Server Licensing mode the number of simultaneous connections per server and the difference between each device or Per user summary _win server

Server licensing mode per server, simultaneous number of connections to Per Device or per user
Per-server Authentication: The number of concurrent client user visits that allow services to be available at the same time;
Per Customer certification: Refers to your every client has a certification license, the client through this authentication access server;
examples are as follows:
The company has two servers: Server1,server2;
Client: 100 units;
If you choose each server certification, this you need for SERVER1,SERVER2 each selected 100 certification, a total of 200 certification, to meet 100 clients at the same time access;
If you choose each customer certification, you need only 100 customer certification, you can meet the needs of 100 client access;

Users can choose different authentication methods according to their own requirements.
Change the local server to Per Device or per user authorization
1. On the server that you want to configure, open Select licensing mode.
2. In products, click the product for which you want to change the licensing mode.
3. Click Per Device or per user.
To open a Control Panel item, click Start, click Control Panel, and then double-click Authorize.

Web Server Permissions

You can configure IIS to specify the following permissions for the Web site directory, such as read access rights and directory browsing permissions. It is important to understand the difference between Web server permissions and NTFS permissions. Unlike NTFS, Web server permissions apply to all users who access the Web and FTP sites. NTFS permissions apply only to specific users or groups of users who have a valid Windows account. NTFS Controls access to physical directories on the server, while Web and FTP permissions control access to virtual directories on a WEB or FTP site.
If you select Per Device or per User mode, you must have a separate Client Access License (CAL) for each device or user that accesses a server running a product in the Windows Server 2003 family. With a CAL, a specific device or user can connect to any number of servers running a product in the Windows Server 2003 family. Most companies that have multiple servers running the products of the Windows Server 2003 family Use this authorization method.
Instead, each server license means that each concurrent connection to this server requires a separate CAL. In other words, this server can support a fixed number of connections at any time. For example, if you select the Per Server client licensing mode with five licenses, the server can have five concurrent connections at a time (five clients are allowed at one time if each client needs a connection). Clients that use these connections do not require any additional licenses.
Each server licensing mode is often preferred by small companies with only one server. This licensing mode is also useful for Internet or remote access servers in cases where the client computer may not be authorized to be a network client of the products of the Windows Server 2003 family. You can specify the maximum number of concurrent server connections and reject any additional logon requests.
If you are unsure which mode to use, select Per server because you can change from Per Server mode to Per Device or per User mode without any cost.
differences per server and per-client (turn)
Understand the difference between per server and per client when installing window2003
　　
In the installation of WIN2003, the textbook on the choice of "Per server" or "per client", teaching materials on the interpretation has been not very clear to students in class when the students do not understand. Today, I made a phone call to Microsoft 8008203800, and finally got it.
　　
Installation using a set of WIN2003 system requires two copies of money: WIN2003 software and user-approved money. WIN2003 's official offer is more than 30,000, each user license is 340 yuan. The following is an example of a company.
　　
There are 50 computers in a company, connected to the LAN, another server installed WIN2003 system, the number of users access to the server at the same time no more than 30 units (while access is to share files through the network or shared printers, etc.), then the cost is: 1 sets of WIN2003 price 30,000, 30 User License Price 340x30. When installing WIN2003, select Per Server mode, the number of users fill in 30.
　　
If, over time, the company installs another WIN2003 system, and the number of users accessing the server is 30, the company will have to spend 30,000 +340x30 of money.
　　
The above situation company computer only 50, but because of the simultaneous access to two servers, each of the number of visitors have a maximum of 30 people, so use the above per server approach to more expensive, better solution is the company's internal WIN2003 replaced per customer model. The company will need to spend a total of 30,000 X2 sets of +340x50, and after the company added WIN2003 server, only need a set of WIN2003 money, and no longer need to add a license for customers, unless the company added user computers.
　　
　　
There are two more points to note:
　　
1, in the above example, the client computer is not genuine and WIN2003 purchase for the user license does not matter, that is, even if the client computer is already a genuine XP users, if you want to use WIN2003 to provide network services, but also to buy user license.
　　
2, 30,000 purchase of WIN2003 is only the price of the software itself, if users need access to WIN2003 shared files, share printing also have to buy user license.
　　
3, if WIN2003 does not provide services such as user sharing, but only when a Web server is used, in addition to spending 30,000 to buy WIN2003, you have to purchase a Web Access License, Web Access License and the number of users to access the site does not matter. There are more than 20,000 quotes for a Web Access License.
　　
4, the company spends so much money to buy the user license is not a specific program or software, but only a Microsoft company issued a license contract, indicating that your company is the legitimate use of software, otherwise known as D version