I have set up a reverse proxy on a Dev box using IIS + ARR + URL Rewrite and everything works as expected with a mix of HTTP and HTTPS URLs.
I took web.config to another server with IIS + ARR + URL Rewrite and pasted web.config under Default Web Site; now I can access HTTP URLs via reverse proxy but HTTPS doesn't work. I made sure the target SSL certificate is trusted and I can access target service in a browser without any SSL issues but I'm not having any luck with the reverse proxy.
I have also matched ARR and URL Rewrite configs on both boxes (and they match) - any idea what I could be missing here - do I need to set up HTTPS binding as well? Also, are there any logs that can help me investigate this better?
I was missing the HTTPS binding on the new server, adding the binding did the trick.
Related
Please help :)
We have a web project. Frontend and backend. Windows Server 2019 IIS8
A problem is that we have a SSL certificate only for subdomain xxx.xxx.de (This we cant change)
Frontend work over https. Backend is on some server running, but we can not reach server over https.
Only over http.
Me idea was use Url Rewrite. That even works, but!!!
URL Rewrite Module has query string limit.
Anything over 3000 characters will be cut off!!
Does anyone know the problem?
Upd:
I made all settings for IIS for requestfilter over all maxlength and http sys in registery. If I only try over http, without url rewrite, then everything works with a 9000 byte query string. As soon as I turn on url rewrite, the query is cut off
There isn’t a query string limitation on URL rewrite module.
There are 2 related settings you can try:
Request filtering limitation and HTTP Runtime configuration.
HTTP.sys settings
Reference this official document: Http.sys registry settings for Windows - Internet Information Services | Microsoft Learn.
HTTP.sys can be configured by registry. You can create the following DWORD registry values under the following registry key: HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\HTTP\Parameters
I'm trying to setup a reverse proxy in IIS 10 using some fake urls.
In my host file I set up :
127.0.0.1 somedomain.com
Then I created a website in IIS 10 binding to this domain and a fake page :
When typing somedomain.com on chrome, the fake page shows properly. I assume the fake domain website works.
I have then another website with a reverse proy rewrite rule. I expect requests to the new website to be rewritten and show the first somedomain.com
When running my reverse proxy website I'm getting the error :
HTTP Error 400.605 - Bad Request
The request cannot be routed because it has reached the Max-Forwards limit. The server may be self-referencing itself in request routing topology.
Does anyone know what I'm doing wrong please ?
I tried changing the rule action type to "Redirect" and I can see that the redirection works correctly.
I have 2 Windows 2012r2 Servers (Dev and Production) both running IIS 8. Both were configured identically as far I as know. I am in the process of installing wildcard certs on both of them.
I installed the cert on my Dev server and it's working. One thing that surprised me though was that I didn't have to add any additional bindings to any of my site configs (eg: I didn't add https/443) and just simply changing http to https in the browser is working, and showing the cert. Why is that?
My main question though is that on my Production server, before importing the wildcard cert, I tried simply changing the url for a couple of the domains I host from http to https in a browser to see what the result would be. When I do this I'm getting a redirect loop for all https tests. ???
I don't have any https URL Rewrites configured so I don't know what the cause of the redirect loop is. It does it for all sites on this server when trying to load it using https.
example:
http://mydomain.example.com (works)
https://mydomain.example.com (redirect loop)
Safari says, "...redirected you too many times. ERR_TOO_MANY_REDIRECTS"
Chrome says, "Too many redirects occurred..."
Additionally, if I load http://localhost on the server itself it works. If I load https://localhost I get an error, "Not Found - HTTP Error 404".
I should add that this Production server is behind an F5 Load Balancer so that could be playing into this behavior as well.
The cause of the redirect loop for all sites on the Production server was an irule on the F5 LB, that shouldn't have been there, that was looping port 443 back to itself. HTTPS for all sites worked after the irule was removed.
With regards to the Dev server and https sites working without having to add a binding. I also discovered that the F5 was configured to handle certs with a wildcard cert so local certs weren't even required. The data center team didn't communicate to me that the LB was configured to handle certs for these servers.
Confluence IIS Reverse Proxy Setup
I have set up a reverse proxy on IIS 7.5 for Atlassian Confluence according to instructions found in the internet.
I wanted to redirect all traffic to "docs.unimaze.com" to "localhost:8090" on the same server.
This is how I did it:
Installed URL Rewrite 2.0
Installed Application Request Routing 3.0
Set up a reverse proxy rule:
Match URL: Matches the pattern (.*) using regular expressions (ignore case)
Conditions: (none)
Server variables: (none)
Action: Rewrite with http://localhost:8090/{R:1} (append to query string and stop processing of subsequent rules.
The only other thing I had to in order to make everything work (from https://serverfault.com/questions/76013/iis6-vs-iis7-and-iis7-5-handling-urls-with-plus-sign-in-base-not-querystr) was to run this command on the server so that URL's with "plus signs" in the URL's would be allowed.
%windir%\system32\inetsrv\appcmd set config "WebSiteName"
-section:system.webServer/security/requestFiltering -allowDoubleEscaping:true
Problem with external redirects
Confluence itself, seems to work perfectly BUT when attempting to edit a module from an external application (LucidChart Diagrams it fails), because a redirection to the external application also is rewritten, e.g. an attempt is made to redirect to this URL:
http://docs.unimaze.com/documents/edit/4b157fd9-8e28-4d70-8587-0fdd0839fbca?callback=...
when the redirect should actually be to the external application, so it should remain untouched by the rewriting rule:
https://www.lucidchart.com/documents/edit/4b157fd9-8e28-4d70-8587-0fdd0839fbca?callback=...
Is there an easy way to solve this?
This here helped: appcmd.exe set config -section:system.webServer/proxy /reverseRewriteHostInResponseHeaders:"False" -commit:apphost
In UI, the setting corresponding to this action on the Application Request Routing in IIS on the server node (select „Server Proxy Settings“) should be unchecked.
However, this had the effect that the page can not be loaded in Internet Explorer 11 L
The page is shown, but with empty space where the diagram is and it tries loading something forever.
In Firefox and Chrome it works fine.
I have no idea why it "freezes" in IE 11. Will check from other machines to see if this is always happening or not.
The easiest way to handle this is to take advantage of IIS host headers and make the proxied site believe it is responding as www.example.com:80 rather than localhost:8080. It turns out the AAR reverse proxy has an equivalent of Apache's ProxyPerserveHost setting it just isn't very well documented nor exposed in the UI.
To enable this setting you will need to open an elevated shell and run:
%windir%\system32\inetsrv\appcmd.exe set config -section:system.webServer/proxy -preserveHostHeader:true
Then configure the target site to listen at 127.0.0.1:80 with the appropriate host header and then configure the proxy to proxy back to localhost with the request and it should line up.
On my windows 2003 server I have two websites: 2send.co.il & oferavnir.co.il
For 2send.co.il I installed SSL.
When I adding Https to oferavnir.co.il (the site without the SSL) the other site content is displayed -
(https://oferavnir.co.il displays the content from 2send.co.il)
Host headers for both site seems to be ok.
What could it be?
By default, the SSL certificate is probably bound to all IP addresses on your server. If you have individual IPs for each site, you can update the binding to only listen on the IP for 2send.co.il. If you are using host headers and a single IP, the 2send.co.il site will respond for all https requests. You could use a product like ISAPI Rewrite to check the URL used for an HTTPS request and ensure that it matches 2send.co.il or else route it to the appropriate http site for the URL
http://forums.iis.net/t/1195794.aspx/1?HTTPS+displays+other+site+contnet