While creating MySite today, i encountered the following error,

HTTP/1.1 404
Connection: close
Date; Tue, 16 Sep 2008 05:04:43 GMT
Server: Microsoft-IIS/6.0
MicrosoftSharepointTeamServices: 12.0.0.6219
X-Powered-By: ASP.NET

This error occurs because the SharedService is not properly configured. You can resolve this error by correcting the SharedService or by creating a new SharedService for this site from Central Admin.

I just created a new SharedService from the Central Admin and associated this site with that SharedService and MySite was created

Today I was working on creating a new sharepoint site, and after creating the site from the central admin, I got the following error:

HTTP/1.1 404
Connection: close
Date: Tue, 16 Sep 2008 05:09:29 GMT
Server: Microsoft-IIS/6.0
X-Powered-By: ASP.NET
MicrosoftSharePointTeamServices: 12.0.0.6219

I searched on the error and found the following solution, so just wanted to
share the solution with you guys.

Make sure you reset the IIS after creating the site in central admin. Run the following command
to reset IIS “IISRESET /NOFORCE”

After resetting the IIS run the following command

“C:\PROGRAM FILES\COMMON FILES\MICROSOFT SHARED\WEB SERVER EXTENSIONS\12\BIN\STSADM.exe” -O CREATESITE -URL http://servername -OWNEREMAIL <e-mail> -OWNERLOGIN <domain\username>

You can get more details on this command using the following command,

C:\PROGRAM FILES\COMMON FILES\MICROSOFT SHARED\WEB SERVER EXTENSIONS\12\BIN\STSADM.exe -help CreateSite

After executing this command you can access your site. You will be asked for the site template to be applied to the site and also the members that will be able to access the site.