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Category Archives for "Networking"

The case for declarative network automation

Nemertes recently looked at how organizations with larger networks—specifically Cisco-heavy networks—implemented network automation. The results were a bit surprising in that less than 20% use Cisco’s flagship DNA Center network controller and management dashboard that can automate provisioning and change management.On the other hand more than 40% roll their own automation solution using various forms of imperative scripting or programming (mostly Python), and about 50% engage a different model instead of or in addition: declarative automation.To read this article in full, please click here

Using strace and ltrace to help with troubleshooting on Linux

Both strace and ltrace are powerful command-line tools for debugging and troubleshooting programs on Linux: Strace captures and records all system calls made by a process as well as the signals received, while ltrace does the same for library calls.If a program acts differently than you expect, you can use these tools to see “behind the curtain” and maybe get some clues as to what is going on. [ Get regularly scheduled insights by signing up for Network World newsletters. ] Be forewarned, though. When you use either of these commands, you will end up with a lot of output to look through. Still, that can tell you quite a bit about how a process is working and sometimes give you important insights.To read this article in full, please click here

Using strace and ltrace to help with troubleshooting on Linux

Both strace and ltrace are powerful command-line tools for debugging and troubleshooting programs on Linux: Strace captures and records all system calls made by a process as well as the signals received, while ltrace does the same for library calls.If a program acts differently than you expect, you can use these tools to see “behind the curtain” and maybe get some clues as to what is going on. [ Get regularly scheduled insights by signing up for Network World newsletters. ] Be forewarned, though. When you use either of these commands, you will end up with a lot of output to look through. Still, that can tell you quite a bit about how a process is working and sometimes give you important insights.To read this article in full, please click here

Cisco offers technology to predict enterprise-network problems

Cisco says it is working on a service to let enterprises proactively avert network problems and increase performance.The company says it has built a predictive analytics engine it will offer via software-as-a-service (SaaS) to help network operators quickly and accurately predict network issues and prevent problems before they happen. [ Get regularly scheduled insights by signing up for Network World newsletters. ] “The future of connectivity will rely on self-healing networks that can learn, predict and plan,” Chuck Robbins, Cisco chair and CEO said in a statement. “Our research for predictive networks has been tested and developed with customers, and early adopters [including Phillips 66, Schneider Electric and the Adecco Group] are seeing major benefits saving them time and money.”To read this article in full, please click here

Cisco offers technology to predict enterprise network problems

Cisco says it is working on a service to let enterprises proactively avert network problems and increase performance.The company says it has built a predictive analytics engine it will offer via software-as-a-service (SaaS) to help network operators quickly and accurately predict network issues and prevent problems before they happen. [ Get regularly scheduled insights by signing up for Network World newsletters. ] “The future of connectivity will rely on self-healing networks that can learn, predict and plan,” Chuck Robbins, Cisco chair and CEO said in a statement. “Our research for predictive networks has been tested and developed with customers, and early adopters [including Phillips 66, Schneider Electric and the Adecco Group] are seeing major benefits saving them time and money.”To read this article in full, please click here

Cisco preps technology to predict enterprise-network problems

Cisco says it is working on a service to let enterprises proactively avert network problems and increase performance.The company says it has built a predictive analytics engine it will offer via software-as-a-service (SaaS) to help network operators quickly and accurately predict network issues and prevent problems before they happen. [ Get regularly scheduled insights by signing up for Network World newsletters. ] “The future of connectivity will rely on self-healing networks that can learn, predict and plan,” Chuck Robbins, Cisco chair and CEO said in a statement. “Our research for predictive networks has been tested and developed with customers, and early adopters [including Phillips 66, Schneider Electric and the Adecco Group] are seeing major benefits saving them time and money.”To read this article in full, please click here

Practical Python For Networking: 7.3 – Distribution Example – Video

This lesson wraps up the section on distributing packages with a full example. Course files are in a GitHub repository: https://github.com/ericchou1/pp_practical_lessons_1_route_alerts Eric Chou is a network engineer with 20 years of experience, including managing networks at Amazon AWS and Microsoft Azure. He’s the founder of Network Automation Nerds and has written the books Mastering Python […]

The post Practical Python For Networking: 7.3 – Distribution Example – Video appeared first on Packet Pushers.

Dell bolsters storage lineup with 500 software upgrades

Dell will implement an array of new features for its storage platforms aimed at “cloud-ifying” its systems and improving support for hybrid environments, the company announced this week at its annual Dell Technologies World event in Las Vegas.Dell touted more than 500 software advancements in three key platforms: PowerStore storage appliances, PowerMax mission-critical storage and PowerFlex software-defined storage framework. The main updates for PowerStore are improved support for native file replication and third-party file monitoring and ransomware protection, along with improved networking speeds, NVMe support, and deeper integration for VMware vSphere Virtual Volumes (vVols) virtualized SAN/NAS arrays and disaster recovery.To read this article in full, please click here

Dell bolsters storage lineup with 500 software upgrades

Dell will implement an array of new features for its storage platforms aimed at “cloud-ifying” its systems and improving support for hybrid environments, the company announced this week at its annual Dell Technologies World event in Las Vegas.Dell touted more than 500 software advancements in three key platforms: PowerStore storage appliances, PowerMax mission-critical storage and PowerFlex software-defined storage framework. The main updates for PowerStore are improved support for native file replication and third-party file monitoring and ransomware protection, along with improved networking speeds, NVMe support, and deeper integration for VMware vSphere Virtual Volumes (vVols) virtualized SAN/NAS arrays and disaster recovery.To read this article in full, please click here

Cisco urges software update to thwart counterfeit switches

Cisco is encouraging users of its popular Catalyst 2960X/2960XR switches to upgrade their IOS operating systems in an effort to combat counterfeiting.Because of the pervasiveness of these switches on the gray market, it’s imperative that customers enable the latest software release – IOS release 15.2(7)E4 or later – to validate the authenticity, security, and performance of their Catalyst 2960X/2960XR 24/48 port Gigabit Ethernet switches, Cisco stated in a notice to customers. To read this article in full, please click here

Cisco urges software update to thwart counterfeit switches

Cisco is encouraging users of its popular Catalyst 2960X/2960XR switches to upgrade their IOS operating systems in an effort to combat counterfeiting.Because of the pervasiveness of these switches on the gray market, it’s imperative that customers enable the latest software release – IOS release 15.2(7)E4 or later – to validate the authenticity, security, and performance of their Catalyst 2960X/2960XR 24/48 port Gigabit Ethernet switches, Cisco stated in a notice to customers. To read this article in full, please click here

Practical Python For Networking: 7.2 Distribution Preparation – Video

This lessons walks through preparing a package for distribution. Course files are in a GitHub repository: https://github.com/ericchou1/pp_practical_lessons_1_route_alerts Eric Chou is a network engineer with 20 years of experience, including managing networks at Amazon AWS and Microsoft Azure. He’s the founder of Network Automation Nerds and has written the books Mastering Python Networking and Distributed Denial […]

The post Practical Python For Networking: 7.2 Distribution Preparation – Video appeared first on Packet Pushers.

The state of cloud-native security 2022 – Tigera’s new market report

We are excited to announce the publication of our first State of Cloud-Native Security market report! The report compiles survey results from more than 300 security and IT professionals worldwide (all of whom have direct container responsibilities), and explores organizations’ needs and challenges when it comes to containers and cloud-native applications, specifically in the areas of security, observability, and compliance.

Report highlights

Our survey results showcase the rise in cloud-native development, while identifying barriers and areas where organizations need support on their cloud-native journey. Some of the report’s key findings include:

  • Cloud-native applications gain momentum but present security, compliance, and observability issues.
    • While our survey found that 75% of companies are focusing development on cloud-native applications, the increased development (and deployment) also creates the need for more advanced observability and security capabilities.
  • Containers require security solutions for runtime, access, and networking.
    • 98% of organizations need container security, with runtime security topping the list.
  • Cloud-native and container compliance requirements are driving delays and challenges.
    • 95% of organizations report they have compliance requirements for cloud-native applications, with 84% stating that meeting these compliance requirements is challenging.

Why read the report?

The report gives organizations a chance to benchmark themselves against the findings, Continue reading

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