IIS : IP and Domain Ristrictions2022/01/26

	Set IP and Domain Ristrictions to specific web contents.
[1]	Run PowerShell with Admin Privilege and Configure.

Windows PowerShell
Copyright (C) Microsoft Corporation. All rights reserved.

# install IP and Domain Ristrictions feature
PS C:\Users\Administrator> Install-WindowsFeature Web-IP-Security 

Success Restart Needed Exit Code      Feature Result
------- -------------- ---------      --------------
True    No             Success        {IP and Domain Restrictions}

# restart IIS
PS C:\Users\Administrator> Restart-Service W3SVC 

PS C:\Users\Administrator> Get-Website 

Name             ID   State      Physical Path                  Bindings
----             --   -----      -------------                  --------
Default Web Site 1    Started    %SystemDrive%\inetpub\wwwroot  http *:80:
RX-7.srv.world   2    Started    C:\inetpub\newsite             http *:80:rx-7.srv.world
                                                                https *:443:rx-7.srv.world sslFlags=0

PS C:\Users\Administrator> Get-ChildItem C:\inetpub\newsite 

    Directory: C:\inetpub\newsite

Mode                 LastWriteTime         Length Name
----                 -------------         ------ ----
d-----         1/24/2022  11:03 PM                aspnet_client
d-----         1/24/2022  11:09 PM                auth_basic
d-----         1/24/2022  11:22 PM                auth_win
d-----         1/24/2022  11:25 PM                content01
d-----         1/24/2022  11:26 PM                content02
-a----         1/24/2022  11:06 PM            428 index.aspx
-a----         1/24/2022   9:55 PM             28 index.html

# for example, set restriction to [content01] folder on [RX-7.srv.world] site to deny from [10.0.0.128/29]
PS C:\Users\Administrator> Add-WebConfiguration -Filter '/system.webServer/security/ipSecurity' -Location "RX-7.srv.world/content01" -Value @{ipAddress="10.0.0.128";subnetMask="29";allowed="false"} 

# for example, change default setting for [content02] folder on [RX-7.srv.world] site as deny all (default is allow all)
PS C:\Users\Administrator> Set-WebConfigurationProperty -Filter '/system.webServer/security/ipSecurity' -Location "RX-7.srv.world/content02" -Name allowUnlisted -Value False 

# for example, set permission to [content02] folder on [RX-7.srv.world] site to allow from [10.0.0.240/255.255.255.240]
PS C:\Users\Administrator> Add-WebConfiguration -Filter '/system.webServer/security/ipSecurity' -Location "RX-7.srv.world/content02" -Value @{ipAddress="10.0.0.240";subnetMask="255.255.255.240";allowed="true"} 

# restart Web site
PS C:\Users\Administrator> Restart-WebItem -PSPath 'IIS:\Sites\RX-7.srv.world'

IIS : IP and Domain Ristrictions (GUI)

	On GUI configuration, set like follows.
[2]	Run [Start] - [Server Manager] and enter [Add roles and features], then check a box [IP and Domain Ristrictions] and install it.

[3]	On this example, Set restriction to [content01] folder on [RX-7.srv.world] site. Select target folder on the left pane and open [IP Address and Domain Ristrictions] on the center pane.

[4]	By default, setting is allow all, so click [Add Deny Entry] on the right pane to restrict some IP address.

[5]	Input an IP address on [Specific IP address] field, or IP address range on [IP address range]. On this example, set [10.0.0.128/29] range to deny from them.

[6]	After setting, entries are displayed. If you'd like to add more, possible to add with the same operation.

[7]	After setting, verify working normally to access from denied computer and allowed computer. The example below shows that source computer that has [10.0.0.130] accessed to IIS site but he was denied as restricted settings.

[8]	The example below shows that source computer that has [10.0.0.137] accessed to IIS site and he could access to it as settings.

[9]

For more example, Set config to [content02] folder on [RX-7.srv.world] site.
Select target folder on the left pane and click to open [IP Address and Domain Ristrictions] on the center pane, then following windows is shown. Change default [allow all] setting on here, Click [Edit feature setting] on the right pane.

[10]	Change to [Deny] on [Access for unspecified clients] field. By this change, default setting turns to [deny all].

[11]	Click [Add Allow Entry] on the right pane.

[12]	Input an IP address on [Specific IP address] field, or IP address range on [IP address range]. On this example, set [10.0.0.240/255.255.255.240] range to allow from them.

[13]	After setting, entries are displayed. If you'd like to add more, possible to add with the same operation.

[14]	After setting, verify working normally to access from denied computer and allowed computer. The example below shows that source computer that has [10.0.0.239] accessed to IIS site and he was denied as settings.

[15]	The example below shows that source computer that has [10.0.0.254] accessed to IIS site and he could access to it as allow settings.

[16]	By the way, it's possbile to set domain name based restrictions, too. However, for the screen like below, it is not recommended.

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