adminUsername

Specifies the name of the administrator account.

Windows-only restriction: Cannot end in "."

Disallowed values: "administrator", "admin", "user", "user1", "test", "user2", "test1", "user3", "admin1", "1", "123", "a", "actuser", "adm", "admin2", "aspnet", "backup", "console", "david", "guest", "john", "owner", "root", "server", "sql", "support", "support_388945a0", "sys", "test2", "test3", "user4", "user5".

Minimum-length (Linux): 1 character

Max-length (Linux): 64 characters

Max-length (Windows): 20 characters