hosted solution.
This will probably help you..
http://www.iplocation.net/
http://msdn.microsoft.com/en-us/library/system.web.httprequest.userhostaddress(v=vs.110).aspx
HttpRequest.UserHostAddress should get you sorted. It will get the current request's IP address.
As to the physical location, I believe you'll have to pay a service for that. Any more information would be solicitation of a service, which is frowned upon.
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I see a lot of information on using PayPal as a checkout option on your website. However, I can't seem to find any concrete information on using PayPal to pay your users. I'm looking for the correct API to do this in an ASP.NET application.
I found this on NuGet, but I don't know if it accomplishes what I need. So, which API should I be looking at in order to pay users using PayPal? Which information will I need from them in order to pay them?
The Classic API has something called MassPay. This pays anyone via PayPal (or email) but it costs up to $1 to use.
I ended up going with AdaptivePayments, which allow for direct payment from your account (therefore requiring no approval). THIS is the guide I found most helpful.
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I am implementing MS-WOPI host with MS-WOPI client being Office Web Apps. I want to provide Word editing functionality and need to implement MS-FSSHTTP protocol.
I read the documentation http://msdn.microsoft.com/en-us/library/dd943623(v=office.12).aspx and
I also tried to fined some examples, but didn't get the success.
Could someone provide a simple example of MS-FSSHTTP implementation?
Here is a sample implementation using CobaltCore. Pretty much a combination of my answers about WOPI/FSSHTTP on this website in one project.
https://github.com/thebitllc/WopiBasicEditor
I think you're asking for the impossible. There is no such thing as a simple fsshttp server. Look at the videos on MSDN from conferences where they've discussed it. The fsshttp team estimates it will take over a year to properly build out a protocol server. It is not a project for the faint of heart.