Here are the slides I presented for FRnOG #36 in September 2022. They are about Akvorado, a tool to collect network flows and visualize them. It was developped by Free. I didn’t get time to publish a blog post yet, but it should happen soon!
The presentation, in French, was recorded. I have added English subtitles.
Most people carry a spare tire in their car. It’s there in case you get a flat and need to change the tire before you can be on your way again. In my old VAR job I drove a lot away from home and to the middle of nowhere so I didn’t want to rely on roadside assistance. Instead I just grabbed the extra tire out of the back if I needed it and went on my way. However, the process wasn’t entirely hitless. Even the pit crew for a racing team needs time to change tires. I could probably get it done in 20 minutes with appropriate cursing but those were 20 minutes that I wasn’t doing anything else beyond fixing a tire.
Spare tires are redundant. You have an extra thing to replace something that isn’t working. IT operations teams are familiar with redundant systems. Maybe you have a cold spare on the shelf for a switch that might go down. You might have a cold or warm data center location for a disaster. You could even have redundant devices in your enterprise to help you get back in to your equipment if something causes it to go Continue reading
The last video in the 2-hour-long Network Addressing part of How Networks Really Work discusses Network Address Translation.
After watching it, you might want to spend some extra quality time (with a bit of soap opera vibe) enjoying the recent Dual ISP deployment operational issues and uncertainties thread on the v6ops mailing list with a “surprising” result: NPTv6 or NAT66 is the least horrible way to do it.
Juniper Apstra has introduced Freeform, a new way to consume Apstra's data center automation platform without being tied to stringent reference architectures. While Freeform expands the network topologies and protocols Apstra can work with, it comes with its own tradeoffs.
The post Juniper Apstra Freeform Supports New Topologies, Protocols For Data Center Automation–With Caveats appeared first on Packet Pushers.
In this episode, host Michael Levan talks with Ned Bellavance about why orchestration is important in today’s world, how the HashiCorp stack (primarily Terraform and Vault) fit into Kubernetes, and more.
The post Kubernetes Unpacked 009: Kubernetes Automation And Repeatability appeared first on Packet Pushers.
In this blog post, we’re going to talk about how we use Cloudflare R2 as an apt/yum repository to bring cloudflared (the Cloudflare Tunnel daemon) to your Debian/Ubuntu and CentOS/RHEL systems and how you can do it for your own distributable in a few easy steps!
I work on Cloudflare Tunnel, a product which enables customers to quickly connect their private networks and services through the Cloudflare global network without needing to expose any public IPs or ports through their firewall. Cloudflare Tunnel is managed for users by cloudflared, a tool that runs on the same network as the private services. It proxies traffic for these services via Cloudflare, and users can then access these services securely through the Cloudflare network.
Our connector, cloudflared, was designed to be lightweight and flexible enough to be effectively deployed on a Raspberry Pi, a router, your laptop, or a server running on a data center with applications ranging from IoT control to private networking. Naturally, this means cloudflared comes built for a myriad of operating systems, architectures and package distributions: You could download the appropriate package from our GitHub releases, brew install it or apt/yum install it (https://pkg.cloudflare. Continue reading
I keep hearing numerous variations of the following argument from people believing in the unlimited powers of multi-cloud1 (deploying your workloads in multiple public cloud providers):
We don’t install all our servers in the same DC. But would you trust one Cloud Server Provider with all your applications? That’s why you should use multi-cloud.
I’ve been hearing similar arguments for at least 30 years, including: