There is a special procedure. ( debian )
SSH is disabled by default. If you download a VM from bitnami
sudo rm -f /etc/ssh/sshd_not_to_be_run sudo systemctl enable ssh sudo systemctl start ssh
So, to enable password.
edit /etc/ssh/sshd_config
Uncomment the password field
# To disable tunneled clear text passwords, change to no here! PasswordAuthentication yes #PermitEmptyPasswords no
To add a new user to sudo group.
sudo adduser -a -G sudo <username> sudo adduser -a -G bitnami <username>