Problem:
Need to proxy pass requests that ONLY matches the pattern: mywebsite.com/two-letter-country-code e.g mywebsite.com/es/ to mywebsite.vendor.com/es this second url is a Third-party vendor that will return content translated.
Work In progress:
IIS doesn't natively support ProxyPass so I installed "Application Request Routing (ARR)" to configure a forward proxy following the instructions in this article https://www.iis.net/learn/extensions/configuring-application-request-routing-arr/creating-a-forward-proxy-using-application-request-routing, in the step 14 while configuring the rewrite rule it says to add:
Rewrite URL: http://{C:1}/{R:0}
If my understand is correct in my case I will want to do something like
Rewrite URL: http://mywebsite.sl.vendor.com/{C:#}
Where {C:#} will return "es" or whatever the language the URL is going to.
My questions
1. Is my rewrite understanding correct?
2. Do I have to configure the Server Farms?
I noticed that by installing ARR, "Server Farm" is now available for configuration, but not sure if there is anything I need to do there.
1. Is my rewrite understanding correct?
No, since I wanted to match the two letter country codes the Patter should be:
^([a-z]{2}/(.*)|/[a-z]{2}$)
And the Rewrite URL under Action Properties should be:
https://mywebsite.sl.vendor.com/{R:0}
{R:0} will be the back-reference of specified pattern so an incoming request for mywebsite.com/es/ will be proxy passed as mywebsite.vendor.com/es were {R:0}=es/ as expected
2. Do I have to configure the Server Farms?
Is not require to do any special configuration in the server Farms to get the forward proxy working.
The third party service I was forwarding the request to, require to have the host header to be the server forwarding the request in this case mywebsite.com but in their end they were receiving mywebsite.vendor.com, to accomplish this you have to set the property preserveHostHeader to true, this can be found in the Configuration Editor
Related
I have an IIS webserver running a website. I've installed ARR3 to enable routing rules.
I'd like to redirect all the incoming request for the URL .mydomain/url2redirect/ to an Apache server installed on the same machine where is running SVN.
So in the inbound rule definition I've inserted the following:
Input: URL path after '/'
Pattern: *.mydomain/url2redirect/*
Action Type: Rewrite
Action URL: https://ip-address:8080/{R:2}
By testing the pattern, I get the desired result, and in the R:2 back reference I get the requested page I need to pass to SVN, but I get always a 404.
"url2redirect" doesn't exist but it should captured by the URL rewrite and forwarded to the Action URL.
I've added any outbound rule. Should I have to add something? what?
I've tried also to add a Reverse Proxy Rule, using the ARR template but, it's completely ignored, therefore I think that the routing is not working at all on IIS.
As far as I know, the url rewrite rule Pattern doesn't match the domain part.
That means mydomain will not include in the Pattern.
If you want to match the url2redirect, you should use below pattern.
url2redirect(.*)
Then I suggest you could modify your action url as below:
https://ip-address:8080{R:1}
In IIS I've set up a basic URL Rewrite with an Inbound rule to perform a Rewrite action to another domain:
Pattern match: ^somedirectory/(.*)
Action type: Rewrite
Rewrite URL: http://www.google.com/{R:1} (using google just as a test)
The problem is, how can I actually see what the server has rewritten the URL to? When I check the IIS logs (I have "Log rewritten URL" option ticked), I would expect to see www.google.com somewhere - but it's nowhere to be found.
The pattern is definitely matching because I get the error: "502 - Web server received an invalid response while acting as a gateway or proxy server."
How can I see what is going on behind the scenes (how IIS has changed the request)?
One way is to enable "Failed Request Tracing" is IIS.
For the status code choose a range like 100-999 to capture all requests (even non-failing).
IIS will create an XML file for each request to a log directory. The XML can be viewed nicely within Internet Explorer (try the compact view tab).
I'm trying to achieve wildcard hostname mappings in IIS 8.5. As they don't exist, I'm trying to use URL Rewrite.
I have two formats of URL,
<anything>-foo.mydomain.com
<anything>-bar.mydomain.com
I want to map these to two different sites in IIS, for example
<anything>-foo.mydomain.com --> foo.mydomain.com/<anything>
<anything>-bar.mydomain.com --> bar.mydomain.com/<anything>
I'm trying to configure a URL Rewrite rule at the machine level, but I've got some problem.
If I set it to Redirect it works. If I set it to Rewrite I get an IIS 404.4.
Can anyone shed any light on this?
Here are my settings:
http://cl.ly/a6tK
You can only rewrite the URL to the same site and same application pool. For example:
http://foo.com/bar to http://foo.com/
You need to install Application Request Routing and enable Proxy. Then it will work with URL rewriting to remote servers (regardless where or what they are) since the routing will take care of that.
http://www.iis.net/downloads/microsoft/application-request-routing
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.
Is it possible to manipulate an inbound request at the IIS level, before it even gets assigned to site on the server?
Essentially, I want to rewrite this --
www.somegenericdomain.com?site=someotherdomain
To this --
www.someotherdomain.com
And I need to do this before IIS picks which site the request belongs to, so I need to change the host header prior to this point.
Possible, or crazy? We're running IIS7.
You can rewrite, redirect, or proxy requests.
Rewrite changes the request, but does not change the site to which it is assigned. With a rewrite you can:
return an HTTP error code (503, 404, 401, etc);
manipulate the query string or URL path. one example is to transform a query string param into a URL path element. www.server.com/default.aspx?s=foo becomes www.server.com/foo, or vice versa.
set headers in the request.
Redirect sends back a 301 or 302 response to the browser with an updated address. You can receive a request for www.example.com/foo and respond to the browser with a 302 and an updated address of www.otherdomain.com , etc.
Proxy the request. In this case the web server is said to act as a "transparent proxy". It means the initial IIS server can call out to a second server, grab the response, and then package it up back to the original requester.
These three actions are often done in combination. The tools used to perform these actions are called "URL Rewriters". IIS7 has a built-in option from Microsoft (The IIS URL Rewrite Module), and there are third-party options as well, some free and some commercial, for IIS6, IIS7, and other non-Windows web servers. Apache's mod_proxy is the big one for Linux. All of these tools do basically the same kinds of things.
To answer your specific question, NO, you cannot rewrite a request from one domain to another. For web servers, rewrite is a meaningful term, and a URL Rewrite excludes the possibility of a server change.
It is possible though, to transform a request from one server to another, either via redirect or proxy. One of those may actually be what you want, when you ask about "rewriting" a request.
I guess the whole thing is possible, but not in the way of running before IIS. One part of the server even works as a low-level driver.
But you may use URL rewriting solutions such as mod_rewrite module of Helicon Ape http://www.helicontech.com/ape/doc/mod_rewrite.htm. Having set the software globally for all the sites, you may get what you need as follows:
RewriteEngine on
RewriteCond %{HTTP_HOST} www.somegenericdomain.com [NC]
RewriteProxy (.*) http://www.someotherdomain.com$1