Today marks the 20th anniversary of Arista!
Over that time, our company has grown from nothing to #1 in Data Center Ethernet, a highly profitable $100+ billion S&P 500 company doing $6+ billion in annual revenue.
Michele Chubirka (currently at Google) kindly allowed me to make her PCI DSS for Networking Engineers webinar public (available without registration or login).
The webinar covers an older version of PCI DSS (version 3.0; the current version is 4.0.1), but as fundamentals never change, you might still find it useful.
I already had Palo Alto GlobalProtect VPN configured with an external gateway and portal, allowing me to connect back to my home network when I'm outside. Even when I'm inside my internal network, I can still connect to the VPN. However, I wanted to use the Internal Host Detection feature of GlobalProtect VPN, so that if I'm on my internal network and try to connect, it won't connect to the external gateway. Throughout the configurations, I learned a few lessons. Let’s dive in.
If you're completely new to GlobalProtect VPN, please check out my introductory blog post linked below.
Suresh Vina
Please note that this setup was tested on PAN-OS 10.2.9-h1 and the GlobalProtect macOS client version 6.2.4.
If you're already in your office or internal network, there's no need to connect to the VPN, what’s the point, right? This is especially relevant if you're using an Continue reading
With a near monopoly on advanced chip manufacturing and packaging, it is no wonder that during the AI boom that the world’s largest foundry is not only making money. …
No Slowdown At TSMC, Thanks To The AI Gold Rush was written by Timothy Prickett Morgan at The Next Platform.
Recently, I wanted to add a list of domains to the Palo Alto DNS policy to block them from resolving. However, I soon realized that I couldn't just add a list of domains directly to the firewall, I needed to use an External Dynamic List (EDL). Palo Alto and I believe other firewalls as well, require a simple HTTP URL that hosts a list of domains or IP addresses. While there are amazing EDL projects available, in this blog post, we'll explore the simplest way to deploy an EDL.
Python's HTTP server module lets you create a basic web server using just a single command. This server can serve files from a directory over the network, making it an excellent tool for quick testing and file sharing without the complexity of setting up a full-fledged web server.
All you need to do is create a list of domains, save it as a text file, and run python -m http.server 8085 from the directory where the file is saved. You can use any port, but remember that a lower number of ports like 80 require admin privileges. Once the server is running, navigate to http://IP_ADDRESS:8085/domains.txt in Continue reading
According to rumors, Nvidia is not expected to deliver optical interconnects for its GPU memory-lashing NVLink protocol until the “Rubin Ultra” GPU compute engine in 2027. …
One Laser To Pump Up AI Interconnect Bandwidth By 10X was written by Timothy Prickett Morgan at The Next Platform.
All trends with AI point up and to the right, and usually pretty sharply. …
AI Makes Liquid Cooling Normal – And Necessary – Again was written by Jeffrey Burt at The Next Platform.
Hono is a fast, lightweight web framework that runs anywhere JavaScript does, built with Web Standards. Of course, it runs on Cloudflare Workers.
It was three years ago, in December 2021. At that time, I wanted to create applications for Cloudflare Workers, but the code became verbose without using a framework, and couldn't find a framework that suited my needs. Itty-router was very nice but too simple. Worktop and Sunder did the same things I wanted to do, but their APIs weren't quite to my liking. I was also interested in creating a router — a program that determines which action is executed based on the HTTP method and URL path of the Request — made of a Trie tree structure because it’s fast. So, I started building a web framework with a Trie tree-based router.
“While trying to create my applications, I ended up creating my framework for them.” — a classic example of yak shaving. However, Hono is now used by many developers, including Cloudflare, which uses Hono in core products. So, this journey into the depths of yak shaving was ultimately meaningful.
Hono truly runs anywhere — not just on Cloudflare Continue reading
SPONSORED POST: Google’s Gemini at Work digital event took place on September 24 – and you can register to watch the highlights on demand. …
Where AI Meets Everyday Business Apps was written by David Gordon at The Next Platform.
Now that we know a bit more about addresses in a networking stack (read the whole series) and why CLNP uses node addresses while TCP/IP uses interface addresses, let’s see how they solve common addressing problems like finding adjacent nodes.
Let’s start with the elephant in the room: how do you know whether you can reach a host you want to communicate with directly? In the following diagram, how does A know whether B is sitting next to it?
This post describes how to install Active Directory Certificate Services (ADCS) onto a domain controller. It’s for labbing purposes which means I’m going to run this all on a single server instead of a more realistic setup with offline root, issuing CA, and possibly intermediate CA. Don’t use this post for anything designed to go into production!
To add the ADCS role. Go to Server Manager, click Add roles and features. Click Next until you get to Server Roles. Select Active Directory Certificate Series:
Click Add Features. Click Next. Click Next. Then a warning is displayed that it’s not possible to change the computer name or domain settings:
Click Next. Select Certification Authority and Certification Authority Web Enrollment:
Selecting Certification Authority Web Enrollment will install IIS and a small web site will be built to provide certificate services.
Click Add Features. Click Next. Click Next. Select Restart the destination server automatically if required:
Click Install. The installation starts:
When the installation has finished, click Close. Click AD CS in Server Manager. Click More… where it says Configuration required for Active Directory Certificate Services:
Click Configure Active Directory Certificate Services on the destination server:
Select an Continue reading
Dmytro Shypovalov wrote a great series of detailed posts on Egress Peer Engineering:
Have fun!
One of the oldest ideas in humanity – and one that may have predated language as we know it – is that the enemy of my enemy is my friend. …
Intel And AMD Make X Less Of A Variable For X86 Processors was written by Timothy Prickett Morgan at The Next Platform.