Specify anonymous user access settings

Use the anonymous user account on the Web server to provide anonymous access to a SharePoint site. Internet Information Services (IIS) creates and maintains the account to provide anonymous Web access on a Web server computer, not Microsoft Windows SharePoint Services. By default, IIS creates the anonymous user account, IUSR_ComputerName. When you enable anonymous access in Windows SharePoint Services, you are allowing that user account to access the Web site.

To allow anonymous access for a virtual server in Internet Information Services you must be a member of the local server's Administrators group or you must have been granted privileges to administer IIS.

Click Start, point to All Programs, point to Administrative Tools, and then click Internet Information Services (IIS) Manager.
Right-click the virtual server you want to enable anonymous access for, and then click Properties.
Click the Directory Security tab.
In the Authentication and access control section, click Edit.
The Authentication Methods dialog box appears.
Select the Anonymous access check box.
Click OK to close the Authentication Methods dialog box.
Click OK to close the Properties dialog box.

Note You may need to restart IIS for this change to take effect. After anonymous access is turned on for the virtual server in IIS, you can enable anonymous access for a specific top-level Web site.

On the site, click Site Settings.
In the Administration section, click Go to Site Administration.
On the Site Administration page, in the Users and Permissions section, click Manage anonymous access.
In the Anonymous Access section, select a level of access to allow:
- Entire Web site
- Lists and libraries
- Nothing
Click OK.