IIS 7 and Above
FastCGI problems make PHP-sites crash running in IIS 10
Re: FastCGI problems make PHP-sites crash running in IIS 10
Dec 04, 2017 07:59 AM|RolfSnijd|LINK
Hello Yuk Ding,
Thank you for your answer and advice.
A. About IUSR: I thought this IIS-user is obsolete/deprecated in Windows IIS 10.
I also see other Windows-users (via Permission Entry for <...UNC:website...> Select User or Group), such as:
ASP.NET, IIS_IUSR, IIS_WPG, and IUSR, but no Windows-users with the name of a site, generally: IIS (Apppool\<apppoolname>).
But all these sites do have a Windows user-profile/account in c:\users\ !?!
B.a) I have tried, though, to initiate IUSR rights to my Piwigo-site from top-level folder and all sub-folders (parent/child + files: Replace all child permissions...).
This led to many 'Access denied' message-boxes regarding all kinds of files within this website (sub)folders.
Previously, IUSR had no rights at all on the piwigo-website (sub)folders, but now I gave the following Window-rights to IUSR (except for the Access Denied items):
Read & execute+, List folder contents+, Read+, Write+ .
One of these IUSR-rights seems to have a slight beneficial effect on the Piwigo-site: less errors (HTTP Error 500.0), but not completely resolved.
b) I gave the same rights to my Piwik-site (also many 'Access Denied' on child-files).
The result on this site is that the information on particular site-entities is still not updated properly (Continous message: "Loading data ...").
C. I also gave IUSR these same rights (see above) to: c:\windows\temp .
D. And I gave IUSR rights on: ..\PHP\v7.1\php-cgi.exe: Read+ , Read&Execute+ .
I still keep on getting the message (or half-built pages in Piwik):
HTTP Error 500.0 - Internal Server Error : ..\PHP\v7.1\php-cgi.exe - The FastCGI process exited unexpectedly .
I still have no clue what exactly causes the problem: PHP v.7.1.7, CGI, Fastcgi, Piwigo, IIS 10 or Windows 10 update (Creator Fall), or collaboration of Windows with Open Source components.