Process

1. Open Keychain Access using Spotlight.
   
2. In the left pane, select the System keychain and the Certificates Category. In the right pane, find and double-click the radius.rit.edu certificate.
   
3. Expand the Trust section.
   
4. In the drop-down for When using this certificate: select Always Trust
   
5. Close the window and enter your credentials to finish the process. You can now quit Keychain Access.