No, it is not a hosted solution. Its a self hosted solution. You will have to install the Ezeelogin Jump server software on your server for better control and security.
Yes, you can move from your Free plan or your Trial plan to a paid one without reinstalling your existing installation. Also you can upgrade or downgrade your leased license seamlessly and instantly at any point of time without a reinstallation.
Yes. You can upgrade your Free license to leased license seamlessly without having to reinstall or losing your data.
Free license is available only on a monthly basis for 5 servers. That is, you need to manually renew every month. And you can purchase only one free license. Other than that, there are no limits.
Once your license goes from 5 free server to 6 servers, the cost would be for the entire 6 servers, which would be 6 servers * $2 = $12 /per-month.
Is it possible to install ezeelogin jump server on a linux host in Google or amazon AWS cloud instance?
Yes, it is possible to install Ezeelogin jump host solution server in Google Cloud, AWS, Azure, Bluemix or any other cloud.
No, you do not have to install an agent on every server. You will have to install the jump server solution on one of your Linux instance/server that you plan to use as your ssh jump server.
No, you cannot install Ezeelogin Jump server software on a Windows box. You can install only on a Linux server / instance.
Recommended OS for installing Ezeelogin Jump server software.