People Picker in SharePoint 2013

We can manage how to query users in People picker using stsadm as the following (You can run these commands in SharePoint Management Shell ) :

1. To enable Cross Domain (One way )
   stsadm -o setproprety -pn peoplepicker-searchadforests -pv "foreset:domain.com,domain\abc,password;domain:domain2.com,domain2\abc,password" -url http://domain.com
2. Only show certain users or groups
   stsadm -o setsiteuseraccountdirectorypath -path "OU=Users,DC=Domain,DC=Com" -url http://domain.com
3. Only show Users in Site collection
   stsadm -o setproperty -pn peoplepicker-onlysearchwithinsitecollection -pv yes -url http://domain
4. Only show enabled accounts (using filter)
   stsadm -o setproperty -pn peoplepicker-searchadcustomfilter -pv "(*(objectCategory=person)(objectClass=user)(!userAccountControl:1.2.840.113556.1.4.803:=2))" -url http://domain
5. Only show Non AD accounts
   stsadm -o setproperty -pn peoplepicker-nowindowsaccountsfornonwindowsauthenticationmode -pv yes -url http://domain

• for more details 
• http://technet.microsoft.com/en-us/library/gg602075.aspx
• http://blogs.msdn.com/b/spses/archive/2012/07/18/all-you-want-to-know-about-people-picker-in-sharepoint-functionality-configuration-troubleshooting-part-2.aspx