F5 Networks Developing iRules for BIG-IP

Duration

3 Days

18 CPD hours

About this course

This course is intended for system administrators, network administrators and application developers responsible for the customization of traffic flow through a BIG-IP system.

Description

This course provides networking professionals a functional understanding of iRules development. The course builds on the foundation of the Administering BIG-IP or Configuring LTM course, demonstrating how to logically plan and write iRules to help monitor and manage common tasks involved with processing traffic on the BIG-IP system. Extensive course labs consist of writing, applying and evaluating the effect of iRules on local traffic. This hands-on course includes lectures, labs, and discussions.

Module 1: Setting Up the BIG-IP System

Introducing the BIG-IP System
Initially Setting Up the BIG-IP System
Archiving the BIG-IP System Configuration
Leveraging F5 Support Resources and Tools

Module 2: Getting Started with iRules

Customizing Application Delivery with iRules
Triggering an iRule
Leveraging the DevCentral Ecosystem
Creating and Deploying iRules

Module 3: Exploring iRule Elements

Introducing iRule Constructs
Understanding iRule Events and Event Context
Working with iRule Commands
Logging from an iRule Using SYSLOG-NG (LOG Command)
Working with User-Defined Variables
Working with Operators and Data Types
Working with Conditional Control Structures (IF and SWITCH)
Incorporating Best Practices in iRules

Module 4: Developing and Troubleshooting iRules

Mastering Whitespace and Special Symbols
Grouping Strings
Developing and Troubleshooting Tips
Using Fiddler to Test and Troubleshoot iRules

Module 5: Optimizing iRule Execution

Understanding the Need for Efficiency
Measure iRule Runtime Efficiency Using Timing Statistics
Modularizing iRules for Administrative Efficiency
Using Procedures to Modularize Code
Optimizing Logging
Using High-Speed Logging Commands in an iRule
Implementing Other Efficiencies
Using Looping Control Structures (WHILE, FOR, FOREACH Commands)

Module 6: Securing Web Applications with iRules

Integrating iRules into Web Application Defense
Mitigating HTTP Version Attacks
Mitigating Path Traversal Attacks
Using iRules to Defends Against Cross-Site Request Forgery (CSRF)
Mitigating HTTP Method Vulnerabilities
Securing HTTP Cookies with iRules
Adding HTTP Security Headers
Removing Undesirable HTTP Headers

Module 7: Working with Numbers and Strings

Understanding Number Forms and Notation
Working with Strings (STRING and SCAN Commands)
Combining Strings (Adjacent Variables, CONCAT and APPEND Commands)
Using iRule String Parsing Functions (FINDSTR, GETFIELD, and SUBSTR Commands)

Module 8: Processing the HTTP Payload

Reviewing HTTP Headers and Commands
Accessing and Manipulating HTTP Headers (HTTP::header Commands)
Other HTTP commands (HTTP::host, HTTP::status, HTTP::is_keepalive, HTTP::method, HTTP::version, HTTP::redirect, HTTP::respond, HTTP::uri)
Parsing the HTTP URI (URI::path, URI::basename, URI::query)
Parsing Cookies with HTTP::cookie
Selectively Compressing HTTP Data (COMPRESS Command)

Module 9: Working with iFiles and Data Groups

Working with iFiles
Introducing Data Groups
Working with Old Format Data Groups (MATCHCLASS, FINDCLASS)
Working with New Format Data Groups (CLASS MATCH, CLASS SEARCH)

Module 10: Using iRules with Universal Persistence, Stream, and Statistics Profiles

Implementing Universal Persistence (PERSIST UIE Command)
Working with the Stream Profile (STREAM Command)
Collecting Statistics Using a Statistics Profile (STATS Command)
Collecting Statistics Using iStats (ISTATS Command)

Module 11: Incorporating Advanced Variables

Reviewing the Local Variable Namespace
Working with Arrays (ARRAY Command)
Using Static and Global Variables
Using the Session Table (TABLE Command)
Processing Session Table Subtables
Counting Things Using the Session Table

Additional course details:

Nexus Humans F5 Networks Developing iRules for BIG-IP training program is a workshop that presents an invigorating mix of sessions, lessons, and masterclasses meticulously crafted to propel your learning expedition forward.

This immersive bootcamp-style experience boasts interactive lectures, hands-on labs, and collaborative hackathons, all strategically designed to fortify fundamental concepts.

Guided by seasoned coaches, each session offers priceless insights and practical skills crucial for honing your expertise. Whether you're stepping into the realm of professional skills or a seasoned professional, this comprehensive course ensures you're equipped with the knowledge and prowess necessary for success.

While we feel this is the best course for the F5 Networks Developing iRules for BIG-IP course and one of our Top 10 we encourage you to read the course outline to make sure it is the right content for you.

Additionally, private sessions, closed classes or dedicated events are available both live online and at our training centres in Dublin and London, as well as at your offices anywhere in the UK, Ireland or across EMEA.

Training Insurance Included!

When you organise training, we understand that there is a risk that some people may fall ill, become unavailable. To mitigate the risk we include training insurance for each delegate enrolled on our public schedule, they are welcome to sit on the same Public class within 6 months at no charge, if the case arises.

What people say about us

Booking process was very easy. Once initial contact was made everything happened smoothly.

Pfizer

Great course yesterday and can’t give enough amazing feedback for John. I’ve never had a teacher hold attention of a class from start to finish, but yesterday he did this.

Jennifer O'Connor

Vistra

Alan delivered the training in an easy to understand and pleasant manner which was broken down into manageable chunks with an appropriate number of breaks to give folk time away from their laptops and screens. It is never easy to do 2 days of training on a fairly in-depth subject involving Software even in a classroom environment and remaining focused and engaged so doing it remotely adds another level of complexity, but I have to say that personally this was one of the best Training Events that I have attended for some years. I have gained so much knowledge of MS Project and it will certainly make my job easier going forward.

A large part of what I gained has to be credited to Alan’s manner and delivery and I should be grateful if you could pass on my thanks to him.

Also, the support, together with joining instructions & training literature etc from Nexus Human has been excellent – thank you for that. I intend feeding that back to our People and ICT Teams too

Nexus Human - Project class

December 2023

This was my 2nd course with Nexus Human and I enjoy the format of the courses.
This was very well-run, the instructor was superb and i will get a lot of benefit from having access for the next 6 months, I look forward to the next course.

Cathal

Kerry, Ireland

I would like to thank the staff of Nexus Human, who were very helpful, prompt, friendly and professional in helping me attain my Microsoft certification. I would like to thank Abdul in particular for his guidance during the course and commend him on his knowledge of software development.

Paul

ITC Group
Dublin

This is the 3rd course I have done with Arun. He is very helpful and always supportive if I have other questions outside the lecture parameters. I have already recommended him and Nexus Human to work colleges and would do so again after this course.

Philip

Nexus Human Classroom Student

The instructor was excellent. Was willing to field any questions we had and deal with our specific queries.

Excel student

The class just finished and I just wanted to mention to you that it was absolutely amazing. The quality of the training had very high standards, the trainer explained amazingly well and we actually practiced (did) all the steps. It was not learning by watching a presentation but by actually doing. The training has been delivered from Atlanta (US) and I cannot wait to go tomorrow in the office and recommend it. The connection and the lab environment were running perfectly.
Once again thank you very much and looking forward for the next trainings scheduled. Enrolling via Nexus Human was the perfect choice.

Cristina, Nexus Human IT Course Attendee

Firstly I would like to say thanks, I found the course I sat yesterday extremely beneficial and the instructor was fantastic, she was enthusiastic and engaging and I would highly recommend the course to friends and colleagues. The post class services are also excellent!

Adobe Student

Sharon was lovely and has a fantastic knowledge. Honestly I didn't think I needed part 1 but I am SO glad I came. Thank you. Will be back in for part 2.

Nexus Human Student

Excellent interaction and answered all of my questions. Looking forward to being able to apply some of the tips and features learned today which hopefully should have real impact on some of the more time consuming tasks currently encountered.

Nexus Human Power BI Attendee

Brilliant
Wonderful teacher
Course presented extremely well indeed

Nexus Human Student feedback

Find out more about this course

Interested in alternative dates? Would like to book a private session of this course for your company? Or for any other queries please simply fill out the form below.

Skill Up Card - Course Bundles