What is the IIS connection limit and how to modify the number of IIS connections

Source: Internet
Author: User
The number of IIS or Web connections refers to the access requests that the server can respond to at the same time, and it is easy to understand how many browser windows are allowed to access your site simultaneously, such as: 100 IIS connections can have 100 browser windows connected to the server simultaneously.

When a Web page is browsed, the server establishes a connection to the viewer's browser, each connection represents a concurrency, and the connection is present when the information is read from the server, and is normally closed automatically when the read is finished. Each browser, access to a site, may occupy 1 to many connections, when the page contains a lot of pictures, the picture is not a display, the server will produce multiple connections simultaneously send text and pictures to improve browsing speed. The more pictures in a page, the more concurrent connections the server has. When a picture or page is sent by a service, the server closes the connection for the connection with other requestors. Each concurrency is almost instantaneous, typically between a few milliseconds and dozens of milliseconds.

Reduce the pop-up window is a good way to improve the number of people online, but also pay attention to other sites as a friendship connection try not to call the site's code or pictures. For the general web site, basically all in the same browser window for link access, rarely with pop-up windows, a visitor only accounted for one IIS connections, normal 50 IIS can guarantee that 25-40 people online at the same time. And some of the programs, such as the Forum, the lake community, visitors are usually open 2-3 Windows access, 150 IIS to ensure that 50-75 people at the same time online.

All IIS-based Windows class servers have a limited number of simultaneous connections, and too many connections will directly cause the server to be unstable and out of line. Severe also causes the server IIS process to break or even the entire operating system to crash. Linux servers are similarly similar.

It can be said that the number of IIS connections is the most direct performance of virtual host standards. Note that the number of IIS connections is not the number of daily visitors, IIS connections is the maximum number of responses at the same time, such as the number of IIS connections is 60, it means that the time of a second or so the maximum number of requests to respond is 60, the site daily access is much larger, if the number of visits average, the daily visit can exceed thousands of Even tens of thousands

This connection limitation issue does not exist in Windows 2000 Professional or Windows XP Professional operating systems where IIS allows up to 10 clients for connections in Windows 2000 Server Edition or Windows 2003 Server Edition operating systems.

First, MetaEdit22.exe

Start-----Program after installation-----Administrative Tools-----MetaEdit

Select Lm\w3svc on the left after opening

and find MaxConnections in the pile on the right. (Maximum connection)

Data that's your maximum number of connections, change it yourself.

The maximum limit is 2000000000.

In addition, you've changed to-1 is no limit.

We know that IIS allows a maximum of 10 client connections in Windows 2000 Professional or Windows XP Professional operating systems, and this connection limitation does not exist in Windows 2000 Server Edition or Windows 2003 Server Edition operating systems.

Microsoft provides a gadget that manages IIS Metaedit,metaedit works on Windows NT4.0, Windows 2000, and I find it works on Windows XP, plus, MetaEdit can only manage II4.0, IIS5.0, or later IIS.

Use this tool to break through the Windows XP Professional IIS Client connection restrictions below:

Http://download.microsoft.com/download/iis50/Utility/5.0/NT45/EN-US/MtaEdt22.exe

Then, perform MtaEdt22.exe Follow the wizard prompts to complete the MetaEdit installation.

Finally, set the parameters for the client connection limit in MetaEdit.

After the

Installation MetaEdit is finished, click MetaEdit 2.2 In the Start Menu program group Administrative Tools, window, expand the tree to LM \ W3SVC on the left side of the window, and click directly on the W3SVC folder. Select the item named MaxConnections in the list on the right, and when you double-click it, a dialog box appears

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