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23 October 2009
WWW Service not listed in the Services console (IIS 6.0)?
This post is a continuation to the series on IIS service startup issues. I did not feel like writing it since we haven’t seen much cases on this type of behavior and I thought this could be one of those rare issues which always happens with IIS but my Read More...
0 Comments  
03 July 2009
Required permissions when calling a Web service using client certificate for authentication in an ASP.NET Web application
A Web service requiring Client certificate authentication is a common scenario. You may have a client application which needs to send the Client certificate as part of the web request for accessing the web service. This client application may be a Windows/Console Read More...
7 Comments  
13 June 2009
Avoid this confusion around Client certificate mapping in IIS 6.0/7.0
I just wanted to add this quick post around Client certificate Mapping on IIS. This is focused on 1-to-1/Many-to-1 mapping in IIS 6.0/7.0. If you are interested to know more about configuring Client certificate mapping in IIS 6.0 please check this post Read More...
0 Comments  
07 March 2009
Some Info around WebDAV content access issues
If you have a Web folder (WebDAV) hosted on IIS using Basic Authentication there are a few things you need to ensure such that any client accessing the resource does not get into failures. If your WebDAV site is restricted using Basic authentication and Read More...
1 Comments  
17 February 2009
Increase the concurrent connections limit for IIS FTP site if you see server reset
If you have a FTP site hosted on IIS which receives a burst of client connections at specific intervals and you see the connections getting reset from server-end please read on. Let's say you have over 1500 concurrent FTP client connections being made Read More...
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16 November 2008
Who knows! You may be missing these points for Kerberos authentication failures for Web applications...
I am sharing here some of the general + elusive + ignored + must-have info that you may want to recheck when you are troubleshooting a kerberos cum delegation failure scenario and feel like reaching nowhere near the end of the tunnel (resolution!). These Read More...
3 Comments  
25 July 2008
Some tips if your IIS 6.0 World Wide Web Service (WWW) ever goes down...
Well, every time I try writing some thing different than IIS and for some reason I come back to it :-) Here is a quick troubleshooting tip for a scenario where World Wide Web service on my test IIS 6.0 box went down for no apparent reason. Here is what Read More...
4 Comments  
27 May 2008
SSL Troubleshooting for IIS Web Sites contd...
Recently a colleague of mine was working on a customer's case which was a Critical level incident. High pressure job, huhh! The issue was with SSL not working for one of their web sites. They were seeing "Page cannot be displayed" when trying to access Read More...
14 Comments
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03 April 2008
Unable to access IIsCertMapper object through ADSI
Today, I was working on an issue where we were trying to add mapping for client certificate for a windows account using ADSI and VBScript. Something similar as below: <% Dim CertObj, vCert vCert = Request.ClientCertificate("CERTIFICATE") Set CertObj Read More...
7 Comments  
04 October 2007
Troubleshooting FTP related issues on IIS 6.0
Troubleshooting FTP related issues on IIS can be a real pain. If you have not encountered so far you are lucky:-) What I do generally is to create a new FTP site and make it to work rather than working on the already corrupted site. It depends on your Read More...
7 Comments
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05 September 2007
Troubleshooting SSL related issues with IIS
In this post I am going to discuss troubleshooting SSL server certificate related issues in IIS. Please remember I am no SSL expert...I am an IIS Asp.Net guy and will discuss issues with regard to SSL with IIS. We have seen a lot many times that the issues Read More...
34 Comments
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02 August 2007
IIS ADMIN service fail to start?
An issue that causes a lot of headache to Web Admins is when IISADMIN service does not start up for no reason. Here are a quick troubleshooting steps you can do before you look around and yell for help or call into Microsoft Product Support services and Read More...
9 Comments  
01 July 2007
Troubleshooting Anonymous authentication failures in IIS
Recently I was checking MSDN and KBs for a quick check on troubleshooting anonymous authentication, and sadly I could not find a single article devoted to it (that's strictly my personal experience). We often get calls on issues related to Anonymous authentication Read More...
20 Comments  
09 June 2007
Client Certificate revisited....How to troubleshoot client certificate related issues
Well, I am back to Client certificate again, guess the reason being a lot of support calls that we getting off late are related to any of the following four errors, especially the first two. 403.7 403.13 403.16 403.17 ( I will cover .16 and .17 very briefly Read More...
20 Comments  
29 January 2007
Kerberos troubleshooting from IIS perspective
Hi All, This is my first posting in the blog. I really had to take enough courage to start blogging, but with some help from one of my mentors in MS, I am finally here. I hope people really get benefitted from the articles that I post in here. Today, Read More...
5 Comments  
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