Solution #00004338
Scope:
This solution applies to Yosemite Server Backup 8.1 and newer
Answer:
On a new install of Yosemite Backup and Yosemite Server Backup, there is no default admin password. To log in, leave the password field empty and click Ok. This will log you in unless the password has been previously changed.
Link to this page:
https://campus.barracuda.com/solution/50160000000HqZSAA0