Kubernetes For Network Engineers – Lesson 4: Kubernetes Networking Under The Hood – Video
In this video, host Michael Levan shows the basics of using Weave to enable simple networking within Kubernetes. He also shares how to find instructions to use Cisco ACI and Flannel. Michael Levan brings his background in system administration, software development, and DevOps to this video series. He has Kubernetes experience as both a developer […]
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Hedge 138: The Robustness Principle
Most network engineers take it as a “given” that the robustness principle is the “right way” to build protocols and networks—”be conservative in what you send, and liberal in what you receive.” The idea behind the robustness principle is that implementations should implement specifications as accurately as possible, but they should also accept malformed and otherwise erroneous data, process the best they can, and drop the bits they cannot process. This should allow the network to operate correctly in the face of defects and other failures. A recent draft, draft-iab-protocol-maintenance/, challenges the assumptions behind the robustness principle. Join Tom and Russ as they discuss the robustness principle and its potential problems.
As CUDA Is To GPU, QODA is To Quantum Compute
In Nvidia’s decade and a half push to make GPU acceleration core to all kinds of high performance computing, a key component has been the CUDA parallel computing platform that made it easier for developers to create applications that can leverage graphics chips for general purpose processing. …
As CUDA Is To GPU, QODA is To Quantum Compute was written by Jeffrey Burt at The Next Platform.
Enabling Continuous Compliance for a Global Financial Gluware Customer: Livestream 28 June 2022 1/7 – Video
Regulated industries such as financials often feel the pain of a current audit or upcoming audit. Implementing network automation with a product like Gluware can enable continuous compliance. Julie Wehling, Solutions Architect, Gluware; and Greg Ferro, Co-Founder, Packet Pushers discuss a real-world customer use case in which a global financial services company used Gluware to […]
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3 Trends to Watch in NetOps
Achieving network visibility anywhere, on-premises, in the data center, in the cloud, or from any network is a critical capability for NetOps success.Day Two Cloud 154: Can eBPF Replace Sidecar Proxies?
Today's Day Two Cloud turns the nerd knob to eleven as we delve into kernels, eBPF, sidecar proxies, and service meshes. If you're an old-school engineer used to working with load balancers and proxies, this show looks at new ways to do application delivery in the Kubernetes world.Ansible For Network Automation Lesson 2: Getting To Know Ansible – Video
In this lesson on using Ansible to automate network tasks, instructor Josh Vanderra covers the following topics: -Ansible origins -Inventory files -The Ansible playbook structure: Tasks Plays Playbooks Roles -Using the debug module Josh has created a GitHub repo to store additional material, including links and documentation: https://github.com/jvanderaa/AnsibleForNetworkAutomation You can subscribe to the Packet Pushers’ […]
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35,000 new trees in Nova Scotia
Cloudflare is proud to announce the first 35,000 trees from our commitment to help clean up bad bots (and the climate) have been planted.
Working with our partners at One Tree Planted (OTP), Cloudflare was able to support the restoration of 20 hectares of land at Victoria Park in Nova Scotia, Canada. The 130-year-old natural woodland park is located in the heart of Truro, NS, and includes over 3,000 acres of hiking and biking trails through natural gorges, rivers, and waterfalls, as well as an old-growth eastern hemlock forest.
The planting projects added red spruce, black spruce, eastern white pine, eastern larch, northern red oak, sugar maple, yellow birch, and jack pine to two areas of the park. The first area was a section of the park that recently lost a number of old conifers due to insect attacks. The second was an area previously used as a municipal dump, which has since been covered by a clay cap and topsoil.
Our tree commitment began far from the Canadian woodlands. In 2019, we launched an ambitious tool called Bot Fight Mode, which for the first time fought back against bots, targeting scrapers and other automated actors.
Our Continue reading
When localhost isn’t what it seems in Red Hat Ansible Automation Platform 2
With Red Hat Ansible Automation Platform 2 and the advent of automation execution environments, some behaviors are now different for. This blog explains the use case around using localhost and options for sharing data and persistent data storage, for VM-based Ansible Automation Platform 2 deployments.
With Ansible Automation Platform 2 and its containerised execution environments, the concept of localhost has altered. Before Ansible Automation Platform 2, you could run a job against localhost, which translated into running on the underlying tower host. You could use this to store data and persistent artifacts, although this was not always a good idea or best practice.
Now with Ansible Automation Platform 2, localhost means you’re running inside a container, which is ephemeral in nature. This means we must do things differently to achieve the same goal. If you consider this a backwards move, think again. In fact, localhost is now no longer tied to a particular host, and with portable execution environments, this means it can run anywhere, with the right environment and software prerequisites already embedded into the execution environment container.
So, if we now have a temporal runtime container and we want to use existing data or persistent data, Continue reading