sn is an attribute in the AD schema used to store the last name of the user.
I did a quick search in Google and found this info that could help you: http://www.computerperformance.co.uk/Logon/LDAP_attributes_active_directory.htm -- - Website: https://apereo.github.io/cas - Gitter Chatroom: https://gitter.im/apereo/cas - List Guidelines: https://goo.gl/1VRrw7 - Contributions: https://goo.gl/mh7qDG --- You received this message because you are subscribed to the Google Groups "CAS Community" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/a/apereo.org/d/msgid/cas-user/5e6694eb-47e6-4c11-a823-742449ba0720%40apereo.org.
