In the main menu choose Pods and click on the name of the pod to locate a container in.
On the pod page in the list of containers in SSH (link/pass) column - the link and the key icons lead to copy SSH link and password to clipboard accordingly. Use this link to connect to your containers via SSH or SFTP connection.
To regenerate password click Reset SSH access at the top of the page. This action will reset password for each container in the pod but will not change the link.
Sometimes, IP addresses used to compose SSH links to containers may be changed due to reasons beyond KuberDock control.
In such cases, KuberDock automatically regenerates the links which may require the pod page refresh to renew them in the container list.
Please read carefully known problems with OpenSSH here.