How to find your server name

Everything about the hostname

The host name is a freely selectable designation for a computer. For example, you could name a server in a company network that is responsible for the central administration of e-mails “mail” or “mail123”.

If, on the other hand, a computer is to be available not only locally but also via the Internet, the host name must be supplemented by information that indicates which part of the Internet the computer is in. Computers can be used on the Internet using a combination of Host name and domain clearly assign. These uniquely identifiable name chains are called “Fully Qualified Domain Name” (FQDN), in German “fully specified computer name”. An example of an FQDN would be:

mail123.example.com.

If you read the terms of the hierarchy from right to left, you can see the components of the FQDN in the following order: Root label (empty), Top-level domain (.com), Second level domain (example) and Hostname (mail123).

An FQDN is a human-readable form of addressing. In contrast to humans, computers work with numeric IP addresses to uniquely identify computers on the Internet. As part of a website call, an intermediate step is therefore necessary in which the alphanumeric domain is translated into a numeric IP address.

The Domain Name System (DNS) is responsible for this name resolution. The domain entered is assigned to the corresponding IP address and the page you are looking for is then called up. This system ensures that human users do not have to enter the IP address every time they visit a website, but can use a name that is easier to remember.