How to list App & DB Servers

I’m on the jump host, How to list or connect to these App & DB Servers

You have to connect via ssh servername -l username

Here are the project details, server details and credentials https://kodekloudhub.github.io/kodekloud-engineer/docs/projects/nautilus

and how to connect to the db server ?

Hello,

You can SSH into any server from jump host using the correct credentials and hostname/IPs as per given in the document shared above ^^.

Thanks
Inderpreet