Configuring System Settings : About announcements
  
About announcements
Announcement settings are located under Administration > System Settings: Announcements. You can enter a login message and a message of the day. The login message appears in the SCC login page. The message of the day appears on the Dashboard and when you first log in to the CLI.
You can also set the local (that is, the serial interface) and remote login message using the banner CLI. For example:
banner login-local “reminder: meeting today”
banner login-remote “reminder: meeting today”