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Hey ChatGPT, can you write iRules?

iRules allow you to parse the payload of the data passing through the BIG-IP and, at wire speed, execute an entire script of commands on that traffic.They allow you to log and redirecting traffic, modify the URI or port or to rewrite the payload itse...

Building a lab using Proxmox

Whether you’re playing around with some new NGINX features, the latest F5 release or maybe just some generic servers or systems you always wanted to have a look at, having a lab environment is extremely useful. I’ve been running lab environments for...

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Setting up persistence in F5 XC

Following up on my previous community article about Layer 7 Content Switching in F5 Distributed Cloud (XC) I wanted to share my experience setting up persistence. Again the terms used in XC differ from the terms we are used to from BIG-IP, but they a...

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Layer 7 Content Routing in F5 XC

Many of us are well-versed in setting up Layer 7 Content Switching, based on an URL Path or based on the Host header, with iRules or with LTM Local Traffic Policies. Now I have been tasked to setup Layer 7 Content Switching based on the Host header ...

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Perform out-of-place upgrade of vCMP guests via Ansible

Are you exploring options to upgrade your F5 vCMP guests? Check out the approach we took to perform an out-of-place upgrade of F5 BIG-IP LTM and F5 BIG-IP DNS vCMP guests from version 12.x to 15.x running on a multi-chassis architecture.You will read...

reesek by Altocumulus
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3D printed coaster with the F5 logo

Howdy! I made a coaster this summer and promised I'd share the code. Well, here it is! https://loadbalancing.se/downloads/f5logo.stl.zip Import it to your favorite 3D modeling programChange if you wishExport to your slicerSlice it so you can change c...

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Certificate Expiry Email alert configuration

Here are steps to receive certificate expiry email alertStep 1.update /config/ user_alert.conf directory with alert CERTIFICATE_EXPIRED "Certificate (.*) expired" {snmptrap OID=".1.3.6.1.4.1.3375.2.4.0.300";email toaddress="xyz@domain.com"fromaddress...

How much bandwidth are we using?

How to determine how much bandwidth your BIG-IP is actually using? Future licensing has a 200Mbps licensing limitation divided across TMM's (K15831) and we need to know if the current usage is greater than this. We are running BIGIP version 12.1.2. S...

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