What Is Zero Trust Architecture?

Zero Trust Architecture (ZTA) builds on the foundational principles of zero trust security as defined by the National Institute of Standards and Technology (NIST) in publication Ansible, Puppet, and Crowdstrike offer products that cover the entire spectrum of detecting and protecting endpoints within a corporate network. This would include everything from antivirus and antimalware to abnormal network activity monitoring. Microsoft, Trend Micro, and SentinelOne offer similar capabilities and made Gartner’s upper quadrant in their 2021 Endpoint Protection report. Wrap up Zero Trust Architecture The real answer to the question of what is zero trust architecture depends on your most important corporate assets. Any network design should also include consideration of the humans with access to those critical assets. Trust but verify applies to corporate employees as well as geopolitical relationships. Choosing the right vendors and partners to meet your specific objectives will help you implement a solid Zero Trust Architecture. Once implemented it comes down to diligence and persistence. New threats pop up regularly and must be met with an adaptive security posture. Those who don’t adapt and change will be doomed to failure. The post What Is Zero Trust Architecture? appeared first on The New Stack.

Redefining NaaS: It’s the internet

Your network vendor has probably already told you that network as a service or NaaS would improve your network and bottom line. They’ve probably told you that they offer a NaaS strategy. The first statement is true, and the second is fast becoming irrelevant, because the fact is that you have a better, vendor-independent, NaaS option already.  It’s called the internet.The definition for NaaS that’s recently taken hold is financial more than technical—NaaS is a strategy for expensing network technology rather than building networks from capital purchases. Some vendor NaaS is little more than the equivalent of an auto lease, which lets companies expense cars rather than make capital purchases. Others could add in management services or usage pricing. Is this really NaaS?  Uber is driving-as-a-service, not auto leasing. If we want network-as-a-service, we have to look at something that’s really a service.To read this article in full, please click here

Video: IPv6 RA Guard and Extension Headers

Last week’s IPv6 security video introduced the rogue IPv6 RA challenges and the usual countermeasure – RA guard. Unfortunately, IPv6 tends to be a wonderfully extensible protocol, creating all sorts of opportunities for nefarious actors and security researchers.

For years, the networking vendors were furiously trying to plug the holes created by the academically minded IPv6 designers in love with fragmented extension headers. In the meantime, security researches had absolutely no problem finding yet another weird combination of IPv6 headers that would bypass any IPv6 RA guard implementation until IETF gave up and admitted one cannot have “infinitely extensible” and “secure” in the same sentence.

For more details watch the video by Christopher Werny describing how one could use IPv6 extension headers to circumvent IPv6 RA guard

Watch the video
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Video: IPv6 RA Guard and Extension Headers

Last week’s IPv6 security video introduced the rogue IPv6 RA challenges and the usual countermeasure – RA guard. Unfortunately, IPv6 tends to be a wonderfully extensible protocol, creating all sorts of opportunities for nefarious actors and security researchers.

For years, the networking vendors were furiously trying to plug the holes created by the academically minded IPv6 designers in love with fragmented extension headers. In the meantime, security researches had absolutely no problem finding yet another weird combination of IPv6 headers that would bypass any IPv6 RA guard implementation until IETF gave up and admitted one cannot have “infinitely extensible” and “secure” in the same sentence.

For more details watch the video by Christopher Werny describing how one could use IPv6 extension headers to circumvent IPv6 RA guard

Watch the video
You need Free ipSpace.net Subscription to watch the video.

Cisco puts app-performance tools in the cloud

Cisco is taking aim at better controlling the performance and development of core applications with a new AppDynamics cloud service and open-source development tools.AppDynamics Cloud is a cloud-native service designed to let enterprises observe applications and take action to remediate performance problems.   [ Get regularly scheduled insights by signing up for Network World newsletters. ] Available by the end of June, the service is built to observe distributed and dynamic cloud-native applications at scale, wrote chief marketing officer of Cisco AppDynamics, Eric Schou in a blog about the new offering.To read this article in full, please click here

Cisco puts app-performance tools in the cloud

Cisco is taking aim at better controlling the performance and development of core applications with a new AppDynamics cloud service and open-source development tools.AppDynamics Cloud is a cloud-native service designed to let enterprises observe applications and take action to remediate performance problems.   [ Get regularly scheduled insights by signing up for Network World newsletters. ] Available by the end of June, the service is built to observe distributed and dynamic cloud-native applications at scale, wrote chief marketing officer of Cisco AppDynamics, Eric Schou in a blog about the new offering.To read this article in full, please click here

Cisco puts app-performance tools in the cloud

Cisco is taking aim at better controlling the performance and development of core applications with a new AppDynamics cloud service and open-source development tools.AppDynamics Cloud is a cloud-native service designed to let enterprises observe applications and take action to remediate performance problems.   [ Get regularly scheduled insights by signing up for Network World newsletters. ] Available by the end of June, the service is built to observe distributed and dynamic cloud-native applications at scale, wrote chief marketing officer of Cisco AppDynamics, Eric Schou in a blog about the new offering.To read this article in full, please click here

Using OpenSSL With Ed Harmoush 5/6 Inspecting Certificates: Invalid Certificates – Video

ED, HIS TLS COURSE, AND THE FREE OPENSSL CHEATSHEET Twitter @ed_pracnet https://practicalnetworking.net Practical TLS course: https://pracnet.net/tls OpenSSL Cheatsheet: https://pracnet.net/openssl FILES FOR THE CERT/KEY MATCHING EXERCISE: ZIP VERSION: packetpushers-pracnet-openssl.zip https://ln5.sync.com/dl/1f1f63d90/kqztwkp9-hkcz3yvq-tuzx79ke-aewxgaip TAR.GZ VERSION: packetpushers-pracnet-openssl.tar.gz https://ln5.sync.com/dl/0791b8d50/q973jpyb-qrmz3cpd-xeiar9zn-qu99gi5w FOR MORE INFO Hashing, Hashing Algorithms, and Collisions – Cryptography Symmetric Encryption vs Asymmetric Encryption Public & Private Keys – Signatures & […]

The post Using OpenSSL With Ed Harmoush 5/6 Inspecting Certificates: Invalid Certificates – Video appeared first on Packet Pushers.

High-Bandwidth Memory (HBM) delivers impressive performance gains

IT vendors typically race to deliver incremental improvements to existing product lines, but occasionally a truly disruptive technology comes along.  One of those disruptive technologies, which is beginning to find its way into enterprise data centers, is High-Bandwidth Memory (HBM).HBM is significantly faster than incumbent memory chip technologies, uses less power and takes up less space. It is becoming particularly popular for resource-intensive applications such as high-performance computing (HPC) and artificial intelligence (AI).To read this article in full, please click here

High-Bandwidth Memory (HBM) delivers impressive performance gains

IT vendors typically race to deliver incremental improvements to existing product lines, but occasionally a truly disruptive technology comes along.  One of those disruptive technologies, which is beginning to find its way into enterprise data centers, is High-Bandwidth Memory (HBM).HBM is significantly faster than incumbent memory chip technologies, uses less power and takes up less space. It is becoming particularly popular for resource-intensive applications such as high-performance computing (HPC) and artificial intelligence (AI).To read this article in full, please click here

MLAG Deep Dive: Layer-2 Flooding

In the previous blog post of the MLAG Technology Deep Dive series, we explored the intricacies of layer-2 unicast forwarding. Now let’s focus on layer-2 BUM1 flooding functionality of an MLAG system.

Our network topology will have two switches and five hosts, some connected to a single switch. That’s not a good idea in an MLAG environment, but even if you have a picture-perfect design with everything redundantly connected, you will have to deal with it after a single link failure.

Read more …

MLAG Deep Dive: Layer-2 Flooding

In the previous blog post of the MLAG Technology Deep Dive series, we explored the intricacies of layer-2 unicast forwarding. Now let’s focus on layer-2 BUM1 flooding functionality of an MLAG system.

Our network topology will have two switches and five hosts, some connected to a single switch. That’s not a good idea in an MLAG environment, but even if you have a picture-perfect design with everything redundantly connected, you will have to deal with it after a single link failure.

Read more …

Who Will Build Europe’s First Exascale Supercomputer – And With What, And Why?

Exascale supercomputing is just as important to Europe as it is to the United States and China, but each of these geopolitical regions on Earth has its own way of developing architectures, funding their development and production, and figuring out where the best HPC centers are to host such machines to maximize their effectiveness. …

Who Will Build Europe’s First Exascale Supercomputer – And With What, And Why? was written by Timothy Prickett Morgan at The Next Platform.

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