Automated namespace isolation with Calico
Calico has recently introduced a powerful new policy recommendation engine that enables DevOps, SREs, and Kubernetes operators to automatically generate Calico policies to implement namespace isolation and improve the security posture of their clusters.
This new recommendation engine is unique for three reasons:
- Calico’s policy recommendations work continuously in the background over a user-configurable time period. This ensures that less frequent traffic flows are also accounted for in recommended policies.
- Policy recommendations leverage Calico’s policy tiers. Tiers enforce an order of precedence on how Calico policies are evaluated and enforced. The recommended policies are placed in their own tier and Calico ensures each generated rule does not conflict with other policies you have implemented.
- Recommended policies are
StagedNetworkPolicies, allowing admins and operators to audit the behavior of these security policies before actively enforcing them.
In this blog, we’ll dive into each of these areas in more detail and provide an in-depth overview of how policy recommendations work and how it can improve the security posture of your cluster.
Before we get started, let’s quickly talk about namespace isolation and why it’s so important.
Why is namespace isolation important?
Namespaces are a foundational concept within Kubernetes. They help divide your Continue reading
Day Two Cloud 206: Making The Most Of Red Teaming With Gemma Moore
Red teams attack a customer's security systems. The idea of a red team, whether consultants or in-house, is to approach the target like an attacker would. A red team includes technical and human-based exploit and attempts to test defenses, probe for weaknesses, and identify vulnerable systems and processes. On today's episode we look at how to get the most out of a red team engagement--it's much more than just an attack and a report.
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Day Two Cloud 206: Making The Most Of Red Teaming With Gemma Moore
Red teams attack a customer's security systems. The idea of a red team, whether consultants or in-house, is to approach the target like an attacker would. A red team includes technical and human-based exploit and attempts to test defenses, probe for weaknesses, and identify vulnerable systems and processes. On today's episode we look at how to get the most out of a red team engagement--it's much more than just an attack and a report.Can We Trust Worldcoin’s Aspirin For AI Headaches?
This post originally appeared in the Packet Pushers’ Human Infrastructure newsletter, a weekly mailing of essays, links to technical blogs and IT news, and whatever else think is interesting. Subscribe for free here. Let’s say I invent an autonomous mobile robot. It can lift heavy items for you, wash your dishes, do your grocery shopping, […]
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Navigating the Connectivity Landscape: Best Practices for Securing Network Architecture
Connectivity is no longer just an enabler. Network architecture must now take security and resilience into account, as well.Navigating the Connectivity Landscape: Best Practices for Securing Network Architecture
Connectivity is no longer just an enabler. Network architecture must now take security and resilience into account, as well.Introducing per hostname TLS settings — security fit to your needs
One of the goals of Cloudflare is to give our customers the necessary knobs to enable security in a way that fits their needs. In the realm of SSL/TLS, we offer two key controls: setting the minimum TLS version, and restricting the list of supported cipher suites. Previously, these settings applied to the entire domain, resulting in an “all or nothing” effect. While having uniform settings across the entire domain is ideal for some users, it sometimes lacks the necessary granularity for those with diverse requirements across their subdomains.
It is for that reason that we’re excited to announce that as of today, customers will be able to set their TLS settings on a per-hostname basis.
The trade-off with using modern protocols
In an ideal world, every domain could be updated to use the most secure and modern protocols without any setbacks. Unfortunately, that's not the case. New standards and protocols require adoption in order to be effective. TLS 1.3 was standardized by the IETF in April 2018. It removed the vulnerable cryptographic algorithms that TLS 1.2 supported and provided a performance boost by requiring only one roundtrip, as opposed to two. For a user to benefit from Continue reading
Top Security Benefits of Improving Network Resiliency
In this archived panel discussion sponsored by Absolute Software, Steve Fallin connects with Ariel Robinson and Sherelle Moore to deliver an in-depth conversation detailing the 'Security Benefits of Improving Network Resiliency' during our 'Network Resilience Boot Camp' presented by Data Center Knowledge and Network Computing. This excerpt is from our live 'Network Resilience Boot Camp' virtual event moderated by Bonnie D. Graham on June 29, 2023.Heavy Wireless 008: 3D Printing For Wireless Engineers
3D printing is a popular activity among wireless network engineers. Given that they deal with invisible, intangible radio waves all day, maybe it's no surprise they'd enjoy making things they can touch and feel. On today's Heavy Wireless we talk about why the wireless community enjoys 3D printing, and how engineers can make and use printed objects on the job--and at home.
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Heavy Wireless 008: 3D Printing For Wireless Engineers
3D printing is a popular activity among wireless network engineers. Given that they deal with invisible, intangible radio waves all day, maybe it's no surprise they'd enjoy making things they can touch and feel. On today's Heavy Wireless we talk about why the wireless community enjoys 3D printing, and how engineers can make and use printed objects on the job--and at home.A Look At Broadcom’s Jericho3-AI Ethernet Fabric: Schedules, Credits, And Cells
Broadcom has come up with some interesting mechanisms to address the challenges of building an Ethernet-based fabric that supports AI workloads. These mechanisms, which include a scheduling framework, cells, and credits, are intended to minimize congestion, latency, and dropped frames or packets in the fabric. In this post I talk about what I learned at […]
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