you can use the following steps to reset the password
1.)SSH into the VCN500 Server.
2.)Enter below command line :
su postgres -c "/home/postgres/bin/psql -p 6000 -d smu -c \"update tbl_smu_user_info set login_password='e687fed485a4b510722695f7d38d6b524532af5196bd70363019a52bfc0f8af3',first_login='0', salt='' where login_name='Admin';\""
3.)After reset, the default password is : Change_Me