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Questions tagged [arr]

Acronym of Application Request Routing - an extension for IIS7.0+ to load balance HTTP requests to multiple web servers.

Application Request Routing (ARR) is free extension for IIS7.0+ to provide load-balancer and functionality. The purpose is increase Web application scalability and reliability through rule-based routing, client and host name affinity, load balancing of HTTP server requests, and distributed disk caching.

ARR has several features:

  • Reverse proxy/web publishing
  • Support multiple load balancing algorithms
  • Health checking
  • Caching
  • Content delivery network (CDN)
  • SSL Offloading
  • Layer 4 and 7 routing decisions
  • Usage reporting
  • Cookie based affinity
  • Application affinity opt-out
  • Rich API
  • Websocket support

ARR manual can be found in official IIS homepage.

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Bad request 400 Error when using parent cache node

I'm trying to design a load balancing system with a parent cache. I have 2 Child Cache servers with ARR and Network load balancing features installed. (vServer2008-1: 10.7.10.90, vServer2008-3:10.7.10.91). When i setup the Network Load Balancing…
syloc
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Redirect web site request to a specific server in the farm with ARR

i currently use ARR (Application request routing) with a server farms of two server. My ARR is not currently setup with Host name affinity, but i would like to create a rewrite rule to redirect a specific web site request to a specific server in my…
Cédric Boivin
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Application request routing and load balancing

I use Application request routing in my farm environnement. I got 2 ARR server and 2 IIS server in my farm. I configure my routing to load balance request even to my iis server, but when i look worker process in my farm server, only one server…
Cédric Boivin
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IIS 7.5 and ARR 2 Reverse Proxy

I'm setting up a Tomcat app running on https://localhost:9443/ on Windows 2008 R2 and I want to put it behind a reverse proxy. I've installed the Advanced Request Routing 2 package from Microsoft, and on the main server node I see a new option…
dragonmantank
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IIS ARR 3.0 - Change Base Url in Web API Response body using Url Rewrite

I have a local IIS server hosting Asp.net Core 3.1 web API running at port 5000. Using wireguard the local server is connected with the public facing server. The public facing server also has IIS 10 with ARR3.0 enabled & have the site created as…
AbhiAbzs
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4D app with https via IIS reverse proxy not working

I am trying to set up a simple reverse proxy for http and https for a 4D app running on a windows server 2012 R2. I got http working but not https. When I open the public firewall and access the 4D app directly https is working fine. Could someone…
KarlAlois
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IIS ARR - Route single request to multiple servers/sites

We have a unique situation with a vendor in which they only allow 1 address for PRD traffic and 1 for Non-PRD traffic. Internally, we need to be able to test in 2 environments (call them TST1 and TST2). Since they only allow 1 URL for TST, I figured…
Wes
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ARR works for Non-SSL, but fails for SSL

Windows Server 2016, IIS 10 I'm trying to setup a zero downtime code promotion environment and using a server farm on the same server to do this per some other articles I've found as an example. I'm a developer, not a Windows Admin, so I'm…
crichavin
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Cloudflare blocks our "between subdomains" url rewrites with a 403 due to X-ORIGINAL-URL header(CVE-2018-14773)

Question: How to remove the X-ORIGINAL-URL header in Azure ARR? Cloudflare blocks our "between subdomains" url rewrites with a 403 due to X-ORIGINAL-URL header (CVE-2018-14773). We are using an applicationHost.xdt file and rewrite rules in…
user14142426
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IIS ARR return 404

I am doing some experiments with k8s cluster which I have on my own private server. but I have some issues. First of all my infrastructure: I have public static IP, and wildcard domain in DNS (i.e. *.k8s.myperttydomain.com bound to X.X.X.X). I can…
Anatoly Kryzhanovsky
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Routing Rules icon in Microsoft ARR 3 - Server Farm Section Does not exist

I want to implement Application Load Balancing by Application Request Routing - ARR3 on IIS8. I download ARR3 Source file and install on my server. the server farm section created in my iis but when I check the ARR modules it includes Cacheing,…
Milad Habibian
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IIS 10 ARR : Client certificate not interpreted by backend server

I've made an IIS 10 with ARR on a DMZ windows server 2019 not domain joined to reverse proxy to OWA (exchange 2016) with client certificate authentication. I get error 402.1. Here's some details. On ISS ARR side, In GENERAL_SET_REQUEST_HEADER, i can…
Alex Lum
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Dealing with duplicate requests in IIS that cause unnecessary load

I have an API that has a CheckStatus inquiry. Once the client has been given a final status by CheckStatus they are supposed to stop polling the API for status updates, but inevitably they dont! The duplicated requests cause unnecessary load (up to…
Jimbo
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IIS ARR redirect error 502.3

I'm trying to route HTTPS requests for domainname.com to an Apache backend webserver using ARR. The client is able to connect to ARR server just fine over HTTPS; the problem is when the ARR tries to fetch the site data from the apache webserver, it…
joebegborg07
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Erro 502.4 configuring load balancer with IIS server Farm

I'm trying to do the follow configuration with IIS SERVER02 - Run two sites (SITE_A with anonymous Authentication, SITE B with WIndows Authentication) SERVER03 - Run two sites (SITE_A with anonymous Authentication, SITE B with WIndows…
Joao Vitorino
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