[root@localhost ~]# service httpd restart
Stopping httpd:                                            [  OK  ]
Starting httpd:                                            [  OK  ]
[root@localhost ~]#

Next, I tried the Olin login portal again. I now get a different message in the top left corner:
"Not a UNIX account, trying standard account". For my username & passwrd, I'm using the contents of the file:
 // NIDB login.php
 // Copyright (C) 2004 - 2012
 // Gregory A Book
 // Olin Neuropsychiatry Research Center, Hartford Hospital

Login to Olin Systems
Incorrect login. Make sure Caps Lock is not on
Username Your Linux username
Password Case sensitive
Leave me logged in (for 90 days)