Access denied when crawling with host headers

Hi Guys,

Today i was doing my search setting at customer site and while crawling contents, in crawl log its says access denied to my portal url.

Actually my scenario is where I have 2 NICs attached to server with 2 different host headers configured in IIS. All the neccessary DNS records were created to point all requests to these 2 host headers as well.

So i discovered the reason for access denied when crawling and found the following artichle on Microsoft website, hope this will be helpfull for technical professionals in SharePoint 2007.


Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:

How to back up and restore the registry in Windows
http://support.microsoft.com/kb/322756/


To work around this issue, set the DisableStrictNameChecking registry entry to 1. For more information about how to do this, click the following article number to view the article in the Microsoft Knowledge Base:

Connecting to SMB share on a Windows 2000-based computer or a Windows Server 2003-based computer may not work with an alias name
http://support.microsoft.com/kb/281308/


Then, use one of the following methods, as appropriate for your situation.


Method 1: Specify host names
Note We recommend that you use this method.

To specify the host names that are mapped to the loopback address and can connect to Web sites on your computer, follow these steps:

1. Click Start, click Run, type regedit, and then click OK.

2. In Registry Editor, locate and then click the following registry key:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa\MSV1_0

3. Right-click MSV1_0, point to New, and then click Multi-String Value.

4. Type BackConnectionHostNames, and then press ENTER.

5. Right-click BackConnectionHostNames, and then click Modify.

6. In the Value data box, type the host name or the host names for the sites that are on the local computer, and then click OK.

7. Quit Registry Editor, and then restart the IISAdmin service.


Method 2: Disable the loopback check
Follow these steps:

1. Click Start, click Run, type regedit, and then click OK.

2. In Registry Editor, locate and then click the following registry key:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa

3. Right-click Lsa, point to New, and then click DWORD Value.

4. Type DisableLoopbackCheck, and then press ENTER.

5. Right-click DisableLoopbackCheck, and then click Modify.

6. In the Value data box, type 1, and then click OK.

7. Quit Registry Editor, and then restart your computer.


So guys, this usefull quick tip will help you to resolve the issue with content crawling access denied issue.

Cheers !!!