Episode 59 — Name Resolution — DNS, Hosts Files, and FQDN Use
This episode covers how servers resolve hostnames to IP addresses using Domain Name System (DNS) servers, local hosts files, and fully qualified domain names (FQDNs). We explain how DNS zones, records, and caching work, as well as the importance of configuring correct DNS server addresses on each server. Hosts files are discussed as a manual override for name resolution, useful in isolated or troubleshooting scenarios.
We then explore real-world and exam scenarios where name resolution is critical, such as joining a server to a domain or accessing network resources via FQDN. Troubleshooting examples include identifying misconfigured DNS servers, clearing caches, and correcting hosts file entries. Mastery of name resolution ensures candidates can configure, verify, and repair hostname lookups efficiently. Produced by BareMetalCyber.com, where you’ll find more cyber prepcasts, books, and information to strengthen your certification path.
