Namensauflösungsregeln

Namensauflösungsregeln, also known as name resolution rules, are a set of principles or algorithms used to determine the identity or meaning of a name. In computing, this most commonly refers to how a system translates a human-readable name, such as a domain name (e.g., www.example.com), into a machine-readable identifier, typically an IP address (e.g., 192.0.2.1). This process is fundamental to the functioning of the internet and many other networked systems.

The most prevalent example is the Domain Name System (DNS). When a user types a web address into their browser, their computer queries a DNS resolver. The resolver then follows a hierarchical set of rules to locate the authoritative name server for that domain. This involves checking various levels of DNS records, such as root servers, top-level domain (TLD) servers, and authoritative name servers specific to the domain itself. Each step in this resolution process is governed by specific rules to ensure accuracy and efficiency.

Beyond DNS, name resolution rules can apply in other contexts. For instance, in programming languages, scope rules dictate how a compiler or interpreter resolves the meaning of variable names or function calls, determining which declaration a particular use refers to. Operating systems also employ name resolution for files, devices, and processes, mapping symbolic names to their underlying system resources. The core idea remains consistent: to connect an abstract name to a concrete entity or value within a given system.