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Sorting, joining, shuffling, skipping and numbering lines on Linux

Whenever you need to work with lists that are stored as text files on Linux – especially long ones – you can take advantage of some easy commands to make manipulating them a lot easier. Any text file can be easily sorted, but you can also randomly arrange the lines, number them or join files when two share an initial common field. In fact, if you only want to see every other line or every fifth line in a file, you can do that too. This post runs through the commands to do all of these things.Sorting files The sort command makes sorting text files very easy. To view the contents of a text file in sorted order, all you need to do is type a command like this:To read this article in full, please click here

DNS is the new BGP

One of the big changes within the Internet over the last decade or so has been the shift to replicated services. Service replication allows each individual service point to be positioned closer to clusters of users. The question now becomes who (and how) selects the "best" service point to use in response to each user's service request. It seems that in many cases the answer is the DNS, and not the BGP routing protocol.

Transforming Container Network Security with Calico Container Firewall

In today’s cloud-driven landscape, containerized workloads are at the heart of modern applications, driving agility, scalability, and innovation. However, as these workloads become increasingly distributed across multi-cluster, multi-cloud, and hybrid environments, the challenge of securing them grows exponentially. Traditional network security measures designed for static network boundaries are ill-suited for the dynamic nature of containerized applications.

The Challenge: Protecting Cloud-Native Workloads

The rapid migration to the cloud has resulted in an explosion of cloud workloads, ranging from traditional applications with minimal cloud adaptation to cloud-native applications exploiting the cloud’s elasticity and scalability.

Cloud-native applications, in particular, rely on microservices architectures, ephemeral and highly elastic containers, and CI/CD automation through platforms like Kubernetes. These applications embrace the cloud’s dynamic nature but introduce unique security challenges. Unlike traditional workloads, cloud-native applications lack fixed network boundaries and are highly distributed across hybrid and multi-cloud environments. They demand a new approach to network security.

The Need for a Container Firewall in DevOps Flows:

The essence of DevOps is speed and automation. Containers and orchestration platforms like Kubernetes enable rapid software development and deployment. However, this agility brings heightened security concerns.

Traditional firewalls, rooted in perimeter defenses, struggle to secure dynamic containerized environments effectively.

Fig Continue reading

UK gov’t announces new $1.1B supercomputer and AI research facility

The UK government has announced it will build a £900 million (US$1.1 billion) supercomputer, to drive the country’s AI research and innovation capabilities.The supercomputer, dubbed Isambard-3 after the 19th century British civil and mechanical engineer Isambard Kingdom Brunel, is set to be installed at the National Composites Centre in Bristol later this year. The University of Bristol is home to the UKRI Centre for Doctoral Training in Interactive Artificial intelligence and is part of the GW4 group of universities — an alliance of research-intensive universities that also includes Bath, Cardiff and Exeter.Bristol University will also host the new AI Research Resource (AIRR or Isambard-AI), a national facility to help support AI research and promote the safe use of the technology. Both the supercomputer and AIRR are financed by the by the AI investment announced the government announced in March.To read this article in full, please click here

UK gov’t announces new $1.1B supercomputer and AI research facility

Day Two Cloud 210: Can Network Automation Catch Up To The Cloud?

On today's Day Two Cloud we discuss the state of network automation and whether and how it can catch up to automation in the public cloud. We look at network automation challenges, define boundaries with other elements of the infrastructure stack, the impact of cloud networking, whether AI and ML can help, and more. Our guests are Chris Grundemann and Scott Robohn, co-founders of the Network Automation Forum (NAF).

Day Two Cloud 210: Can Network Automation Catch Up To The Cloud?

The post Day Two Cloud 210: Can Network Automation Catch Up To The Cloud? appeared first on Packet Pushers.

Other Than Nvidia, Who Will Use Arm’s Neoverse V2 Core?

We are still plowing through the many, many presentions from the Hot Interconnects, Hot Chips, Google Cloud Next, and Meta Networking @ Scale conferences that all happened recently and at essentially the same time. …

The post Other Than Nvidia, Who Will Use Arm’s Neoverse V2 Core? first appeared on The Next Platform.

Other Than Nvidia, Who Will Use Arm’s Neoverse V2 Core? was written by Timothy Prickett Morgan at The Next Platform.

How to Stay Up and Running When the Cloud Goes Down – and Avoid Lock-ins

The dominance of a small set of cloud providers means many businesses find themselves in ‘one-stop shops’ where vendor lock-in remains a huge issue, especially when outages occur.

Building companies means building careers: why I joined Cloudflare as Chief People Officer

One piece of advice I received early in my career was to get into a transformative industry. Those words have followed me ever since, and it’s a goal I’ve encouraged many others to pursue.

For me, it meant first launching into biotechnology where I learned my passion for working with deeply technical and disruptive businesses doing things that hadn’t been done before.

I later joined Amazon at a time when it was best known as a retailer instead of a technology company as it is today. While there, I led HR for some of their most technical businesses from eCommerce to AWS. As all these businesses scaled over the next decade, I became increasingly focused, and then finally fully dedicated to, leading HR for AWS. During that time, I had the opportunity to serve as a thought partner to the AWS CEO and leadership team as the organization grew from 400 employees to 30,000.

It was at this point in my career that I realized my passion for scaling a company with practices that reinforce the mission and building programs with intention to nurture the culture. To have any impact, all this work must be in support of promoting a Continue reading

BGP Labs: Bidirectional Route Redistribution

In the next BGP labs exercise, you’ll build the customer part of an MPLS/VPN solution. You’ll use bidirectional OSPF-to-BGP route redistribution to connect two sites running OSPF over a Service Provider MPLS backbone.

BGP Labs: Bidirectional Route Redistribution

In the next BGP labs exercise you’ll build the customer part of an MPLS/VPN solution. You’ll use bidirectional OSPF-to-BGP route redistribution to connect two sites running OSPF over a Service Provider MPLS backbone.

I would strongly recommend to run labs with netlab, but if you like extra work, feel free to use any system you like including physical hardware.

How to Minimize Multi-Cloud Complexity

Successfully juggling multiple clouds can sometimes feel like performing a circus act. Fortunately, a few simple tricks can keep the task from becoming a showstopper.

Heavy Networking 700: Rethinking Networking and Security For The Campus And Branch With Fortinet (Sponsored)

On today's sponsored Heavy Networking we talk with Fortinet about how it converges network and security across the breadth of its portfolio. Fortinet is best known for its firewalls, but the company also offers campus and branch switches, has a wireless portfolio, offers SD-WAN and SASE, provides AI-supported operations, and more. We also talk about Fortinet's approach to the branch office that rethinks networking, security, and performance.

Heavy Networking 700: Rethinking Networking and Security For The Campus And Branch With Fortinet (Sponsored)

The post Heavy Networking 700: Rethinking Networking and Security For The Campus And Branch With Fortinet (Sponsored) appeared first on Packet Pushers.

Cisco software targets enterprise cloud security, risk assessment

Cisco is adding a security module to its observability platform that promises to help enterprises assess threat risks and protect cloud-based resources.The Cisco Secure Application module, available now, is part of the vendor’s Full Stack Observability (FSO) platform, which is designed to correlate data from application, networking, infrastructure, security, and cloud domains to make it easier for customers to spot anomalies, preempt and address performance problems, and improve threat mitigation.FSO is designed to make intelligent use of metrics, events, logs and traces. With it, organizations can consolidate to fewer tools, collect data from any source, correlate information, and enable AI-driven analysis to predict and prevent problems, Cisco said at the FSO launch event in June. To read this article in full, please click here

Cisco software targets enterprise cloud security, risk assessment

Global internet health check and network outage report

The reliability of services delivered by ISPs, cloud providers and conferencing services (such as unified communications-as-a-service) is critical for enterprise organizations. ThousandEyes monitors how providers are handling any performance challenges and provides Network World with a weekly roundup of interesting events that impact service delivery. Read on to see the latest analysis, and stop back next week for another update. Additional details available here.Internet report for September 4-10 ThousandEyes reported 184 global network outage events across ISPs, cloud service provider networks, collaboration app networks and edge networks (including DNS, content delivery networks, and security as a service) during the week of September 4-10. That’s up 12% from 164 outage events the week prior. Specific to the U.S., outages climbed from 66 to 91, an increase of 38%. Here’s a breakdown by category:To read this article in full, please click here

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