Add writing permission to PHP on IIS 7

Question

I need a PHP script to have writing permission in a directory. PHP 5.3 is running as FastCGI under IIS 7 with windows server 2008 as OP. On my php error logs, I got "permission denied" when the script attempts to write a file.

How can I sort this out? I tried to give all right to IIS_IUSR and to IUSR_myservername (with a right click on my folder) but it didn't work.

Any help would be very appreciate,

Regards,

Julien

Answer 1

I have the same setup and I have to give write permission to:

• IUSR
• IIS AppPool\<<AppPoolName>>

Answer 2

Actually, it's a little bit more complicated.

The first thing to do is to create a simple PHP file on the concerned website. (It's important to create the file on the concerned website because each website can have a different setting.) The content of this file should be:

<?php var_dump(ini_get('fastcgi.impersonate')); ?> 

Navigate to this file using a browser.

** Case 1 **

If your browser shows :

string(1) "1" 

Then, you need to execute the following command (you need to replace "Default Web Site" by the name you gave to your website in IIS) :

%windir%\system32\inetsrv\appcmd.exe list config "Default Web Site" ^ /section:anonymousAuthentication 

You will receive an answer which looks like this :

<system.webServer>   <security>     <authentication>       <anonymousAuthentication enabled="true" userName="IUSR" />     </authentication>    </security> </system.webServer> 

The information you are looking for is the value of the username attribute of the anonymousAutthentification tag.

• If this value is not empty, its content is the name of the user you need to give write permissions to.
• If this value is empty or if the attribute is simply missing, you need to give write permissions to IIS AppPool\AppPoolName (replace "AppPoolName" with the name of your website's application pool).

** Case 2 **

If your browser shows :

string(1) "0" 

You need to give write permissions to IIS AppPool\AppPoolName (replace "AppPoolName" with the name of your website's application pool).