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Category Archives for "Networking"

Data center colocation provider Cyxtera files for bankruptcy

Colocation provider Cyxtera Technologies has filed for Chapter 11 bankruptcy after spending the last few months trying to find a buyer or reduce its debt load. The company will now attempt to restructure through bankruptcy or perhaps a suitor will come along to buy out the company.Meanwhile, the company says it will be business as usual for its customers, but with the reorganization that comes with Chapter 11, it’s hard to say whether that will last, according to Bill Kleyman, an independent consultant to data-center companies.To read this article in full, please click here

When Making Bets on SASE, Don’t Count on Native SD-WAN Monitoring Tools for Help

The following post is by Jeremy Rossbach, Chief Technical Evangelist at Broadcom. We thank Broadcom for being a sponsor. I’ve been preaching the same thing for years: To overcome the challenges of modern network complexity and successfully transform your networks, you need modern network monitoring data. Monitor the user experience and the health of every […]

The post When Making Bets on SASE, Don’t Count on Native SD-WAN Monitoring Tools for Help appeared first on Packet Pushers.

Case study: Calico enables zero-trust security and policy automation at scale in a multi-cluster environment for Box

Box is a content cloud that helps organizations securely manage their entire content lifecycle from anywhere in the world, powering over 67% of Fortune 500 businesses. As a cloud-first SaaS, the company provides customers with an all-in-one content solution within a highly secure infrastructure, where organizations can work on any content, from projects and contracts to Federal Risk and Authorization Management Program (FedRAMP)-related content.

Box has two types of operations: cloud-managed Kubernetes clusters in hybrid, multi-cloud, and public cloud environments, and self-managed Kubernetes clusters in co-located data centers. The company runs multiple clusters with sizes of 1,000 nodes and larger. As one of the early adopters of Kubernetes, Box began using Kubernetes much before Google Kubernetes Engine (GKE) or Amazon’s Elastic Kubernetes Services (EKS) was born, and has been on the leading edge of innovation for Kubernetes in areas such as security, observability, and automation.

In collaboration with Tigera, Box shares how Calico helped the company achieve zero-trust security and policy automation at scale in a multi-cluster environment.

ICYMI: Watch this recording from the 2022 CalicoCon Cloud Native Security Summit, where Tapas Kumar Mohapatra of Box shares how Box moved into automated dependency mapping and policy generation with API Continue reading

Migration Coordinator: Approaches and Modes

Migration Coordinator is a fully supported free tool that is built into NSX Data Center to help migrate from NSX for vSphere to NSX (aka NSX-T). Migration Coordinator was first introduced in NSX-T 2.4 with a couple of modes to enable migrations. Through customer conversations over the years, we’ve worked to expand what can be done with Migration Coordinator. Today, Migration Coordinator supports over 10 different ways to migrate from NSX for vSphere to NSX.

In this blog series, we will look at the available approaches and the prep work involved with each of those approaches.  This blog series should help choose, from multiple different angles, the right mode to choose for migrating from NSX for vSphere to NSX.

  • 3 Standard Migration Modes
  • 3 Advanced Migration Modes
  • 3 More Modes Available Under User Defined Topology
  • Lastly, 2 more Modes Dedicated to Cross-VC to Federation and available on NSX Global Manager UI

Some of these modes take a cookie-cutter approach and require very little prep work to migrate while others allow you to customize the migration to suit their needs. In this blog, we will take a high level look at these modes.

Migration Coordinator Approaches

At a high Continue reading

Data center colocation provider Cyxtera files for bankruptcy

Colocation provider Cyxtera Technologies has filed for Chapter 11 bankruptcy after spending the last few months trying to find a buyer or reduce its debt load. The company will now attempt to restructure through bankruptcy or perhaps a suitor will come along to buy out the company.Meanwhile, the company says it will be business as usual for its customers, but with the reorganization that comes with Chapter 11, it’s hard to say whether that will last, according to Bill Kleyman, an independent consultant to data-center companies.To read this article in full, please click here

Cisco extends observability platform with formal launch at Cisco Live 2023

Too many management tools that don’t integrate well and a lack of visibility into third-party systems are among the problems enterprise IT teams face when they try to manage multivendor, distributed environments.Cisco’s Full-Stack Observably Platform is designed to collect and correlate data from application, networking, infrastructure, security, and cloud domains to provide a clear view of what’s going on across the enterprise and make it easier for enterprises to spot anomalies, preempt and address performance problems, and improve threat mitigation.To read this article in full, please click here

Cloudflare Area 1 earns SOC 2 report

Cloudflare Area 1 earns SOC 2 report
Cloudflare Area 1 earns SOC 2 report

Cloudflare Area 1 is a cloud-native email security service that identifies and blocks attacks before they hit user inboxes, enabling more effective protection against spear phishing, Business Email Compromise (BEC), and other advanced threats. Cloudflare Area 1 is part of the Cloudflare Zero Trust platform and an essential component of a modern security and compliance strategy, helping organizations to reduce their attackers surface, detect and respond to threats faster, and improve compliance with industry regulations and security standards.

This announcement is another step in our commitment to remaining strong in our security posture.

Our SOC 2 Journey

Many customers want assurance that the sensitive information they send to us can be kept safe. One of the best ways to provide this assurance is a SOC 2 Type II report. We decided to obtain the report as it is the best way for us to demonstrate the controls we have in place to keep Cloudflare Area 1 and its infrastructure secure and available.  

Cloudflare Area 1’s SOC 2 Type II report covers a 3 month period from 1 January 2023 to 31 March 2023. Our auditors assessed the operating effectiveness of the 70 controls we’ve implemented to meet the Continue reading

Cisco spotlights generative AI in security, collaboration

Looking to harness a decade of AI/ML development Cisco this week previewed generative AI-based features it will soon bring to its Security Cloud service and Webex collaboration offerings.Cisco said it was looking meld the network and security intelligence it has amassed over the years with the large language models (LLMs) of generative AI to simplify enterprise operations and address threats with practical, effective techniques.  The first fruits of this effort will be directed at the Cisco Security Cloud, the overarching, integrated-security platform that includes software such as Duo access control and Umbrella security as well as firewalls and  Talos threat intelligence access all delivered via the cloud.To read this article in full, please click here

Cisco spotlights generative AI in security, collaboration

Looking to harness a decade of AI/ML development Cisco this week previewed generative AI-based features it will soon bring to its Security Cloud service and Webex collaboration offerings.Cisco said it was looking meld the network and security intelligence it has amassed over the years with the large language models (LLMs) of generative AI to simplify enterprise operations and address threats with practical, effective techniques.  The first fruits of this effort will be directed at the Cisco Security Cloud, the overarching, integrated-security platform that includes software such as Duo access control and Umbrella security as well as firewalls and  Talos threat intelligence access all delivered via the cloud.To read this article in full, please click here

DNS observability and troubleshooting for Kubernetes and containers with Calico

In Kubernetes, the Domain Name System (DNS) plays a crucial role in enabling service discovery for pods to locate and communicate with other services within the cluster. This function is essential for managing the dynamic nature of Kubernetes environments and ensuring that applications can operate seamlessly. For organizations migrating their workloads to Kubernetes, it’s also important to establish connectivity with services outside the cluster. To accomplish this, DNS is also used to resolve external service names to their corresponding IP addresses. The DNS functionality in Kubernetes is typically implemented using a set of core-dns pods that are exposed as a service called kube-dns. The DNS resolvers for workload pods are automatically configured to forward queries to the kube-dns service.

The output below shows the implementation of the kube-dns services in a Kubernetes cluster.

kubectl get service kube-dns -n kube-system

NAME       TYPE        CLUSTER-IP     EXTERNAL-IP   PORT(S)
kube-dns   ClusterIP   10.0.0.10      <none>        53/UDP,53/TCP

The core-dns pods have to rely on external DNS servers to perform domain name resolution for services outside the cluster. By default, the pods are configured to forward DNS queries to the DNS server configured in the underlying host in the /etc/resolv.conf file. The output below displays Continue reading

Day Two Cloud 198: Modern Cloud Design Themes From CFD 17

Today's Day Two Cloud explores some design themes that emerged from the Cloud Field Day event. These themes include platform engineering, data protection and recovery, and how to deal with the fact that old technology never dies. Guest Michael Levan joins Ned Bellavance and Ethan Banks to discuss these themes and their implications for cloud application builders and operators.

The post Day Two Cloud 198: Modern Cloud Design Themes From CFD 17 appeared first on Packet Pushers.

Day Two Cloud 198: Modern Cloud Design Themes From CFD 17

Today's Day Two Cloud explores some design themes that emerged from the Cloud Field Day event. These themes include platform engineering, data protection and recovery, and how to deal with the fact that old technology never dies. Guest Michael Levan joins Ned Bellavance and Ethan Banks to discuss these themes and their implications for cloud application builders and operators.
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