What is Hidden User Information (Userinfo) List in SharePoint 2010/2013 and how to fix when it causes a site collection to show old User metadata properties in People Picker control or in a Person or Group column?

What is the User Information List in SharePoint?   The User Information List (“/_catalogs/users/simple.aspx” or “_catalogs/users/detail.aspx”) is a hidden list in each site collection that is only visible and accessible to Site Collection Administrators.  The User Information List stores metadata information about a user. Some metadata examples are Display Name (name), Login Name (samAccountName), Department, Picture,…

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How Does Renaming an Active Directory Group Impact User Access, People Picker, and Audience Targeting in SharePoint 2010?

I've done some research and testing to determine how rename of a Group in Active Directory impacts SharePoint 2010, and my best understanding provided below.  I believe much of this would be applicable for SharePoint 2013, too. About Active Directory (AD) Groups Groups are used to collect user accounts, computer accounts, and other groups into…

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Monitoring SharePoint Distributed Cache Service for Scale-Up (memory) or Scale-Out (add cache host)

What are recommended procedures for monitoring the Distributed Cache Service on SharePoint 2013 for scale-up (memory) or scale-out (add cache host) to handle increasing load?  I’ve done some initial research, and learned this isn’t an exact science.  I’ve provided some initial information I collected in this post. The Distributed Cache Service provides in-memory caching services to…

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Reconciling SharePoint 2013 Content Database Size to Total Size of Site Collections

Have you ever looked at the total physical size of content database (DB) files in SQL Server and wondered why it doesn't reconcile with the total size of site collections contained in the database?  What you'll probably observe is the total size of all site collections in a content DB will be considerably less that the database size property you see…

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Supported Way to Configure Additional URL for a Web Application in SharePoint Server

Example Scenario:  You want to add another user-friendly URL (http://inside.contoso.com) to an existing SharePoint 2010 or 2013 web application in addition to the default URL (http://servername:5555). Then users can access the web application using either the default or user-friendly URL. To be in a Microsoft supported state, every alternate access mapping URL in SharePoint must have a…

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Best Practices for Authorizing User Access to SharePoint Sites Using SharePoint Groups/Permissions/Inheritance

The Office support topic “Introduction: Control user access with permissions” explains three SharePoint security features that work together to help you control user access to sites and content on sites. These features are: SharePoint groups Permission levels Permissions inheritance and site structure Using these three features, what are best practices for SharePoint security design and…

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