Log in to the DD via the CLI as sysadmin, and enter SE privilege mode. The system password is the Data Domain serial number.
# system show serialno
# priv set se
# Enter system password:
Disable http and https services on the Data Domain to bring down the GUI process:
# adminaccess disable http
# adminaccess disable https
Enable http and https services on the Data Domain to re start the GUI process:
# adminaccess enable http
# adminaccess enable https
Wait for a couple of minutes to allow services to fully initialize
