An error occurred while configuring Moss crawling: access is denied. Verify that the default content access account has permissions

Web crawling was used recently when SharePoint 2010 was used. the actual environment is as follows: a server, an IIS with different host headers, is managed by a management center, but on the server of the management center, only the first website with the same name as IIS can be accessed. Other websites cannot. after network crawling is configured, the Administrator account is used, but an error occurs. in the crawling log, the access is denied. Verify that the default content access account has the right to access this database. It is normal for other machines to access different host headers. Later I heard that the same problem was also found on 2007. Therefore, to perform a search, we can modify the registry. As follows:

Resolution:
Follow these steps to disable the loopback check which is causing the error:

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.