两个冲突的X-Powered-By标头

Question

Recently I was curious about the technology that certain site was using, so I have taken a look at the headers. To my joy, what appeared was:

X-Powered-By: ASP.NET
X-Powered-By: PHP/5.3.2

I am curious: what else, in addition to just overriding the headers (eg. for obfuscation/security purposes), could lead the web application to produce such response headers? Assuming that the site developers / administrators did not manipulate mentioned headers, what is the case for such response headers to appear?

If this helps in any way, maybe some other returned headers will help:

Server: Microsoft-IIS/6.0
Content-Type: text/html; charset=Windows-1250

(the rest of the headers look pretty normal, so I am not listing them)

I am not asking the question on whether I can run PHP on IIS etc., rather about what possible scenarios could result in such two X-Powered-By headers. Maybe some reverse proxy (written in PHP, serving pages generated by ASP.NET)?

Answer 1

I'd guess that it is pretty normal for a IIS server to serve both ASP.NET (should be nearly built-in) and additionally PHP as a module. ASP files with .aspx , PHP with .php .

Answer 2

可能这不是在描述页面，而是在描述Web服务器-即Web服务器同时安装了ASP.NET和php。