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Measuring IPv6

This week I participated in a workshop on measurement of IPv6, organised by the US Naval Postgraduate School's Centre for Measurement and Analysis of Network Data (CMAND) and the folk at UC San Diego's Center for Applied Internet Data Analysis (CAIDA). Here's my notes from that workshop and a few opinions about IPv6 thrown is as well.

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Weekend Reads 061920

A few months ago, there was a lot of discussion that despite its claims, Zoom did not actually offer end-to-end encryption. They’re in the process of fixing that, which is good, but that raises a deeper question: why trust their code?—Steve Bellovin

Intel has announced new CPU-level capabilities designed to protect apps against threats that take advantage of buffer overflow and other common vulnerabilities related to memory security. —Jai Vijayan

The Department of Homeland Security and CISA ICS-CERT today issued a critical security advisory warning about over a dozen newly discovered vulnerabilities affecting billions of Internet-connected devices manufactured by many vendors across the globe. —Mohit Kumar

The cyber risks to our H2O infrastructure have yet to enter the public debate in the way that vulnerabilities in the electric grid have, despite proven attacks on this critical infrastructure. —Samantha F. Ravich

Amazon Web Services recently had to defend against a DDoS attack with a peak traffic volume of 2.3 Tbps, the largest ever recorded, ZDNet reports. —Jon Porte

Intel today announced its third-generation Xeon Scalable (meaning Gold and Platinum) processors, along with new generations of its Optane persistent memory (read: extremely low-latency, high-endurance SSD) and Stratix AI FPGA products. Continue reading

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Daily Roundup: AT&T Clarifies 5G Timeline

AT&T clarified its nationwide 5G timeline; Microsoft bought ADRM; and Verizon teased of its...

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Words Matter: Finally, Tech Looks at Removing Exclusionary Language

This month the tech industry’s lexicon is seeing a small but significant shift: Common technical phrases, most notably “Master/Slave” and “Whitelist/Blacklist” that have been red-flagged as offensive, or even racist, sometimes for decades, are getting updates. Android and GitHub Android, Splunk. Many orgs are also looking at replacing the concept of “whitelist” in both its documentation and in its APIs. Other companies and open source projects are following suit. This work is in part to take another semantic and moral stand that Black Lives Matter. And, at times, it is

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DevAsc – Python Divisors Challenge

As part of Nick Russo’s DevAsc study plan, he recommends doing a few Python challenges to check your existing knowledge of Python. One of these is the Divisors challenge. The goal of of this exercise is to take a number, such as 12, and then find all the divisors, that is the numbers that you can divide 12 with and have no remainder. This would 1, 2, 3, 4, 6, and finally 12 itself.

Now, solving this doesn’t take a lot of code. However, I decided that gold plating is allowed in my studies of code. That is, I would rather practice writing functions from the get go rather than just quickly moving from exercises.

To find divisors, we need a little basic math. We can use the Modulo operation to find the reminder of a division. For example, if you divide 5 by 2, the remainder is 1. We call this 5 modulo 2. Because there is a remainder of 1, this means that 2 is not a divisor for 5. If we however use 9 and 3 instead, with 9 modulo 3, the remainder is 0. This means that 3 is a divisor for 9. We then Continue reading

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Infinera, Windstream Claim 800G Milestone

Infinera says it has achieved 800 Gb/s line rates over a 730-kilometer from San Deigo to Pheonix on...

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Verizon Teases Forthcoming DSS Launch for Nationwide 5G

Verizon’s market position on 5G is heavily dependent on its ability to use dynamic spectrum...

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Remote work makes network visibility more critical than ever

What, exactly, is on your network? More to the point, where is your network? Ask yourself that now, then compare this to how your network looked a year ago. The answers have almost certainly changed, with most organizations seeing a rapid increase in the number of employees working remotely.

Hardened, policy-managed corporate networks are being exposed via remote VPNs to home network environments and, in some cases, employees’ home computers. This increases network complexity and may introduce new security and performance issues. To keep things running smoothly, having an in-depth view of the devices and events on your network is crucial.

Maintaining network performance with remote workers

When employees work from home, troubleshooting becomes more complex. Even if an employee is using a company-supplied computer, it is operating on an unmanaged network, and is exposed to everything else that happens to be on that network.

Today’s home networks often have multiple computers, smartphones, tablets, smart TVs, game consoles, and even Internet of Things devices like security camera doorbells. In addition to the security risks of putting a company computer on an insecure network, there are IT infrastructure problems that can arise when work-from-home becomes normalized.

A March 19, 2020, Network Continue reading

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Heavy Networking 524: Network Modeling With Open Source pyNTM

Today on Heavy Networking we cover network modeling using the Python Network Traffic Modeler, or pyNTM, an open-source tool. Creator Tim Fiola explains what network modeling is and how you can use this tool to help you make WAN design decisions and avoid costly mistakes.

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Heavy Networking 524: Network Modeling With Open Source pyNTM

Today on Heavy Networking we cover network modeling using the Python Network Traffic Modeler, or pyNTM, an open-source tool. Creator Tim Fiola explains what network modeling is and how you can use this tool to help you make WAN design decisions and avoid costly mistakes.

The post Heavy Networking 524: Network Modeling With Open Source pyNTM appeared first on Packet Pushers.

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FinTech Industry Report 2020-2025 – Trends, Developments and Growth Deviations Arising from the COVID-19 Pandemic

The Global Fintech Market is anticipated to grow at a CAGR of around 20% during the forecast period...

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Microsoft Buys ADRM for Azure Data Lake Boost

The acquisition also supports Microsoft’s continued investments into artificial intelligence and...

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The Conundrum of Virtual Conferences

Okay, the world is indeed crazy. We can’t hide from it or hope that it just blows over sooner or later. We’re dealing with it now and that means it’s impacting our work, our family lives, and even our sanity from time to time. One of the stalwart things that has been impacted by this is the summer conference schedule. We’ve had Aruba Atmosphere, Cisco Live, VMworld, and even Microsoft Ignite transition from being held in-person to a virtual format complete with shortened schedules and pre-recorded sessions. I’ve attended a couple of these so far for work and as an analyst, and I think I’ve figured it out.

If you come to a conference for content and sessions, you’ll love virtual events. If you come for any other reason, virtual isn’t going to work for you.

Let’s break this down because there’s a lot to unpack.

Information Ingestion

Conferences are first and foremost about disseminating information. Want to learn what new solutions and technologies have been launched? It’s probably going to be announced either right before or during the conference. Want to learn the ins-and-outs of this specific protocol? There’s probably a session on it or a chance to ask Continue reading

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Weekly Wrap: Hackers Cryptojack Microsoft Azure ML Clusters

SDxCentral Weekly Wrap for June 19, 2020: The Azure attack targets Kubeflow; Cisco SD-WAN update...

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Internet Behind Iron Curtain

A while ago Russ White invited me to be a guest on his fantastic History of Networking podcast, and we spent almost an hour talking about networking in 1980s and 1990s in what some people love to call “behind iron curtain” (we also fixed that misconception).

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T-Mobile Names Peter Osvaldik as new Chief Financial Officer; Announces Retirement of CFO Braxton Carter

T-Mobile has promoted Peter Osvaldik, current senior vice president, Finance and Chief Accounting...

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FT8 and IC9700

Setup

The basis for these instructions is this guide, but updated to reflect that the IC9700 is now directly supported by wsjtx and js8call.

Step one: connect a normal USB-A-B cable between the computer and the radio.

IC-9700 settings

• Menu
  • Set
    • Connectors
      • MOD Input
        • USB Mod Level: 30% (default 50%)
        • DATA MOD: USB (default: ACC)
        • DATA OFF MOD: Leave as default (MIC, ACC)
      • CI-V
        • CI-V Baud Rate = 19200 (default: Auto)
        • CI-V address = keep default A2h
        • CI-V USB Port = Link to [REMOTE] (default: Unlink from [REMOTE])
        • CI-V DATA Baud Rate = 19200 (default: OFF)
• When running, choose FIL1 (next to the mode in the top left)

wsjtx/js8call settings

• Radio
  • Rig: Icom IC-9700
  • Baud rate: 9700
  • Data bits: 8
  • Stop bits: 1
  • Handshake: XON/XOFF
  • PTT method: CAT
  • Mode: Data/Pkt (USB also works, but will use DATA OFF MOD as audio, so that needs to be USB)
  • Serial port: /dev/ttyUSB0 (on my Linux machine at least)
• Audio
  • Input: also_input.usb-Burr-Brown_from_TI_USB_Audio_CODEC-0.analog-stereo
  • Output: also_output.usb-Burr-Brown_from_TI_USB_Audio_CODEC-0.analog-stereo
• Frequencies
  • Right click on the “Working frequencies” table and insert 144.174 and 432.065 for FT8. I’m not sure about the 70cm frequency, as Continue reading

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5G-Boost: 5G from today for over 16 million people in Germany

BERLIN — June 17, 2020 — As of today, over 16 million people in Germany can use the Telekom...

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NEC and D-Wave Begin Joint Quantum Product Development, Marketing and Sales

NEC Corporation,and D-Wave Systems Inc. announced that they have begun joint activities to combine...

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SAP Remains Focused on Riding Hyperscalers

“We want to go up the stack, we want to own that as we are very good at that. And they provide...

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