I met a problem with the Search scope on a MOSS 2007 farm the other day that I thought was worth blogging about.
On all the content sites of our farm, the “All Sites” scope worked as expected, but the “This Site” or “This List” search scopes wouldn’t return a single result.
There are several reasons that can explains this problem according to this technet forum thread (http://social.technet.microsoft.com/Forums/en-US/sharepointsearch/thread/906045d8-8782-4c39-be1b-7632f7239019/#page:1), in our case the problem was due to a difference between the Content Source defined for the crawl and the default zone defined in the Alternate Access mapping.
Our Alternate Access Mapping for this zone was defined as follow:
Private URL | Zone | Public URL |
http://hostname | Default | http://hostname |
http://intra.dnsname.com | Intranet | http://intra.dnsname.com |
And we used http://intra.dnsname.com as the start address for the crawl.
We tried changing the content source start address from http://intra.dnsname.com to http://hostname, resetted the crawl content and launched a full crawl and that was it. The “This Site” and list scopes worked perfectly from then on.
That could have been it, except that this change caused another problem. Before this modification we had no trouble with links URL, I mean if I used http://intra.dnsname.com to reach the site, all the links in the pages would use this dns name, not the hostname. After the modification of the content source however, some search results would sometimes be presented with the hostname in the url instead of the dns name.
To solve that problem we changed the Alternate Acces Mapping configuration to:
Private URL | Zone | Public URL |
http://hostname | Default | http://intra.dnsname.com |
http://intra.dnsname.com | Default | http://intra.dnsname.com |
Voila! The Site and List scopes are working and the URL are always based on the DNS name when someone uses the DNS name to reach to site.
By the way, you might find this article about Alternate Access Mapping very useful: http://blogs.msdn.com/sharepoint/archive/2007/03/06/what-every-sharepoint-administrator-needs-to-know-about-alternate-access-mappings-part-1.aspx