
Explore the Big-IP DNS (GTM) solution, covering DNS concepts, global server load balancing, DNS security against DDoS, and deployment options—cloud, hardware, and virtual editions—with hands-on labs.
Explore the DNS overview, zones, and the resolution process. Identify how DNS servers (non-authoritative, authoritative, recursive, and caching) operate in practice.
Learn to use nslookup and dig to query DNS, resolve A, MX, NS, CNAME, SOA records, and interpret TTLs and authoritative versus non-authoritative responses across Windows and Linux.
Configure a BIG-IP GTM as a recursive dns server, including monitor, pool, cache, log publishing, and a dns listener, then test with dig/nslookup and analyze logs.
Configure DNS zones with Zone Runner on GTM using DNS Express, create master zones, manage resource records and views, and verify with dig to ensure authoritative zone transfers.
Unpack global server load balancing with big IP GTM, routing DNS requests via round robin and static or dynamic methods across LTMs and web servers.
Configure GTM to implement GSLB with two LTM servers by creating data centers, servers, and a pool, then define a wide IP and DNS listener.
Configure wide ips with a listener by creating two pools sample pool and example pool and mapping sample domain.com and example domain.com to the listener, validating with nslookup and curl.
Learn how to configure DNSSEC in GTM using ZSK and KSK, create and assign zone signing and key signing keys, enable automatic key rollover, and verify DNSSEC with multi-line queries.
Finish the big-ip dns course with hands-on labs using three big-ip virtual machines, covering basics to advanced concepts, and invite further questions or upcoming modules.
The 302 – BIG-IP DNS Specialist (formerly the 302 – GTM Specialist) exam identifies individuals who can deliver scalable intelligent DNS/Global Server Load Balancing (GSLB) infrastructure across multiple data centers. They will likely be a BIG-IP DNS administrator with at least one year of experience. The BIG-IP DNS Specialist understands basic to advanced operations of DNS protocol, deploys and test configurations,troubleshoots, and remediates common misconfigurations.
Candidates that pass Exam 302 will receive the F5 Certified! Technology Specialist, BIG-IP DNS certification. People with this certification have the fundamental knowledge necessary to application delivery architects and application delivery engineers working with BIG-IP DNS, including the ability to understand the basic operation of the DNS protocol, deploy and test configurations, and troubleshoot and remedy common misconfigurations. These individuals also are able to explain the capabilities of DNS services to deploy applications globally.
Identify customer requirements, constraints, and challenges related to DNS Recognize the functionality and limitations of the DNS protocol (e.g., hierarchy, roles) Determine relevant information to gather regarding a customer's need for high availability,security, and management. Evaluate existing DNS environment for BIG-IP DNS solutions. Ascertain specific scope and scale of DNS requirements.Recognize limitations imposed by the existing DNS service provider Identify change control procedure related the integration of BIG-IP DNS into an existing environment.