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Unbreaking the Internet and Converting Protocols

When CloudFlare took over 1.1.1.1 for their DNS service; this got be thinking about a couple of issues:What do you do if you’ve been using 1.1.1.1 on your network, how do you unbreak the Internet?How can you enable use of DNS over TLS for clients... Read more
2 Reviews

F5 Editor Eclipse Plugin v2

We are pleased to announce availability of our updated F5 Programmability Editor for Eclipse IDE v2. The F5 Programmability Development Environment for Eclipse allows you to use the Eclipse IDE to manage iRules, iRules LX, iControl LX, and iApps... Read more
2 Reviews

Creating a Secure AWS S3 Proxy with F5 iRulesLX

The article provides a solution of creating a secure proxy to AWS S3 using the AWS SDK and F5 iRulesLX Read more
2 Reviews

APM Cookbook: Two-Factor Authentication using YubiKey OTP with iRulesLX.

It’s been a number of years since I penned my first DC article: Two-Factor Authentication using YubiKey, YubiCloud and APM. A lot has changed over the years, BIG-IP versions and features, new YubiKey models and the YubiCloud Validation... Read more
Average Rating: 4.9
6 Reviews
Average Rating: 4.9
3 Reviews

AWS Auto Scale Group to F5 BIG-IP via a webhook

Traditionally a Networking Engineer/Operator makes configuration changes on a BIG-IP. In a cloud environment, like Amazon Web Services (AWS), we expect that the infrastructure will propagate the changes without the need for manua... Read more
Average Rating: 4.9
4 Reviews

APM Cookbook: Modify LDAP Attribute Values using iRulesLX

Introduction Access Policy Manager (APM) does not have the ability to modify LDAP attribute values using the native features of the product. In the past I’ve used some creative unsupported solutions to modify LDAP attribute values, but with the... Read more
Average Rating: 4.3
5 Reviews

Where you Rate-Limit APIs Matters

Seriously, let’s talk about this because architecture is a pretty important piece of the scalability puzzle.   Rate limiting is not a new concept. We used to call it “quality of service” to make it sound nicer, but the reality is that when... Read more
1 Review

Radius Proxy with Google Authenticator

During Programmability Month, we released a Getting Started with iRules LX series of introductory articles, covering concepts, workflows, troubleshooting techniques, and best practices. This last week, one our community members, Artiom, took to... Read more
2 Reviews

F5 Programmability for Eclipse - Installation Instructions

It’s been a long time coming, but I’m pleased to announce a brand new editor for your iRules: F5 Programmability for Eclipse! This editor supports iRules & iRules LX in its initial release, but stay tuned for more features down the road. One... Read more
Average Rating: 4.9
3 Reviews

Serverless … Security?

In case you haven’t heard, the new hotness in app architectures is serverless. Mainly restricted to cloud environments (Amazon Lambda, Google Cloud Functions, Microsoft Azure Functions) the general concept is that you don’t have to worry about... Read more
0 Reviews

June is Programmability Month!

We’ve expanded over the years to include systems, configuration, advanced modules, security, etc, but programmability has historically been the bread and butter of what we do. Given the success we had with February’s security month, this... Read more
2 Reviews

Getting Started with iRules LX, Part 5: Troubleshooting

When you start writing code, you will eventually run into some issue and need to troubleshoot. We have a few tools available for you. Logging One of the most common tools use for troubleshooting is logging. STDOUT and STDERR for the Node.js... Read more
2 Reviews

Getting Started with iRules LX, Part 4: NPM & Best Practices

Sooner or later you will find yourself wanting to install packages from NPM to help you fulfill a use case. NPM on BIG-IP works much of the same way you use it on a server. We recommend that you not install modules... Read more
1 Review

Getting Started with iRules LX, Part 3: Coding & Exception Handling

In this article, we will cover the coding of iRules LX. TCL Commands As mentioned in the first article, we still need iRules TCL to make a RPC to Node.js. iRules LX introduces 3 new iRules TCL commands - ILX::init - Creates a RPC handle to... Read more
2 Reviews

Lightboard Lessons: iRules LX Architecture

In this episode of Lightboard Lessons, Jason covers the underlying architecture of F5’s new iRules LX feature released in BIG-IP TMOS 12.1. For more details, check out our Getting Started with iRules LX article series! Read more
2 Reviews

The Double Whammy of Scripting

Many of you are very familiar with iRules, our Tool Command Language (Tcl) based scripter. It’s a powerful application delivery tool to have a programmable proxy that allows you to manipulate – in real time - any network traffic passing through... Read more
0 Reviews

Getting Started with iRules LX, Part 2: Configuration & Workflow

In the previous article in this series we covered the reasons for iRules LX and the conceptual operation. Now we need learn the new configurations items that iRules LX introduces. Since iRules LX has DevOps teams in mind, there is a slightly different workflow than... Read more
Average Rating: 4.9
5 Reviews

Getting Started with iRules LX, Part 1: Introduction & Conceptual Overview

What is iRules LX? The release of BIG-IP TMOS 12.1.0 brought a new feature called iRules LX. iRules LX is the next generation of iRules that allows you to programmatically extend the functionality of BIG-IP with Node.js. What is Node.js... Read more
Average Rating: 4.9
3 Reviews

iRules Roundtable: State of the State

This iRules roundtable discussion covers the state of F5's BIG-IP iRules by some of F5's brightest. And me. Join Jason, Eric, Gary, and Kevin as they talk about lessons learned, iRules status as the old man on campus given the introduction... Read more
1 Review

Introducing iRules LX

iRules LX is the next stage of evolution for network programmability that brings Node.js language support to the BIG-IP with version 12.1... Read more
Average Rating: 4.9
3 Reviews

Handy Reference: RegEx in the Network

Over the years I’ve shared a lot of posts on using programmability in the network to do, well, a lot of different things. Like implement A/B testing, and Canary deployments, and proxying requests for memcached. All these patterns can be and are... Read more
2 Reviews