Is it possible to make part of a site on IIS only viewable from localhost?

Should anyone wish to do this on the command line, this appears to work on IIS 7+

%windir%\system32\inetsrv\appcmd.exe set config "Default Web Site" -section:system.webServer/security/ipSecurity /+"[ipAddress='0',allowed='False']" /commit:apphost
%windir%\system32\inetsrv\appcmd.exe set config "Default Web Site" -section:system.webServer/security/ipSecurity /+"[ipAddress='127.0.0.1',allowed='True']" /commit:apphost

Reference

I initially wanted to do this in web.config to ease distribution, and it looked like the following might work:

<security>
    <ipSecurity allowUnlisted="false">    <!-- this line blocks everybody, except those listed below -->                
        <clear/> <!-- removes all upstream restrictions -->
        <add ipAddress="127.0.0.1" allowed="true"/>    <!-- allow requests from the local machine -->
    </ipSecurity>
</security>

but as you need to unlock the function in the central IIS config anyway there was no advantage over making the change directly using the first commands.

In IIS6 you can bring up the properties for the web and click on the directory security tab. Click the button in the middle of the tab for editing the IP and Domain restrictions. On this tab set all computers as denied, then add an exception for the IPs you want to allow access to this site.

I am not sure how to configure this on IIS7. I looked but couldn't find it, if I find it I will edit this answer.

Edit: Configuring IIS7

• Josh

For some one doing it in IIS 8 / Windows 2012

1) In Server Manager, go to Manage, Add Roles and Features, Next, Next (get to Server Roles), scroll down to Web Server (IIS), expand that row, then expand Web Server, and finally expand Security. Make sure that IP and Domain Restrictions are installed.

2) In IIS Manager, drill down to the folder that you want to protect and left click select it. In the Features View of that folder select IP and Domain Restrictions In Actions choose Edit Feature Settings. Change 'Access for unspecified clients:' to 'Deny' then OK.

3) Finally go to 'Add Allow Entry' In the Actions menu. Type in the Specific IP address of your server.

Now only requests coming from your server will be allowed access. Or any server that shares that IP address. So in a small network, the office could share the IP address between all of the PCs in that offices, so all of those PCs could access that folder.

Last but not least is to remember that if your network has a dynamic IP address, then if that IP changes, you will expose your blog admin folder to whoever is using that IP now. Also, everyone on that new IP address will lose access to your that folder...

You can also use bindings instead of IP restrictions. If you edit the bindings for the web site you want to restrict access to, you can select which IP address the site is available at. If you set the IP address to 127.0.0.1, then the site is only responding on this IP address, and this IP address will of course only work locally on the machine.

I've tested this using IIS 8.5.