IIS Server - Redirecting URL on another server for Challenges

[immanens]

Hi, My letsencrypt certificates are managed by one single server. which means, that all other servers should redirect ACME checking requests to this ssl management server. is that possible? how should I do that? 301?rewrite?

thanks for your answers.

[mnordhoff]

@immanens

is that possible? how should I do that? 301?rewrite?

Yes, that will work. Let's Encrypt will follow 301 redirects. And 302 redirects. And probably some other redirect codes like 307, but i haven't checked.

[immanens]

I redirect with IIS (sorry), and redirect seams do not work. so, I used rewrite, with following regex syntax:

^(.welll-known)/(acme-challenge)/([-_0-9a-zA-Z]+)

and rewrited url

http://LE-server-unix.domaine.com/{R:1}/{R:2}/{R:3}

they may have a better way to do that, but I didn’t them. hope that would useful for someone else.