IIS 6.0
Procedures
To enable HTTP Keep-Alives
1.
In IIS Manager, expand the local computer, expand the Web Sites folder, right-click the Web site, and click Properties.
2.
On the Web Site tab, in the Connections section, click the Enable HTTP Keep-Alives check box.
3.
Click Apply, and then click OK.
IIS 7
from:https://technet.microsoft.com/en-us/library/cc772183(v=ws.10).aspx
To enable the HTTP keep-alive response header
You can perform this procedure by using the user interface (UI), by running Appcmd.exe commands in a command-line window, by editing configuration files directly, or by writing WMI scripts.
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Open IIS Manager and navigate to the level you want to manage. For information about opening IIS Manager, see Open IIS Manager (IIS 7). For information about navigating to locations in the UI, see Navigation in IIS Manager (IIS 7).
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In Features View, double-click HTTP Response Headers.
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On the HTTP Response Headers page, in the Actions pane, click Set Common Headers.
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In the Set Common HTTP Response Headers dialog box, select the Enable HTTP keep-alive check box and then click OK.
To enable the HTTP keep-alive header, use the following syntax:
appcmd set config /section:httpProtocol /allowKeepAlive:true | false
By default, the HTTP keep-alive header is enabled, but you can disable it by setting allowKeepAlive to false. For example, to disable the HTTP keep-alive header, type the following at the command prompt, and then press ENTER:
appcmd set config /section:httpProtocol /allowKeepAlive:false
For more information about Appcmd.exe, see Appcmd.exe (IIS 7).
The procedure in this topic affects the following configuration elements:
allowKeepAlive attribute of the <httpProtocol> configuration element
For more information about IIS 7 configuration, see IIS 7.0: IIS Settings Schema on MSDN.
Use the following WMI classes, methods, or properties to perform this procedure:
- HTTPProtocolSection.AllowKeepAlive property
For more information about WMI and IIS, see Windows Management Instrumentation (WMI) in IIS 7. For more information about the classes, methods, or properties associated with this procedure, see the IIS WMI Provider Reference on the MSDN site.