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Category Archives for "Networking"

Microsoft adds virtual cores to Windows Server licensing

Microsoft has announced a major update to its Windows Server licensing program, which in part was driven by threats of legal action by the European Union.The most notable change is adding the option of licensing Windows Server based on virtual cores in addition to the current option of paying based on the number of physical processor cores in host machines. [ Get regularly scheduled insights by signing up for Network World newsletters. ] “Today, Windows Server is licensed by physical core, which means customers must have access to the physical server hardware to ensure that they have enough Windows Server licenses to cover all physical cores in the machine,” wrote Nicole Dezen, Microsoft’s chief partner officer, in  a blog post.To read this article in full, please click here

Microsoft adds virtual cores to Windows Server licensing

Microsoft has announced a major update to its Windows Server licensing program, which in part was driven by threats of legal action by the European Union.The most notable change is adding the option of licensing Windows Server based on virtual cores in addition to the current option of paying based on the number of physical processor cores in host machines. [ Get regularly scheduled insights by signing up for Network World newsletters. ] “Today, Windows Server is licensed by physical core, which means customers must have access to the physical server hardware to ensure that they have enough Windows Server licenses to cover all physical cores in the machine,” wrote Nicole Dezen, Microsoft’s chief partner officer, in  a blog post.To read this article in full, please click here

Microsoft adds virtual cores to Windows Server licensing

Microsoft has announced a major update to its Windows Server licensing program, which in part was driven by threats of legal action by the European Union.The most notable change is adding the option of licensing Windows Server based on virtual cores in addition to the current option of paying based on the number of physical processor cores in host machines. [ Get regularly scheduled insights by signing up for Network World newsletters. ] “Today, Windows Server is licensed by physical core, which means customers must have access to the physical server hardware to ensure that they have enough Windows Server licenses to cover all physical cores in the machine,” wrote Nicole Dezen, Microsoft’s chief partner officer, in  a blog post.To read this article in full, please click here

Microsoft adds virtual cores to Windows Server licensing

Microsoft has announced a major update to its Windows Server licensing program, which in part was driven by threats of legal action by the European Union.The most notable change is adding the option of licensing Windows Server based on virtual cores in addition to the current option of paying based on the number of physical processor cores in host machines. [ Get regularly scheduled insights by signing up for Network World newsletters. ] “Today, Windows Server is licensed by physical core, which means customers must have access to the physical server hardware to ensure that they have enough Windows Server licenses to cover all physical cores in the machine,” wrote Nicole Dezen, Microsoft’s chief partner officer, in  a blog post.To read this article in full, please click here

Building High-Available Web Services: Open Source Load Balancing Based on HAProxy + FRR and Origin Web Server Based on NGINX Connected to Arista EVPN/VXLAN. Part 2 – Configuration and Validation.

Hello my friend,

In the previous blogpost we have started discussion about the Open Source Load Balancing solution, which leverages HAProxy and FRR, which is connected to the data centre fabric running EVPN/VXLAN on Arista EOS switches and serving content from NGINX-based origin servers. In that blogpost we covered the architectural guidelines and design principles. Today we will cover the configuration and the validation of the solution.


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prior permission of the author.

What Is More Important: Network Technologies or Network Automation?

The truth is that both disciplines are equally important. Knowledge and skills in network technologies will allow you to build great connectivity solutions to empower businesses across the globe and spread its capabilities as nowadays, perhaps, 99% of all business operations leverage IT and network technologies either entirely or at least partially. In its turn, network automation allows to make operational activities (e.g., configuration, troubleshooting, analysis, etc) much more precise and predictable, decreasing the probability of outages or Continue reading

Feedback Appreciated: Next-Generation Metro Area Networks

Etienne-Victor Depasquale, a researcher at University of Malta, is trying to figure out what technologies service providers use to build real-life metro-area networks, and what services they offer on top of that infrastructure.

If you happen to be involved with a metro area network, he’d love to hear from you – please fill in this survey – and he promised that he’ll share the results of the survey with the participants.

Feedback Appreciated: Next-Generation Metro Area Networks

Etienne-Victor Depasquale, a researcher at University of Malta, is trying to figure out what technologies service providers use to build real-life metro-area networks, and what services they offer on top of that infrastructure.

If you happen to be involved with a metro area network, he’d love to hear from you – please fill in this survey – and he promised that he’ll share the results of the survey with the participants.

Blocking Kiwifarms

Blocking Kiwifarms

We have blocked Kiwifarms. Visitors to any of the Kiwifarms sites that use any of Cloudflare's services will see a Cloudflare block page and a link to this post. Kiwifarms may move their sites to other providers and, in doing so, come back online, but we have taken steps to block their content from being accessed through our infrastructure.

This is an extraordinary decision for us to make and, given Cloudflare's role as an Internet infrastructure provider, a dangerous one that we are not comfortable with. However, the rhetoric on the Kiwifarms site and specific, targeted threats have escalated over the last 48 hours to the point that we believe there is an unprecedented emergency and immediate threat to human life unlike we have previously seen from Kiwifarms or any other customer before.

Escalating threats

Kiwifarms has frequently been host to revolting content. Revolting content alone does not create an emergency situation that necessitates the action we are taking today. Beginning approximately two weeks ago, a pressure campaign started with the goal to deplatform Kiwifarms. That pressure campaign targeted Cloudflare as well as other providers utilized by the site.

Cloudflare provides security services to Kiwifarms, protecting them from DDoS and Continue reading

Lessons Learned Working Abroad

This post was originally published in the Packet Pushers’ Human Infrastructure newsletter on September 1, 2022. You can subscribe to the newsletter for free here. Over a year ago, my wife and I moved from the eastern United States to Seoul, South Korea. A great opportunity presented itself for her career, and my US-based employer was […]

The post Lessons Learned Working Abroad appeared first on Packet Pushers.

When Were You Last a Beginner?

In a couple of weeks I’m taking the opportunity to broaden my leadership horizons by attending the BSA leadership course known as Philmont Leadership Challenge. It’s a course that builds on a lot of the things that I’ve been learning and teaching for the past five years. It’s designed to be a sort of capstone for servant leadership and learning how to inspire others. I’m excited to be a part of it in large part because I get to participate for a change.

Being a member of the staff for my local council Wood Badge courses has given me a great opportunity to learn the material inside and out. I love being able to teach and see others grow into leaders. It’s also inspired me to share some of those lessons here to help others in the IT community that might not have the chance to attend a course like that. However the past 3 years have also shown me the value of being a beginner at something from time to time.

Square One

Everyone is new at something. No one is born knowing every piece of information they’ll need to know for their entire lives. We learn language and Continue reading

Heavy Networking 645: Secure Wireless Planning And Design

On today’s episode of Heavy Networking, we discuss secure wireless planning and design with Jennifer "JJ Minella. JJ is the author of the book "Wireless Security Architecture." We talk about the goals for planning a wireless design, why it's worth the upfront investment, keeping operators in mind as you design your deployment, the importance of communication, design iteration, and more.

The post Heavy Networking 645: Secure Wireless Planning And Design appeared first on Packet Pushers.

Heavy Networking 645: Secure Wireless Planning And Design

On today’s episode of Heavy Networking, we discuss secure wireless planning and design with Jennifer "JJ Minella. JJ is the author of the book "Wireless Security Architecture." We talk about the goals for planning a wireless design, why it's worth the upfront investment, keeping operators in mind as you design your deployment, the importance of communication, design iteration, and more.

Log analytics using ClickHouse

Log analytics using ClickHouse

This is an adapted transcript of a talk we gave at Monitorama 2022. You can find the slides with presenter’s notes here and video here.

Log analytics using ClickHouse

When a request at Cloudflare throws an error, information gets logged in our requests_error pipeline. The error logs are used to help troubleshoot customer-specific or network-wide issues.

We, Site Reliability Engineers (SREs), manage the logging platform. We have been running Elasticsearch clusters for many years and during these years, the log volume has increased drastically. With the log volume increase, we started facing a few issues. Slow query performance and high resource consumption to list a few. We aimed to improve the log consumer's experience by improving query performance and providing cost-effective solutions for storing logs. This blog post discusses challenges with logging pipelines and how we designed the new architecture to make it faster and cost-efficient.

Before we dive into challenges in maintaining the logging pipelines, let us look at the characteristics of logs.

Characteristics of logs

Log analytics using ClickHouse

Unpredictable - In today's world, where there are tons of microservices, the amount of logs a centralized logging system will receive is very unpredictable. There are various reasons why capacity estimation of log volume is so difficult. Continue reading

Google employees at loggerheads with company over defense contract, again

A group of Google employees are yet again speaking out against Google’s defense contracts, this time asking the company to shelve its $1.2 billion Project Nimbus contract for the Israeli government and military. Google partnered with Amazon to bid for the project.Under employee pressure, Google has previously dropped one US government defence contract (Project Maven), and shied away from another (JEDI).In a video posted on Youtube, a group of Google employees including Palestinian, Jewish, Muslim, and Arab staff expressed their concerns over Project Nimbus, which they claim will provide surveillance and other forms of powerful AI technology to the Israeli government and military. They are also speaking out against “the anti-Palestinian bias” they have witnessed within the company. To read this article in full, please click here