How not to get caught in law-enforcement geofence requests

I thought I'd write up a response to this question from well-known 4th Amendment and CFAA lawyer Orin Kerr:

First, let me address the second part of his tweet, whether I'm technically qualified to answer this. I'm not sure, I have only 80% confidence that I am. Hence, I'm writing this answer as blogpost hoping people will correct me if I'm wrong.

There is a simple answer and it's this: just disable "Location" tracking in the settings on the phone. Both iPhone and Android have a one-click button to tap that disables everything.

The trick is knowing which thing Continue reading

Bringing the Power of SDN Automation to BGP EVPN Overlays

Some customers have asked whether Pluribus can create an overlay using BGP EVPN throughout the fabric, like other vendors do, and not just at the edge. The answer is “yes” we absolutely can do that, but unlike other vendors, we can apply the power of SDN automation to make it simpler.

The post Bringing the Power of SDN Automation to BGP EVPN Overlays appeared first on Pluribus Networks.

IBM ships high-density tape drives based on lastest spec

IBM announced the general availability of the industry’s first magnetic tapes and drives based on the LTO-9 Ultrium specification for massive data capacity and resilience.The Linear Tape-Open (LTO) 9 spec features a 50% improvement in capacity over LTO-8, which translates to 18TB native capacity, or 45TB after data is compressed. Fujifilm and Sony announced media last month, but IBM is the first with a drive.To read this article in full, please click here

IBM ships high-density tape drives based on lastest spec

IBM announced the general availability of the industry’s first magnetic tapes and drives based on the LTO-9 Ultrium specification for massive data capacity and resilience.The Linear Tape-Open (LTO) 9 spec features a 50% improvement in capacity over LTO-8, which translates to 18TB native capacity, or 45TB after data is compressed. Fujifilm and Sony announced media last month, but IBM is the first with a drive.To read this article in full, please click here

Russ’ Rules of Network Design

We have the twelve truths of networking, and possibly Akin’s Laws, but is there a set of rules for network design? I couldn’t find one, so I decided to create one, containing 18 laws I’ve listed below.

Russ’ Rules of Network Design

  1. If you haven’t found the tradeoffs, you haven’t looked hard enough.
  2. Design is an iterative process. You probably need one more iteration than you’ve done to get it right.
  3. A design isn’t finished when everything needed is added, it’s finished when everything possible is taken away.
  4. Good design isn’t making it work, it’s making it fail gracefully.
  5. Effective, elegant, efficient. All other orders are incorrect.
  6. Don’t fix blame; fix problems.
  7. Local and global optimization are mutually exclusive.
  8. Reducing state always reduces optimization someplace.
  9. Reducing state always creates interaction surfaces; shallow and narrow interaction surfaces are better than deep and broad ones.
  10. The easiest place to improve or screw up a design is at the interaction surfaces.
  11. The optimum is almost always in the middle someplace; eschew extremes.
  12. Sometimes its just better to start over.
  13. There are a handful of right solutions; there is an infinite array of wrong ones.
  14. You are not immensely smarter than anyone else in Continue reading

Troubleshooting Webinar this Friday

I’m teaching my troubleshooting webinar this Friday. I’ve revamped the slides entirely, so this will likely be a big change for anyone who’s attended previous versions of this. Three hours, 109 slides, and interaction through the chat window … all to develop some really good skills in how to troubleshoot. For those who are curious, I was taught formal troubleshooting skills in my early life in electronics, learning my lessons on ILS, RADAR, and radio systems of various kinds. This webinar is my adaptation of those skills for network engineers.

You can register here.

What’s your Digital Dilemma?

There are many ways to describe the need for IT organizations to do things better. There are multiple opportunities to get it wrong. Certainly, compromising today in the name of tomorrow is what many IT leaders now call the digital dilemma. Derek Britton of Micro Focus offers the vendor perspective.

Managing and monitoring swap space on Linux

Most of us don't often think about swap space unless we run into a problem on our systems that suggests we don't have enough. Even so, viewing and gauging the adequacy of swap space on a system is not overly complicated, and knowing what's normal for your system can help you spot when something is wrong. So let's check out some commands that can help you look into your swap space. But first, let's review some fundamentals.What swap space is and how it's used Swap space is disk space that acts something like an extension of memory. It gets used when the system's physical memory (RAM) is full and the system needs more memory resources. It's called "swap" because the system will move some inactive pages in memory into the swap space so that it can accommodate more data in RAM. In other words, it provides a way to free up RAM on a busy system.To read this article in full, please click here

Managing and monitoring swap space on Linux

Most of us don't often think about swap space unless we run into a problem on our systems that suggests we don't have enough. Even so, viewing and gauging the adequacy of swap space on a system is not overly complicated, and knowing what's normal for your system can help you spot when something is wrong. So let's check out some commands that can help you look into your swap space. But first, let's review some fundamentals.What swap space is and how it's used Swap space is disk space that acts something like an extension of memory. It gets used when the system's physical memory (RAM) is full and the system needs more memory resources. It's called "swap" because the system will move some inactive pages in memory into the swap space so that it can accommodate more data in RAM. In other words, it provides a way to free up RAM on a busy system.To read this article in full, please click here

Stateful Switchover (SSO) 101

Stateful Switchover (SSO) is another seemingly awesome technology that can help you implement high availability when facing a broken non-redundant network design. Here’s how it’s supposed to work:

  • A network device runs two copies of the control plane (primary and backup);
  • Primary control plane continuously synchronizes its state with the backup control plane;
  • When the primary control plane crashes, the backup control plane already has all the required state and is ready to take over in moments.

Delighted? You might be disappointed once you start digging into the details.

Read more …

Stateful Switchover (SSO) 101

Stateful Switchover (SSO) is another seemingly awesome technology that can help you implement high availability when facing a broken non-redundant network design. Here’s how it’s supposed to work:

  • A network device runs two copies of the control plane (primary and backup);
  • Primary control plane continuously synchronizes its state with the backup control plane;
  • When the primary control plane crashes, the backup control plane already has all the required state and is ready to take over in moments.

Delighted? You might be disappointed once you start digging into the details.

Read more …

Gartner: IT skills shortage hobbles cloud, edge, automation growth

Gartner says the current paucity of skilled IT workers is foiling the adoption of cloud, edge computing, and automation technologies.In its "2021-2023 Emerging Technology Roadmap" based on surveying 437 global firms, Gartner found that IT executives see the talent shortage as the most significant barrier to deploying emerging technologies, including compute infrastructure and platform services, network security, digital workplace, IT automation, and storage.To read this article in full, please click here

Gartner: IT skills shortage hobbles cloud, edge, automation growth

Gartner says the current paucity of skilled IT workers is foiling the adoption of cloud, edge computing, and automation technologies.In its "2021-2023 Emerging Technology Roadmap" based on surveying 437 global firms, Gartner found that IT executives see the talent shortage as the most significant barrier to deploying emerging technologies, including compute infrastructure and platform services, network security, digital workplace, IT automation, and storage.To read this article in full, please click here

Network Break 350: Intel Pledges Billions For European Chip Factories; Facebook Reveals New Data Center Design

This week's Network Break podcast wonders what Intel wants in return for a multi-year, multi-billion pledge to build European chip factories, marvels at Facebook's newly revealed data center designs, analyzes Comcast's Masergy acquisition, and more.

The post Network Break 350: Intel Pledges Billions For European Chip Factories; Facebook Reveals New Data Center Design appeared first on Packet Pushers.

What’s new: Automating ServiceNow with Ansible Automation Platform

It has been almost half a year since the XLAB Steampunk and Red Hat Ansible Automation Platform teams developed the first version of the Red Hat Ansible Certified Content Collection for ServiceNow IT Service Management (ITSM). You may also want to read our ServiceNow introduction if you are not familiar with this already.  So, let’s take a look at what is new since the last release.

We will skip most of the technical details in this post because, let us face it, talking about interactions between API pagination and filtering is not something many people enjoy. Instead, we will focus on the new things users can do using the current 1.2.0 version of this collection.

 

Attachment management

ServiceNow records (incidents, problems, change requests, etc.) may contain attachments, but the first version of the ServiceNow Collection did not expose this capability to Ansible Automation Platform users. We changed this in version 1.2.0 when we added the attachments parameter to all non-info modules.

Ansible users can now upload error logs and other artifacts when creating new incidents and other ServiceNow records. They can also add them later to existing ServiceNow records. For example, users might Continue reading

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