Question

How would one build an ASP.NET site that could automate the creation of subdomains?

Asked by: kjsadeghi

Using ASP.NET 2.0 and IIS would it be possible to create a website that would allow users to register a sub-domain and create a new website?

Which classes would be required. Would you need to use a web service or IIS module?

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Asked On
2008-02-15 at 05:09:38ID23165856
Tags

ASP.NET & IIS

Topics

Visual Studio

,

.NET Framework 2.x

,

Microsoft IIS Web Server

Participating Experts
1
Points
500
Comments
4

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Answers

 

by: BeakZPosted on 2008-02-15 at 05:35:24ID: 20901440

Creating a new website can be done by using System.DirectoryServices to access the IIS directory.  You can also control all the settings for the Site definition this way too.  We use this in our systems to automate the whole of our site setups.  The following code might help.

As for registering a sub-domain, that would all depend on how you manage your NameServers.  If you use BIND, you could automate creation and updating your Zone files, and reloading the zones.  If you use a third-party, you would need to find out if they have a webservice or such like, to allow you to automate this process.

The code below isn't complete, but should get you connected to your IIS instance.  If you want more code, I have a class library that wraps all this up nicely, just let me know.


int iSiteID = 10000;   // Find a way to get a unique ID
 
DirectoryEntry root = new DirectoryEntry( "IIS://localhost/W3SVC" );
 
DirectoryEntry site = (DirectoryEntry) root.Invoke( "Create", "IIsWebServer", iSiteID );
 
site.Invoke( "Put", "ServerBindings", ":80:www.myurl.com" );
site.Invoke( "Put", "LogFileDirectory", "d:\\weblogs" );
site.Invoke( "Put", "DefaultDoc", "index.htm" );
site.Invoke( "SetInfo" );

                                              
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by: kjsadeghiPosted on 2008-02-15 at 07:06:27ID: 20902341

That's Great.

Aside from hard disk space what are the limitations of IIS in terms of the amount of sites that can be instantiated per server?

For examlpe would it be possible to have 100,000 sites on a single server?
If not would it be possible to have this process add sites to other servers as limiatations are reached?

 

by: BeakZPosted on 2008-02-15 at 07:16:57ID: 20902437

Not sure what the official limit is, although memory and processor availability will be a big factor.  We currently have about 500 sites running on one server, with 2Gb ram and a Xeon 2.4Ghz processor.

I had issues getting this code to access another server, all kinds of permission problems.  In the end I gave up and wrote a web service which runs on each server you want to set a site up on (including the site the "Setup process" runs on), and then use the web service to do the setup, makes the whole process a lot easier.

In this way you could distribute your sites across several servers, load one server to capacity (what ever that is) and then move onto the next, etc etc

BeakZ

 

by: kjsadeghiPosted on 2008-02-16 at 03:49:55ID: 31431151

Thanks for the info! Very Helpful

20120131-EE-VQP-002

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