Network infrastructure

The following figure illustrates a rough overview of the network structure of a public-cloud instance. Usually, the client is hidden behind a firewall and proxy, which can be established by a company or at home within the private network. All cloud instances have two IP addresses: a private one, which is only visible in the cloud network itself and a public IP, which is visible on the Internet. The latter is normally not published in the runtime environment of the cloud instance itself, which is commonly called Network Address Translation (NAT). Moreover, the public IP address is not fixed, it changes every time the instance is started or rebooted.

Cloud infrastructur

The changing public IP address of the cloud instance may cause trouble during the configuration of software applications. There are two way of avoiding this: