Config Help for Server2003/sql2000/iis6 Reporting Services

Newbie alert. Need some configuration help please. Have web server with 3
websites on box above with same ip using host headers (well-established sites
working fine). Installed reporting services, went to one website and created
virtual directories with IIS to same folder/name as items under Default Web
Site. Authentication is set to IUSR_svrname, Integrated Windows on website
and virtual directories.
Created a basic report & deployed to http://serverName/reportServer. I can
view report by url similar
to:http://serverName/Reportserver?%2fFolderName%2freportName&rs:Command=Render Data connection and report retrieval is fine.
But, I need folks to be able to enter the www.domainname.com type of url and
that gives me a HTTP Error 403.8 - Forbidden: DNS name of the client is
rejected. As soon as I remove the report services part of the url, site
pops up fine. And, if possible, I'd like to be able to use more than one of
my domains, just referencing the virtual directory in IIS for each site.
Also, I cannot get to the http://serverName/Reports/Pages/Folder.aspx to set
roles and permissions because it only sees me as IUSR and I can't "see"
anything under that role. Even though I'm a domain administrator, believe
it's seeing me as IUSR.
Tried a few things but may be making it worse. Thanks for any advice-would
really like to be able to use this tool, but can't at this point.Update - think I'm really close, but still need help. Uninstalled,
reinstalled RS. Deployed sample. Added <ReportServerExternalURL>
http://www.domainname.org/Reports </ReportServerExternalURL> to
rswebapplication.config Deployed.
Created new role for IUSR_MachineName and gave it browse capabilities on
home folder.
Added virtual directory is IIS under web site above for Reports, with
documents of home.aspx and enable IUSR in IIS for directory. (Deployment is
still okay.) If I view Reports via machinename, site settings are there.
Browse to folder, click on report, the folder pops up again. Report will not
generate. If I view via www, site settings are not there (good, good).
Report does the same thing - popping up another folder view but not
generating.
Added virtual directory is IIS under web site above for ReportServer, with
document sof default.htm, default.asp, index.htm, iisstart.htm, default.aspx.
Same thing happens again.
Think I'm very close. Anybody?|||Finally got a reply on another forum so thought I'd pass it along. Even
though the documentation explicitly says:
"To access a report server on the Internet, you must add a
ReportServerExternalURL configuration setting that specifies the fully
qualified domain name of the report server. The external client uses this
value to access a report server. In this scenario, the browser that is
hosting Report Manager must send a fully qualified domain name when making
requests on behalf of Report Manager to the report server. The following
example illustrates the syntax for ReportServerExternalURL:
<ReportServerExternalURL> reports.adventure-works.com
</ReportServerExternalURL>"
When I replaced the UI with the following, things started rendering properly.
<UI>
<ReportServerVirtualDirectory>/ReportServer</ReportServerVirtualDirectory>
</UI>
Hope it helps out someone else.