I am a self-taught administrator of a work Active Directory network used for Windows logins on ~30 PCs. I inherited the system from someone else who also didn't have any direct Microsoft training and as a result I am in the dark on a couple things.
The network itself has a single Windows Server 2008 R2 machine acting as domain controller, DNS, file shares, etc. Logins work fine, but I was poking around the list of users while disabling old accounts and I noticed something I don't quite understand.
Here are a couple sample user accounts:
Logon Name: john
First Name: John
Last Name: Smith
Display Name: John Smith
Canonical Name of Object: domain.com/Users/john
Logon Name: bob
First Name: Bob
Last Name: French
Display Name: Bob French
Canonical Name of Object: domain.com/Users/Bob French
The current domain controller was swapped in from another one that used to run Windows Server 2003. The first sample account was created when the Server 2003 box was DC, the second was created when the newer Server 2008 R2 box was DC. Why is the Canonical Name different, and does it make any difference?
I'm mostly annoyed by the fact that my users list in the active directory browser has half the accounts as 'firstname' and half as 'firstname lastname'.
Can I do something to make all of them the same without breaking working accounts?