Bogdan Golab sent me a link to an (open access) article in Ethics and Information Technology arguing why ChatGPT is bullshit. Straight from the introduction:
Because these programs cannot themselves be concerned with truth, and because they are designed to produce text that looks truth-apt without any actual concern for truth, it seems appropriate to call their outputs bullshit.
Have fun!
One of my readers sent me this remark (probably while trying to work on the EBGP Sessions over the IPv6 LLA Interfaces lab):
I did attempt some of your labs, like IPv6 link-local-only BGP with FRR hosts, but FRR seemed not to play ball, or I was just doing it wrong.
As he was already using netlab, I could send him a cheat code:
Yesterday, I explained how you can run netlab examples in GitHub codespaces and mentioned that they work best with vendors who understand the value of frictionless downloads. But what if you’d like to use a device from one of the good guys who provide the container images but require a registration?
It turns out the solution is trivial:
Good morning! How are you?
I’d like to talk about keynotes, again. You know, one of my favorite subjects. I’ve been watching them intently for the past few years just hoping that we’re going to see something different. As a technical analyst and practitioner I love to see and hear the details behind the technology that drive the way our IT companies develop. Yet every year I feel more and more disappointed by the way that keynotes take everything and push it into the stratosphere to get an 80,000 foot view of the technology. It’s almost like the keynotes aren’t written for practitioners. Why? The answer lies in the statement at the top of this post.
When most people ask someone how their day is going they’re not actually looking for a real response. They most certainly aren’t asking for details on how exactly the person’s day is going. They’re usually looking for one of two things:
Any more than that drags someone down into a conversation that they don’t want to have. Asking someone about their day is a polite way of acknowledging them and making a bit of small Continue reading
In this article, we explore the capabilities and limitations of the Luma AI Dream Machine. […]
The post Testing Luma AI Dream Machine first appeared on Brezular's Blog.
Segment Routing was supposed to make MPLS easier and give more power to network operators. Sadly, vendors decided to make it harder by selling weird protocols and over-engineered controller bloatware.
Despite some anti-MPLS marketing from SD-WAN …
Welcome to today's blog post where we're focusing on AWS Networking fundamentals. If you're new to AWS or just want to better understand AWS Networking, you've come to the right place.
We'll start by talking about Regions and Availability Zones (AZ). These are the building blocks of AWS infrastructure. Next, we'll cover how to set up your own Virtual Private Cloud (VPC). This will be your private space in the AWS cloud where you can launch resources. From there, we'll discuss subnets, breaking down the difference between public and private ones. Knowing this will help you better plan your network architecture.
To wrap it all up, we'll go through the steps of creating an EC2 instance (Linux server). Not only that, but we'll also walk you through accessing this instance over the Internet. This will give you a full-circle understanding of AWS networking basics.
If you're brand new to AWS, don't worry. This blog post focuses on AWS basic networking, so having some general networking knowledge is a plus but not a requirement. I'll explain things in clear detail to make sure everyone can follow along.
For those of you who are Network Engineers or familiar with another cloud Continue reading
A few days ago, someone asked me about the IPv4 next-hop details of running interface EBGP sessions. I pointed him to a blog post explaining them, adding, “And of course, you can test that in netlab.” A few minutes later, it hit me: instead of asking him to set up netlab locally, I could enable him to do that in a minute with GitHub codespaces.
Setting that up was easy: copy the .devcontainer directory from the BGP labs repository into the netlab examples repository and commit the change. After a short yak-shaving exercise (writing README files and rearranging a few folders), I successfully started the codespace and was ready for this blog post. There was just one gotcha…
How many times have you found yourself perfectly comfortable in your current job, only to be tempted by a new opportunity? We’ve all been there. It’s tough to leave a place where you know everyone and everything feels familiar. The new job might turn out to be fantastic, or it could be less than ideal. So, how do we overcome these fears and make the right choice? In this post, I’ll share my own journey, exploring what I learned from my experiences. Hopefully, my story can help you navigate your own career decisions with a bit more confidence.
I kicked off my career back in 2017, filled with an eagerness to learn and make rapid progress. During those early days, I was truly engaged in my work, often pulling long hours because all I could think about was advancing in my field. After spending a Continue reading
Added 11 new lessons in June:
Hi all, welcome back to yet another Palo Alto Firewall blog. Have you ever wanted to load partial config from one Palo Alto Firewall to another or from a Firewall to Panorama and vice versa? There could be times when you just want to import all address objects from one Firewall to another, for example. We could do this in multiple ways, but there is a simple way of doing this. Let’s get into how you can achieve this with just a few steps.
To demonstrate this, I have a firewall and Panorama. On the firewall, there are a few address objects, address groups, and a security policy that I want to import into Panorama, inside a specific device group. Let’s walk through the steps.
Hi everyone, welcome back to another blog post on Jinja2 and Python. I'm not an expert in Jinja2; I know enough to get by and I'm always learning new things. I'm familiar with using Jinja2's built-in filters like upper, lower, and capitalize, but just a few days ago, I discovered something new. I can make my own filters! It was a real "wow, how did I not know that?" moment. In this post, let's dive into an example of how to do just that.
Suresh Vina
Let's break down a very simple example of creating a custom Jinja2 filter. First, you need to understand the basic steps and the syntax involved. To start, you'll need to define a custom filter function in Python. This function will take an input, manipulate it as you specify, and return the modified output. In our example, the custom function will convert text to uppercase and add three exclamation marks at the end.
from Continue readingDisclaimer: All writings and opinions are my own and are interpreted solely from my understanding. Please contact the concerned support teams for a professional opinion, as technology and features change rapidly.
My name is Stephen King, and you are reading my novel. Absolutely Not! He is the most incredible author of all time! And you are reading my blog! One of my many, many, many interests is traffic mirroring and monitoring in public clouds, especially inter-VCN/VPC traffic. Traffic from an instance is mirrored and sent for any analysis, whether regulatory or troubleshooting. I quickly set up something in my OCI; the results and learnings are fascinating.
TLDR: Traffic Mirroring and Monitoring in Oracle OCI using VTAPs
Topology and a refresher
IGW helps us connect to the Internet, NLB helps us send traffic to VTAP-HOST mirrored from VTAP, and a DRG helps us communicate with other VCNs.
What is the end goal? Mirror and send all the traffic from Host-1 with IP 192.168.1.6 to VTAP-Host for further analysis.
Below is generated by OCI Network Visualiser, which is very cool.
A few things Continue reading