Happy to inform you that we’ve just released the new NFA version 21.05. Highlights of this Noction Flow Analyzer release include: Multiple
The post NFA v 21.05: multiple ASN info sources, support for MPLS labels, and more. appeared first on Noction.
Here is another post of the series on basic network troubleshooting and tools under Linux. In this post, I will talk about tcpdump. Other posts of the series This post is part of a series of basic Linux Networking tips and tricks. The other posts of this series are: The ip and nmcli commands The mtr command The ss and netstat commands The curl command tcpdump Introduction I think the most essential element to debug a network problem is a packet capture tool or sniffer, and the most common one…
The post Basic Linux Networking tips and tricks part-5: tcpdump appeared first on AboutNetworks.net.
In June 2020, a friend asked me to do a short presentation on lessons learned during my 35 years as a networking engineer. It went reasonably well, so I decided to turn it into a webinar, starting with regardless of what the disruptive marketers tell you, technology still matters.
In June 2020, a friend of mine asked me to do a short presentation on lessons learned during my 35 years of being a networking engineer. It went reasonably well, so I decided to turn it into a webinar, starting with regardless of what the disruptive marketers tell you, technology still matters.
PROMO Today’s AI and HPC systems can encompass 1,000s of CPUs and GPUs, all drawing on vast amounts of memory and storage. …
Flaky I/O Getting You Down? This Panel Promises Some Light Relief was written by David Gordon at The Next Platform.
The tight linkage between chip designs and chip manufacturing processes has caused its shared of havoc in the IT sector, and it is getting worse as Moore’s Law has slowed and Dennard scaling died a decade ago. …
Why IBM Is Suing GlobalFoundries Over Chip Roadmap Failures was written by Timothy Prickett Morgan at The Next Platform.
Calico is the industry standard for Kubernetes networking and security. It offers a proven platform for your workloads across a huge range of environments, including cloud, hybrid, and on-premises.
Given this incredibly wide support, why did we decide to create a course specifically about AWS?
Well, our previous online course continues to be a great success (it’s self-paced, so if you haven’t already, we would love for you to take it and become an expert in Kubernetes networking and security). The course covers how Kubernetes networking works, how to configure and manage a Calico network, and how to secure your Kubernetes cluster.
Once you know the underlying concepts, it becomes a more important consideration to identify the nuanced differences between possible implementations. These become even more relevant once you have selected a platform to move forward with.
Amazon’s cloud computing platform, AWS, has played a huge role in changing the landscape around how users consume compute resources and data. As little as ten years ago, it would have been difficult to anticipate the speed with which companies and other organizations would embrace moving their precious compute resources and data out of their Continue reading
Starting today, you can build identity-aware, Zero Trust network policies using Cloudflare for Teams. You can apply these rules to connections bound for the public Internet or for traffic inside a private network running on Cloudflare. These rules are enforced in Cloudflare’s network of data centers in over 200 cities around the world, giving your team comprehensive network filtering and logging, wherever your users work, without slowing them down.
Last week, my teammate Pete’s blog post described the release of network-based policies in Cloudflare for Teams. Your team can now keep users safe from threats by limiting the ports and IPs that devices in your fleet can reach. With that release, security teams can now replace even more security appliances with Cloudflare’s network.
We’re excited to help your team replace that hardware, but we also know that those legacy network firewalls were used to keep private data and applications safe in a castle-and-moat model. You can now use Cloudflare for Teams to upgrade to a Zero Trust networking model instead, with a private network running on Cloudflare and rules based on identity, not IP address.
To learn how, keep reading or watch the demo below.
Private Continue reading
The Internet Society and the Asia Pacific Internet Exchange Association (APIX) commit to work together to support communities that build the Internet and improve digital infrastructure in the region. At the peak of the COVID-19 pandemic, average international Internet traffic increased by 48%, putting an unprecedented strain on the Internet. The trend was the same […]
The post Supporting IXPs in Asia-Pacific: New Partnership with the Asia Pacific Internet Exchange Association appeared first on Internet Society.
WebP and AVIF are two image formats for the web. They aim to produce smaller files than JPEG and PNG. They both support lossy and lossless compression, as well as alpha transparency. WebP was developed by Google and is a derivative of the VP8 video format.1 It is supported on most browsers. AVIF is using the newer AV1 video format to achieve better results. It is supported by Chromium-based browsers and has experimental support for Firefox.2
Your browser supports WebP and AVIF image formats. Your browser supports none of these image formats. Your browser only supports the WebP image format. Your browser only supports the AVIF image format.
Without JavaScript, I can’t tell what your browser supports.
For this blog, I am using the following shell snippets to convert and optimize JPEG and PNG images. Skip to the next section if you are only interested in the Nginx setup.
JPEG images are converted to WebP using cwebp.
find media/images -type f -name '*.jpg' -print0 \ | xargs -0n1 -P$(nproc) -i \ cwebp -q 84 -af '{}' -o '{}'.webp
They are converted to AVIF using avifenc Continue reading
Short video on differences.
Last week we explored the basics of unnumbered IPv4 Ethernet interfaces, and how you could use them to save IPv4 address space in routed access networks. I also mentioned that you could simplify the head-end router configuration if you’re using DHCP instead of per-host static routes.
Obviously you’d need a smart DHCP server/relay implementation to make this work. Simplistic local DHCP server would allocate an IP address to a client requesting one, send a response and move on. Likewise, a DHCP relay would forward a DHCP request to a remote DHCP server (adding enough information to allow the DHCP server to select the desired DHCP pool) and forward its response to the client.
Last week we explored the basics of unnumbered IPv4 Ethernet interfaces, and how you could use them to save IPv4 address space in routed access networks. I also mentioned that you could simplify the head-end router configuration if you’re using DHCP instead of per-host static routes.
Obviously you’d need a smart DHCP server/relay implementation to make this work. Simplistic local DHCP server would allocate an IP address to a client requesting one, send a response and move on. Likewise, a DHCP relay would forward a DHCP request to a remote DHCP server (adding enough information to allow the DHCP server to select the desired DHCP pool) and forward its response to the client.