This 2-day course gives networking professionals a functional understanding of the BIG-IP DNS system as it is commonly used. The course covers configuration and ongoing management of the BIG-IP DNS system, and includes a combination of lecture, discussion, and hands-on labs.Course Topics• Overview of the Domain Name System and DNS resolution flow through BIG-IP DNS• Configuring DNS listeners• Accelerating DNS resolution with DNS Express, DNS cache, and DNS server load balancing• Intelligent DNS resolution with wide IPs and wide IP pools• Using probes and metrics to assist the intelligent DNS resolution process• Intelligent DNS load balancing methods• Monitoring intelligent DNS resources• Logging GSLB load balancing decisions• Using DNSSEC• Integrating iRules in the DNS resolution process• Managing BIG-IP DNS sync groups
TARGET AUDIENCE:
This course is intended for system and network administrators responsible for installation, setup, configuration, and administration of BIG-IP DNS systems.
COURSE PREREQUISITES:
Students are required to complete one of the following F5 prerequisites before attending this course: ? Administering BIG-IP instructor-led course or ? F5 Certified BIG-IP Administrator The following free web-based courses, although optional, will be very helpful for any student with limited BIG-IP administration and configuration experience. These courses are available at LearnF5 (https://www.f5.com/services/training): ? Getting Started with BIG-IP web-based training ? Getting Started with BIG-IP DNS web-based training The following general network technology knowledge and experience are recommended before attending any F5 Global Training Services instructor-led course: ? OSI model encapsulation ? Routing and switching ? Ethernet and ARP ? TCP/IP concepts ? IP addressing and subnetting ? NAT and private IP addressing ? Default gateway ? Network firewalls ? LAN vs. WAN The following course-specific knowledge and experience is suggested before attending this course: ? DNS resolution process ? Experience configuring DNS content and resolution servers ? DNSSEC
COURSE CONTENT:
Chapter 1: Setting Up the BIG-IP System• Introducing the BIG-IP System• Initially Setting Up the BIG-IP System• Archiving the BIG-IP Configuration• Leveraging F5 Support Resources and ToolsChapter 2: Introducing the Domain Name System (DNS) and BIG-IP DNS• Understanding the Domain Name System (DNS)• Reviewing the Name Resolution Process• Implementing BIG-IP DNS• Using DNS Resolution Diagnostic ToolsChapter 3: Accelerating DNS Resolution• Introducing DNS Resolution with BIG-IP DNS• BIG-IP DNS Resolution Decision Flow• Configuring BIG-IP DNS Listeners• Resolving DNS Queries in the Labs (Lab Zone Records)• Load Balancing Queries to a DNS Server Pool• Accelerating DNS Resolution with DNS Cache• Accelerating DNS Resolution with DNS Express• Introducing Wide IPs• Using Other Resolution Methods with BIG-IP DNS• Integrating BIG-IP DNS into Existing DNS EnvironmentsChapter 4: Implementing Intelligent DNS Resolutions• Introducing Intelligent DNS Resolution• Identifying Physical Network Components• Identifying Logical Network Components• Collecting Metrics for Intelligent Resolution• Configuring Data Centers• Configuring a BIG-IP DNS System as a Server• Configuring a BIG-IP LTM System as a Server• Establishing iQuery Communication between BIG-IP Systems• Configuring a Non-F5 Server• Defining Links and Routers• Configuring Wide IP Pools• Configuring Wide IPs• Managing Object Status and State• Using the Traffic Management Shell (TMSH)Chapter 5: Using LDNS Probes and Metrics• Introducing LDNS Probes and Metrics• Types of LDNS Probes• Excluding an LDNS from Probing• Configuring Probe Metrics CollectionChapter 6: Load Balancing Intelligent DNS Resolution• Introducing Load Balancing on BIG-IP DNS• Using Static Load Balancing Methodso Round Robino Ratioo Global Availabilityo Static Persisto Other Static Load Balancing Methods• Using Dynamic Load Balancing Methodso Round Trip Timeo Completion Rateo CPUo Hopso Least Connectionso Packet Rateo Kilobytes per Secondo Other Dynamic Load Balancing Methods• Using Quality of Service Load Balancing• Persisting DNS Query Responses• Configuring GSLB Load Balancing Decision Logs• Using Manual Resume• Using Topology Load BalancingChapter 7: Monitoring Intelligent DNS Resources• Exploring Monitors• Configuring Monitors• Assigning Monitors to Resources• Monitoring Best PracticesChapter 8: Advanced BIG-IP DNS Topics• Implementing DNSSEC• Setting Limits for Resource Availability• Using iRules with Wide IPs• Introducing Other Wide IP Types• Implementing BIG-IP DNS Sync GroupsCourse Changes since v15The Configuring DNS v16.1 course presents much of the same content as v15.1, with very minor modifications.
COURSE OBJECTIVE:
Upon successful completion of this course, the student will be able to: • Provision the BIG-IP system for operation• Back up the BIG-IP system configuration for safekeeping• Describe how the Domain Name System (DNS) resolves host names into IP addresses• Describe how the BIG-IP DNS system can participate in the DNS resolution process DNS resolution with wide IPs and wide IP pools• Describe how the BIG-IP DNS system can participate in the DNS resolution process• Cache DNS query responses on BIG-IP DNS to accelerate DNS resolution• Load balance DNS queries to a pool of DNS servers and monitor pool health• Configure the key features of the BIG-IP DNS system to perform intelligent DNS resolution• Describe the LDNS probes used by BIG-IP DNS to support path-based load balancing• Configure a wide IP pool to use a path load balancing method• View and confirm DNS resolution behavior using path load balancing methods• Use static and dynamic load balancing methods to intelligently resolve DNS queries• Use persistence to effectively return one or more clients to the same virtual server on each query• Use manual resume to control certain load balancing behavior in the event of an outage• Configure and use load balancing decision logs to fine-tune and troubleshoot DNS resolution• Configure monitors on the BIG-IP DNS system in support of DNS resolution• Configure BIG-IP DNS to participate in the DNSSEC chain of trust• Configure limit settings on virtual servers, servers, and wide IP pools to temporarily direct client traffic away from resources that may not be performing at certain thresholds of efficiency• Configure iRules on a wide IP to customize intelligent DNS resolution• Describe the other wide IP types provided with BIG-IP DNS• Configure a BIG-IP DNS sync group• Apply all the principles learned throughout the course to configure a BIG-IP DNS system based on hypothetical specifications
FOLLOW ON COURSES:
Configuring BIG-IP LTM: Local Traffic Manager v.16.1Configuring F5 Advanced WAF (previously licensed as ASM) v16.1Configuring BIG-IP APM: Access Policy Manager v.16.1