Enable Anonymous Access in Windows SharePoint Services V3 and SharePoint Server 2007

Usually, a person has enabled anonymous access in Central Administration, but not in the site collection. Here, I will try to reduce the process to the bare minimum required to enable anonymous access for a single document library.


1. From Central Administration > Application Management > Application Security > Authentication Providers, select a Web application and the zone you want to modify. This is usually default.

2. In the middle of the page, check Enable Anonymous Access and choose Save

3. All site collections in that Web application can now have anonymous access enabled.

4. Go to a site collection in the Web application you just enabled anonymous access for

5. From Site Actions > Site Settings, open Advanced Permissions

6. From the Settings drop-down menu, select Anonymous Access

7. For this example, enable anonymous access for Lists and Libraries and click OK

8. Browse to any document library in this site collection

9. From the Settings drop-down menu, select Document Library Settings

10. In the Permissions and Management column, select Permissions for this document library

11. From the Actions menu, select Edit Permissions to break inheritance

12. From the newly appeared Settings drop-down menu, select Anonymous Access

13. Check View Items and click OK.



Enabling anonymous access in SharePoint 2007

Even though Microsoft has done a great job on improving the user interface in SharePoint 2007, some things are still buried and require a little “black magic” to get done. In this entry I’ll show you how to enable anonymous access on your site.

First, you need to enable anonymous on the IIS web site (called a Web Application in SharePoint land). This can be done by:

  • Launching Internet Information Services Manager from the Start -> Administration Tools menu
  • Select the web site, right click and select Properties
  • Click on the Directory Security tab
  • Click on Edit in the Authentication and access control section

Instead we’ll do it SharePoint style using the Central Administration section:

  • First get to your portal. Then under “My Links” look for “Central Administration” and select it.
  • In the Central Administration site select “Application Management” either in the Quick Launch or across the top tabs
  • Select “Authentication Providers” in the “Application Security” section
  • Click on the “Default” zone (or whatever zone you want to enable anonymous access for)
  • Under “Anonymous Access” click the check box to enable it and click “Save”

NOTE: Make sure the “Web Application” in the menu at the top right is your portal/site and not the admin site.

You can confirm that anonymous access is enabled by going back into the IIS console and checking the Directory Security properties.

Now the second part is to enable anonymous access in the site.

  • Return to your sites home page and navigate to the site settings page. In MOSS, this is under Site ActionsSite SettingsModify All Site Settings. In WSS it’s under Site ActionsSite Settings.
  • Under the “Users and Permissions” section click on “Advanced permissions”
  • On the “Settings” drop down menu (on the toolbar) select “Anonymous Access”
  • Select the option you want anonymous users to have (full access or documents and lists only)

Now users without logging in will get whatever option you allowed them.

A couple of notes about anonymous access:

  • You will need to set up the 2nd part for all sites unless you have permission inheritance turned on
  • If you don’t see the “Anonymous Access” menu option in the “Settings” menu, it might not be turned on in Central Admin/IIS. You can manually navigate to “_layouts/setanon.aspx” if you want, but the options will be grayed out if it hasn’t been enabled in IIS
  • You must do both setups to enable anonymous access for users, one in IIS and the other in each site

Hope that helps!

FROM http://weblogs.asp.net/bsimser/archive/2006/09/25/Enabling-anonymous-access-in-SharePoint-2007.aspx