hi

i want to build a WEB site that have these specifications :

1 - Can manage many user accounts .(About 1,000,000 people)

2 - Have a secure enviorment because of money payments to users.

3 - Have a database for save some data for users.

Can i use DNN5 Community Edition for this purpose...?

If i can what consideration is needed...?

And in continue my question i want to write a client software that can get users data from database of mentioned site.

Can you show me the way...?

thanks.

You can definitely do this using DNN as the framework.  Depending on your specific needs relative to functionality you may need to implement some third party or custom modules.  DNN Community Edition is built on the same core code base as Professional Edition so you can use either depending on your needs.  If it will be completely mission critical, you may want to go the PE route so you do not run into a situation where you have to wait for a CE release to fix a bug.  There may also be some enhancements to PE that allow you to scale easier.

I think the main thing you want to look at is scalability.  There is a misconception that DNN is not scalable, and to operate it on a large scale, you need to modify DNN considerably.  This is not necessarily true, DNN can actually scale wonderfully on the infrastructure side without altering DNN significantly.  I work at PowerDNN and we have done many projects where we've implemented heavy traffic, high usage DNN sites, on 7+ server web farms (I've seen as high as 20 servers). The customers are always under the impression that this cannot be done with DNN, when in fact, DNN is an excellent scalable platform to build web applications on. 

DNN will do a lot of heavy lifting out of the box, but to accomplish some of your more specific requirements, such as grabbing specific data from a separate database, you will probably need a custom module.

afaik there are no default assumptions for DNN.

John's reply is a good one. DNN is usually not the bottleneck when you are talking about these kind of numbers, your hardware is. I would recommend you to talke to a DNN specialist that has a proven trackrecord in emplementing large dnn installations, on multiple server. One of the things you can do is contact sales@dotnetnuke.com with your specific questions...

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