IIS is Internet Information Services, the web server included with Microsoft's Windows Server operating systems. This is a generic tag. Wherever possible please use a *version-specific* tag, such as [iis7], [iis7.5], etc.

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6
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2k views

IIS 7.5 - Disable Overlapped Recycle property not being obeyed when web.config is updated

I have a site which holds an exclusive lock on some resources. I used the .NET Application_Start and Application_End events to aquire and release the lock on these resources at the appropriate time. ...
5
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0answers
312 views

Risks of setting noCompressionForHttp10 and noCompressionForProxies to false

We recently switched to Amazon Cloudfront for static content. It seems that Cloudfront does HTTP 1.0 requests to the origin server (IIS 7.0) using the Via header. By default IIS 7.0 disables file ...
4
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0answers
73 views

Windows Authentication to a Remote Server within an Intranet Environment

I have several servers (all on the same DC) within an Intranet environment at my company. For simplicity, I'll focus my question on the IIS and SQL Servers. I have an IIS 7.5 web server and a remote ...
4
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0answers
40 views

IIS 7.5 not rolling over logs hourly

I have six IIS 7.5 web servers deployed using a Shared Configuration. The properties for the logging in the configuration are set to log Per Site, W3C, and on an hourly schedule: For five of the ...
4
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0answers
177 views

IIS - CPU Usage Gradually Increases Over Several Days Until 100%

The picture explains it all. We have had a problem with an IIS MVC 5 website hosted on Microsoft Azure over the last several months. The site appears to continually eat up CPU over a few days until ...
4
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0answers
6k views

Error connecting to MS SQL from one server but not the other

We got a MS SQL server and two web site servers. I'm in the process of moving all the sites from one of the web site servers to the new one. My asp.net sites are not able to connect to the external ...
4
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0answers
471 views

ARR reverse proxy to Azure Website inside Azure Cloud Service

I am trying to rewrite www.contoso.com/blog/ to a wordpress Azure Website (contosoblog.azurewebsites.net). I have completely configured all inbound and outbound rules, and have tested them locally on ...
4
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0answers
201 views

Windows 2003 IIS 6.0 w3wp PerfMon monitoring

We have a number of web applications set up as Virtual Directories under one web site on Windows 2003/IIS 6.0 servers. Each VirDir has a dedicated App Pool. One of my users wanted to know if I could ...
4
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0answers
529 views

IIS 6.0 SSL handshake error

Hi all I installed a trusted certificate in an IIS 6.0 server. I have the port 443 opened in the firewall and I verified the server is listening on that port. However when verifying using openssl I ...
4
votes
0answers
670 views

IIS7 proxying VisualSVN server refuses to allow Web.config files to be committed

I use IIS 7.5 with the Application Request Routing and URL Rewriting modules to act as a reverse proxy for several apache-based web sites, including VisualSVN Server. I'm having a problem when I try ...
3
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0answers
37 views

IIS 500.19 error on 0.01% of requests

We have deployed a simple ServiceStack application delivering Podcast RSS-feeds in IIS 7. Scouring the IIS logs, we found that a tiny amount of the requests get a HTTP 500.19 error code. Of the ~550 ...
3
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0answers
717 views

How do I reduce the threads per process limit for an ISAPI app under IIS 7.5

I have a python WSGI application running under an ISAPI extension in IIS 7.5 on Windows Server 2008. I would like to increase the number of worker processes (which I know how to do) and reduce the ...
2
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0answers
95 views

Adding extra IP to NIC causes connectivity issues for main IP (Win Server 2012 / IIS)

I am experiencing a very odd situation: I have set up 8 IP addresses in a single NIC (plus it's main IP) for use as a web server - and have 8 websites happily running in IIS8. (The server in ...
2
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0answers
192 views

Is websocket reverse proxy possible with IIS 8.5 & URL rewrite 2.0?

I installed Tomcat as a java app server behind IIS. Using the following rules I can rewrite static pages just fine, but alas, websocket connections are never established: <?xml version="1.0" ...
2
votes
0answers
248 views

Network Load Balancing 2003 to 2012 R2 Upgrade

We currently have a 3 node windows 2003 NLB cluster running in Multicast mode, for a IIS web cluster. We want to upgrade to 2012 R2. About 15 sites/IP addresses total. Can you run 2012 R2 nodes in ...
2
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0answers
138 views

IIS seems to think I have duplicate Custom Headers defined; complains about it

I am a software developer and I debug a website on my local machine in IIS 7.5. Recently I experienced problems with my machine that would not go away, so I backed up, formatted, resintalled Windows ...
2
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0answers
106 views

Delayed requests when using ARR with IIS 8.0 on Windows 2012

I've got a setup on Windows Server 2012 R2, using IIS8.0 which passes certain requests through to a custom backend using Application Request Rerouting. The backend is only listening on IPv4 on port ...
2
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0answers
74 views

IIS7.5 periodically stops serving static files

I have a website with an index.html file (that contains an html/javascript application) that leverages a json rest api(asp.net webapi in the same website) for data. Periodically, IIS will start ...
2
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0answers
68 views

CA is repeated in IIS https response, what is the configuration section to be checked?

This is about the https of the payment service provider we're using. We've notified them about the problem which causes some android devices to show SSL error message when the browser is redirected to ...
2
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0answers
99 views

Restrict access to a subdomain with web.config on IIS7?

I need to password protect a "dev" subdomain on a server with the web.config file on IIS7. I don't have access to anything besides the files and web.config, so I can't install modules or anything else ...
2
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0answers
181 views

Use appcmd.exe to enable gzip compression on dynamic content on IIS 7.x

Every doc I can find discusses editing applicationHost.config in notepad to enable this. The real need: a) Via appcmd.exe or cmd line tool, enable dynamic compression to be configured in web.config ...
2
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0answers
311 views

how to configure IIS 7 so partial content requets/range requests on mp4 static files work.

I need help on how to setup IIS 7 so it can handle partial requests/range requests for serving mp4 files so Chrome can position seek and loop video. From what I have read IIS is supposed to support ...
2
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0answers
297 views

IIS7 ISAPIModule Intermittent Error 500 - Incorrect Function

I'm attempting to diagnose an intermittent failure of a web application. I've enabled failed request tracing, and have collected logs. The error I'm encountering is: ModuleName="IsapiModule", ...
2
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0answers
502 views

lvs with NAT routing - horrible performance to one real server

I have an LVS setup with NAT routing and two real servers (as an FYI, we're only routing http on tcp port 80). Currently requests to real server A respond just fine, with page load times of 3-4 ...
2
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0answers
311 views

IIS6 Web Extensions change to prohibited after iisreset or server reboot?

We run IIS6 in 64-bit mode on a 64-bit server. I'm trying to allow the .net 2.0 extension to run and prohibit the 32-bit version. See below screenshot for context: However, after a reboot or ...
2
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0answers
300 views

Deploying a ASP.Net WebAPI website and DMZ

I have a set of RESTful services developed using ASP.Net WebAPI which is a single project. I handle authentication via ASP.Net's built in Forms Authentication (cookie based) mechanism which is also ...
2
votes
0answers
230 views

ASP.NET directories blocked from VisualSVN Server behind reverse proxy in IIS 6

I’ve got VisualSVN Server running behind a reverse proxy in IIS 6, Windows Server 2003. This isn’t ideal, but for the main web app on the server I’ve only got one IP address and SSL certificate ...
2
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0answers
127 views

Windows Web Farm Framework Memory Allocation Issue

We have a web farm running two servers (W2K8 R2). Let's name them web01 and web02. Web01 has no problem, but web02 has a strange memory allocation problem with the WebFarmAgentService. For unknown ...
2
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0answers
756 views

Is it possible to use local web.config to enable keep-alive?

Is there any way to enable keep-alive on IIS 7 in a hosted scenario? I attempted to use the answer to this SO question Where (or how) is the keep-alive setting in web.config?. I added the following ...
2
votes
0answers
200 views

Can I include the path and query string in an IIS “Error Pages” redirect?

I'm setting up a custom 403.4 handler so that non-SSL requests to my site are redirected to a different URL - and what I'd like to do is to include the script path and query string in the redirect, so ...
2
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0answers
162 views

IIS Reverse Proxy Rewrite Rule usage monitoring

How can I display stats for each Rewrite rule in IIS when using it as a reverse proxy with ARR? We use 'Orenosp' Secure reverse proxy for some of our networks but use IIS + ARR for others and one of ...
2
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0answers
89 views

Login challenge missing after migrating asp website from .net 2.0 to 4.0

I'm upgrading an old internal website from .net 2 to 4 using this procedure from msdn. I mostly got rid of .net assembly references in the web.config and switched the DefaultAppPool. However when I ...
2
votes
0answers
293 views

Forcing IIS virtual smtp server to verify outgoing TLS certificate

I am in a situation where a web application is using the IIS virtual SMTP server to send out email. The IIS virtual SMTP server is then configured to send all mail out through a smarthost, over TLS ...
2
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0answers
266 views

Setting PHP remote write permissions in IIS7

I have two windows server 2008 servers. One is a web server one is a file server. A php script runs on the web server and is supposed to write to the other server. I am getting a permissions error. I ...
2
votes
0answers
670 views

Content Encoding Error on new IIS 7 server with PHP

I recently moved a PHP (Cake framework) development site from an IIS 6 (x86) server to an IIS 7 server (x64). The content is all the same and the URL rewriting works, but on the attempt to display the ...
2
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0answers
396 views

IIS/VS2010 Web Deployment gives 404

I use 1 click publish to a few servers to deploy website from VS2010. All servers are running IIS7 under Windows 2008R2. 1 server is a bit special because it listens to port 80 but the firewall will ...
2
votes
0answers
448 views

What does Http.sys count as part of the request when it logs RequestLength in Httperr.log

On Windows Server 2003 with IIS 6.0, I am seeing that Http.sys blocks some incoming requests. Http.sys logs RequestLength in Httperr.log and returns status code 400. I have found an description ...
1
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0answers
27 views

External Access to Internal Network and Websites — Microsoft Networks

I need to be able to expose a set of "internal" web sites to Internet users somehow. Please bear with me as network engineering isn't my forte. I'd appreciate any insight or suggestions to this task. ...
1
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0answers
20 views

IIS hanging when running Active Reports, possibly splwow64.exe

We have a Windows 2008 R2 web server running our web app on IIS and when running a particular page which generates a PDF (using Active Reports https://activereports.grapecity.com/) it takes between 1 ...
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0answers
53 views

OWA stopped working suddenly exchange 2010

My OWA is suddenly not working for internal and external mail. Is there any way to find a solution for this problem? Here is the Microsoft Outlook connectivity test result: Testing Outlook ...
1
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0answers
14 views

Why doesn't my IIS module mapping configuration show up in applicationHost.config?

I have the following structure: myServer Sites Default Web Site myVirtualDirectory myApplication <- added to handler Mappings here Under ...
1
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0answers
31 views

IIS 7.5 - Windows Authetication FQDN

Currently, I have to implement an auto login function for my mediawiki and I have enabled windows authentication on my IIS 7.5. It is working on localhost without any prompt. However, when I tried ...
1
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0answers
19 views

MS Webdeploy V3 encryptPassword correct usage

I have installed MS Webdeploy (Version 3.5) on both my ("old") Server 2003/IIS6 and ("new") Server 2012/IIS8. Currently, I am following the guidelines in the article here, backing up the Target ...
1
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0answers
33 views

HTTP Strict Transport Security (HSTS), Azure and HTTP Strict Transport Security IIS Module

Question: How do you properly install and configure HTTP Strict Transport Security (HSTS) in an Azure website? Apparently for IIS the method to use is to install this module: ...
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0answers
31 views

IIS 7.5 stops serving external requests randomly

Running IIS 7.5 on Windows 2008 R2. 1-~10 times a week, usually over the weekend, our website will stop responding to external requests. I keep a browser window open on the server pointed to the ...
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0answers
36 views

Browser shows IIS Error Messages with WebSphere error messages below

I am working on an environment (external) where IIS is the web server and WebSphere is the application server. I have noticed that the error messages (Ex. 403, 404) show both IIS error messages as ...
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0answers
132 views

IIS Worker Process Thread Count

I've seen this question asked but the answer given was either insufficient or unrelated. I feel like this is a pretty simple question(s). We have a Classic ASP app running on IIS7.5 on a Windows 2k8 ...
1
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0answers
142 views

First request after a while always slow - ASP.NET MVC / IIS 8.5 / Windows Server 2012 R2 VPS

I'm hosting a low-traffic ASP.NET MVC 5 application on a VPS with Windows Server 2012 R2 / IIS 8.5, with 1 GB of RAM. My problem is that the first request after some time without any requests always ...
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0answers
22 views

IIS 8, Shared Configuration and server specific HTTP Header

Is it possible in IIS 8 use Shared Configuration and set an HTTP Header for each server with a different value?
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0answers
121 views

Running a web service from a Win 2012 R2 Hyper-V Host - xDoS prevention

Here's the scenario. We have a Windows Server 2012 R2 Hyper-V Edition hosting three NLB 2012 R2 web servers with our product on them. They receive XML data from connected public servers and work ...