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#0
Learning DNS - Pre-Requisite Skills & Environment Setup
Before touching PowerDNS, you need to master basic networking, Linux operations, and command line habits like dig and nslookup. This episode also guides you through setting up a VM or Docker lab, adding the official PowerDNS repositories, installing pdns, pdns-recursor, and dnsdist, and then verifying your first connection to the server.
August 10, 2026
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#1
Learning DNS - History, Background & Why DNS Is Needed
This episode traces the evolution of name resolution from the HOSTS.TXT file of the ARPANET era to the birth of DNS through RFC 882/883, the development of protocols like EDNS0, DNSSEC, and encrypted DNS, and the history of PowerDNS from 1999 to the trio of Authoritative, Recursor, and dnsdist.
August 10, 2026
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#2
Learning DNS - Core Concepts & Main Architecture
This episode dissects the foundations of DNS: the hierarchical namespace from the root zone to subdomains, the anatomy of a DNS message along with its header and flags, the roles of authoritative versus recursor, the flow of iterative and recursive resolution, and the catalog of the most commonly used resource records.
August 10, 2026
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#3
Learning DNS - Installation & Initial Setup
This episode covers installing the PowerDNS trio and the initial configuration structure for each: pdns.conf for Authoritative, recursor.yml for Recursor, and dnsdist.yml for dnsdist, plus systemd service management and verification with dig @127.0.0.1.
August 10, 2026
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#4
Learning DNS - Zones & Resource Record Types
This episode dissects the concept of zone versus domain, the full SOA format with serial and timing parameters, resource record types from A to SVCB/HTTPS, and the difference between BIND-style zone files and database storage in PowerDNS.
August 10, 2026
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#5
Learning DNS - PowerDNS Authoritative Server Basics
This episode covers the PowerDNS Authoritative Server: choosing a backend between bind, gsqlite3, gmysql, and lmdb, then hands-on practice creating zones, adding records, inspecting zones, and editing with pdnsutil, plus verification with dig.
August 10, 2026
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#6
Learning DNS - PowerDNS Recursor Basics
This episode covers the PowerDNS Recursor: configuring recursor.yml for listen addresses, local zones, and forward zones, caching mechanisms from packet cache and record cache to negative caching and TTL settings, plus verifying resolution.
August 10, 2026
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#7
Learning DNS - dnsdist Basics
This episode covers dnsdist as a DNS load balancer: the concepts of frontend listeners and backend pools, initial configuration with newServer, the leastOutstanding and roundrobin load balancing policies, ACL settings, and the web dashboard for monitoring.
August 10, 2026
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#8
Learning DNS - Basic Diagnostic & Troubleshooting Tools
This episode covers your DNS diagnostic toolkit: using dig +trace, +short, +dnssec, and +nssearch, comparing drill and kdig, validating zones with pdnsutil check-zone, reading logs via pdns_control and journalctl, and using tcpdump on port 53.
August 10, 2026
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#9
Learning DNS - Primary & Secondary Servers (Master-Slave)
This episode covers the primary and secondary DNS server concepts: SOA serial as a zone version marker, the NOTIFY flow through AXFR and IXFR, and their implementation in PowerDNS with primary=yes, allow-axfr-ips, also-notify, and creating secondary zones.
August 10, 2026
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