F5 Configuring BIG-IP DNS

Course Description

Learn how to configure and deploy BIG-IP DNS as it is commonly used. Learn how the Domain Name System (DNS) resolves hostnames into IP addresses, and how to use DNS Express to cache DNS query responses, accelerating DNS resolution. Practice working with key features to perform intelligent DNS resolution and configure wide IP pools to use a path load balancing method.

Explore using persistence to effectively return one or more clients to the same virtual server on each query. Practice manual controls for resuming certain load balancing behaviors in the event of an outage. Configure BIG-IP DNS to participate in the DNSSEC chain of trust. Configure limit settings on virtual servers, and wide IP pools to temporarily direct client traffic away from resources that may not be performing at certain thresholds of efficiency. Customize intelligent DNS resolution using iRules on a wide IP. Learn how to configure a BIG-IP DNS sync group.

Reinforce knowledge transfer through the use of hands-on labs, and gain the confidence needed to start using BIG-IP DNS in a production environment.

Course Objectives

• 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.

• Use DNS Express on the BIG-IP DNS system to accelerate DNS resolution.

• 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 specification.

Target Audience

This course is intended for system and network administrators responsible for installation, setup, configuration, and administration of BIG-IP DNS systems.

Prerequisites

Optional (but helpful for students with limited BIG-IP experience):

• Getting Started with BIG-IP

• Getting Started with BIG-IP DNS

Recommended General Network Knowledge:

• General network technology knowledge and experience are recommended before attending any F5 Global Training Services instructor-led course, including 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, and LAN vs. WAN.

Suggested Course-Specific Knowledge:

• DNS resolution process

• Experience configuring DNS content and resolution servers

• DNSSEC

Examination

• Certification Title: F5 Certified Technology Specialist, BIG-IP DNS (F5-CTS, BIG-IP DNS)

• Exam Required: BIG-IP DNS Specialist (302)

• Exam Duration: 90 minutes

• Exam Passing Score: 245/350