Automate file uploads to your Cisco Nexus switches

If you have more than three Cisco Nexus switches in nx-os mode, and you are not using Cisco DCNM or any other similar tool, you probably already have encountered this question: How to automate file uploads to your Cisco Nexus switches? Here is a turnkey Python script using Netmiko’s SCP function to do this. This script is very simple, it relies only on Netmiko functions and SCP. But it does its job very well and I share it here because it can certainly help you to save time.   What…

The post Automate file uploads to your Cisco Nexus switches appeared first on AboutNetworks.net.

Former Check Point Execs Score $20M for Orca Security

With the Series A round, in addition to $6.5 million in seed funding, Orca plans to double its team...

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Setting up Cloudflare for Teams as a Start-Up Business

Earlier this year, Cloudflare acquired S2 Systems. We were a start-up in Kirkland, Washington and now we are home to Cloudflare’s Seattle-area office.

Our team developed a new approach to remote browser isolation (RBI), a technology that runs your web browser in a cloud data center, stopping threats on the Internet from executing any code on your machine. The closer we can bring that data center to the user, the faster we can make that experience. Since the acquisition, we have been focused on running our RBI platform in every one of Cloudflare’s data centers in 200 cities around the world.

The RBI solution will join a product suite that we call Cloudflare for Teams, which consists of two products: Access and Gateway.

Those two products solve a number of problems that companies have with securing users, devices, and data. As a start-up, we struggled with a few of these challenges in really painful ways:

• How do we let prospects securely trial our RBI platform?
• How do we keep our small office secure without an IT staff?
• How can we connect to the powerful, but physically clunky and heavy development machines, when we are not in that office?

Dogfooding Continue reading

Dictionary: fauxpology

Define fauxpology

The post Dictionary: fauxpology appeared first on EtherealMind.

HS. Part 5. Automation at high-scale: Bringing network up (Docker SONIC-P4 and Linux bridges) based on the network graph.

Hello my friend,

Finally we approached the point where we start dealing with the network functions again, now at a high scale. After we have successfully generated the configuration files for our Microsoft Azure SONiC network functions, it is a time to boot them, span them and get the emulated data centre up and running.

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Network automation training – now as a self-paced course as well

Following your asks we open a new format for the network automation training – self-paced format:

• It doesn’t matter what your timezone is.
• It doesn’t matter how much hours weekly do you have to study.
• It doesn’t matter how solid is your current background in automation, scripting and software development.

Because you decide on your own when, how often and how quickly you can learn.

At this training we teach you all the necessary concepts such as YANG data modelling, working with JSON/YAML/XML data formats, Linux administration basics, programming in Continue reading

Using Elastic Stack in Networking and Security

Andrea Dainese is continuing his journey through open-source NetDevOps land. This time he decided to focus on log management systems, chose Elastic Stack, and wrote an article describing what it is, why a networking engineer should look at it, and what’s the easiest way to start.

Building a Scalable Document Pre-Processing Pipeline

In a recent customer engagement, Quantiphi, Inc., a member of the Amazon Web Services Partner Network, built a solution capable of pre-processing tens of millions of PDF documents before sending them for inference by a machine learning (ML) model. While the customer's use case--and hence the ML model--was very specific to their needs, the pipeline that does the pre-processing of documents is reusable for a wide array of document processing workloads. This post will walk you through the pre-processing pipeline architecture.

Daily Roundup: Cisco Debunks Security Myths

How Rakuten Mobile Corralled Vendors for Its Open RAN Vision

Complexities were abundant and corralling vendors for a virtualized, cloud-native, open radio...

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UCMP: Augmenting L3 only designs

An aspiration of modern web scale networking is to leverage a pure L3 solution and integrate it with anycast addresses to allow for load balancing functionality. So why is this design aspirational? Well it requires discipline in the way that applications are architected— specifically around tenancy requirements and application redundancy. In this blog I’ll discuss a recent augmentation that was introduced into Cumulus Linux 4.1 that makes this style of design much more flexible in web scale networks.

Common challenges

Two common challenges when using anycast addressing in layer 3 only solutions are:

• Resilient hashing to support the change in ECMP paths
• Balancing traffic across unequal cost advertisements

Solutions

The first solution was implemented back in the early version of Cumulus Linux and is well documented. This solution is also known as “RASH” as the colloquial term.

The second solution addresses an interesting artifact of the way Layer 3 routes are advertised and learned, specifically with regards to next hop selection. Let us imagine the following simplified design:

The IP address of 192.168.1.101 is an anycast address that is being advertised by 3 different hosts in our environment. These three hosts are all serving the exact Continue reading

Nvidia Will Buy Cumulus Networks

Together with Mellanox, Nvidia says Cumulus’ open networking platform will help accelerate the...

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Docker Desktop: WSL 2 Best practices

Docker Desktop WSL 2 backend has now been available for a few months for Windows 10 insider users and Microsoft just released WSL 2 on the Release Preview channel (which means GA is very close). We and our early users have accumulated some experience working with it and are excited to share a few best practices to implement in your Linux container projects!

Docker Desktop with the WSL 2 backend can be used as before from a Windows terminal. We focused on compatibility to keep you happy with your current development workflow.

But to get the most out of Windows 10 2004 we have some recommendations for you.

Fully embrace WSL 2

The first and most important best practice we want to share, is to fully embrace WSL 2. Your project files should be stored within your WSL 2 distro of choice, you should run the docker CLI from this distro, and you should avoid accessing files stored on the Windows host as much as possible.

For backward compatibility reasons, we kept the possibility to interact with Docker from the Windows CLI, but it is not the preferred option anymore.

Running docker CLI from WSL will bring you…

Awesome mounts Continue reading

Part 2: The DynamoDB Book: An Interview With Alex DeBrie On His New Book

This is the second part of my interview with Alex DeBrie on his new insta-classic: The DynamoDB Book.

To read the first part of the interview please mosey on over to The DynamoDB Book: An Interview With Alex DeBrie On His New Book. Go ahead. Take your time. It's worth it.

Quick Fire Round. What's your quick reaction to:

T-Mobile Claims 5 Standalone 5G Firsts

Today’s 5G networks are effectively piggybacking on 4G LTE, but T-Mobile and others soon plan to...

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Basic Linux Networking tips and tricks part-3: ss and netstat commands

Here is the third post of the series on basic network troubleshooting and tools under RHEL / CentOS. In this post, I will talk about the netstat and ss commands.   Others posts of the series This post is part of a series about basic Linux Networking tips and tricks. The others posts of this series are: The ip and nmcli commands The mtr command The ss and netstat commands The curl command   netstat The netstat command is a network utility used to display network connections, protocol  or interfaces…

The post Basic Linux Networking tips and tricks part-3: ss and netstat commands appeared first on AboutNetworks.net.

Network Break 282: NVIDIA Completes Mellanox Acquisition; SpaceX Sets Date For Satellite Internet Beta Testing

Network Break 282: NVIDIA Completes Mellanox Acquisition; SpaceX Sets Date For Satellite Internet Beta Testing

The latest Network Break podcast examines NVIDIA's just-completed Mellanox acquisition, beta testing dates from SpaceX, the latest version of Cumulus Networks' NetQ management software, plus quarterly financial news for Juniper, Microsoft, and Amazon

The post Network Break 282: NVIDIA Completes Mellanox Acquisition; SpaceX Sets Date For Satellite Internet Beta Testing appeared first on Packet Pushers.

State of the Internet – Job Snijders, IP Development Engineer @ NTT

In this episode Job Snijders shares some of his perspective on the current state of the Internet. 

As you can expect when talking to Job, one of the topics is BGP Routing Security. We also touch on his work in IETF, OpenBSD, transit vs peering and IPv4 address exhaustion.

Listen below or subscribe in your favourite podcast player on the home screen!

A single dashboard for Cloudflare for Teams

Starting today, Cloudflare Access can now be used in the Cloudflare for Teams dashboard. You can manage security policies for your people and devices in the same place that you build zero-trust rules to protect your applications and resources. Everything is now in one place in a single dashboard.

We are excited to launch a new UI that can be used across the entire Teams platform, but we didn’t build this dashboard just for the sake of a new look-and-feel. While migrating the Access dashboard, we focused on solving one of the largest sources of user confusion in the product.

This post breaks down why the original  UI caused some headaches, how we think about objects in Cloudflare for Teams, and how we set out to fix the way we display that to our users.

Cloudflare Access

Cloudflare Access is one-half of Cloudflare for Teams, a security platform that runs on Cloudflare’s network. Teams protects users, devices and data  without compromising experience or performance. We built Cloudflare Access to solve our own headaches with private networks as we grew from a team concentrated in a single office to a globally distributed organization.

Cloudflare Access replaces corporate VPNs with Cloudflare’s Continue reading

Hot On The Heels Of Mellanox, Nvidia Snaps Up Cumulus Networks

Last week, when we talked to Nvidia co-founder and chief executive officer, Jensen Huang, about how the datacenter was becoming the unit of compute and in such a world networking was critical, it was obvious that acquiring Mellanox Technologies for $6.9 …

Hot On The Heels Of Mellanox, Nvidia Snaps Up Cumulus Networks was written by Timothy Prickett Morgan at The Next Platform.