Solved

Web Service Request Using localhost in the URL gives 404 error

Posted on 2006-11-03
5
628 Views
Last Modified: 2007-12-19
System:
     IIS 5.0 Windows 2000 Advanced Server.
     ASP.NET 1.1
     Multiple Layers of web services, all running on the same server.

I recently was making a minor change to a web service that had not been changed for about a year. I could not get the changes to work. I tried restoring the old source files and I still could not get it to work.

I eventually figured out that the URL I had been using for the last 3 years was causing the problem. Web service WSA called web service WSB using a dynamic URL: "http://localhost/WSB/WSB.asmx".

When I changed "localhost" to the name of the machine that both web services are on, it worked. When I changed "localhost" to "appserver", which is the string just below "localhost" in my System32\Drivers\Etc\hosts file, and which also resolves to 127.0.0.1, it also works.

When I use "localhost", I get a 404 error, and the error I get indicates that instead of looking in the directory which is defined for the application: C:\WebStuff\WSB, IIS is looking in C:\inetpub\wwwroot\WSB.

What is going on here? I am assuming that the application WSA, or at least the Web Service Proxy, had not been recompiled for over a year, and by refreshing the web service reference, I cause that recompile. But, the URL is not compiled in, it is specified at runtime.

Thanks,
David
0
Comment
Question by:anyoneis
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
  • 2
5 Comments
 
LVL 16

Expert Comment

by:manav_mathur
ID: 17869499
Have yo uenabled virtual servers in IIS??
0
 
LVL 11

Author Comment

by:anyoneis
ID: 17871322
No. These web services are located on the default web site.
0
 
LVL 16

Accepted Solution

by:
manav_mathur earned 500 total points
ID: 17871341
0
 
LVL 11

Author Comment

by:anyoneis
ID: 17875528
Hmm. Well, now that you mention it... there is another web site defined called localhost. Perhaps what happened was that someone enabled it and caused my problem. If I understand virtual servers correctly, this site would get all messages referencing localhost, using the host header mechanism. But, how could it just pop up as a problem.

i am running off to ASPNET Connections for a week, so I'll look back into this in a week. Thanks for your ideas!

David

0
 
LVL 11

Author Comment

by:anyoneis
ID: 18034296
I haven't had time to test this, but I am fairly confident that manav_mathur's hypothesis is correct. So, let's close this!

Thank you!
David
0

Featured Post

Independent Software Vendors: We Want Your Opinion

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Today I came across an interesting issue that had me pulling my hair out.  I was troubleshooting a new internal web site which uses integrated security instead of anonymous.  When browsing the site from my laptop, I was able to access it with no iss…
Running classic asp applications under Windows Server 2008 R2 (x64) and IIS 7 is not as easy as one may think. It took me a while to figure it out while getting error 8002801d a few times. After you install the OS you will need to install the fol…
This is a high-level webinar that covers the history of enterprise open source database use. It addresses both the advantages companies see in using open source database technologies, as well as the fears and reservations they might have. In this…
If you're a developer or IT admin, you’re probably tasked with managing multiple websites, servers, applications, and levels of security on a daily basis. While this can be extremely time consuming, it can also be frustrating when systems aren't wor…

690 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question