NetworkingNexus.net

First-hand Feedback: ipSpace.net Network Automation Course

Daniel Teycheney attended the Spring 2019 Building Network Automation Solutions online course and sent me this feedback after completing it (and creating some interesting real-life solutions on the way):

I spent a bit of time the other day reflecting on how much I’ve learn’t from the course in terms of technical skills and the amount I’ve learned has been great. I literally no idea about things like Git, Jinja2, CI testing, reading YAML files and had only briefly seen Ansible before.

I’m not an expert now, but I understand these things and have real practical experience on these subjects which has given me great confidence to push on and keep getting better.

The Internet Is Your Oyster: MANRS at International Telecoms Week

What do oysters, clams, and mussels have in common with network operators? Hint: it’s not just that they are both in Atlanta this week, either in exhibits in the Georgia Aquarium or for the 2019 International Telecoms Week.

It’s that both bivalves and network operators play an incredibly important role for their ecosystems: they filter the bad stuff out and leave things a lot cleaner.

As water quality is vital to life in the ocean, the global routing system is vital to the smooth functioning of the Internet. The routing system’s decentralized structure, made up of thousands of independent networks tied together through business decisions and trusted relationships, provides flexibility, scalability, and overall durability.

However, despite its strengths, thousands of routing incidents occur every year. Some of these can be pretty scary, with route hijacks sending government traffic through the networks of foreign adversaries; route leaks slowing parts of the global Internet to a crawl; or hackers using spoofed traffic to take down websites in distributed denial of service (DDoS) attacks.

Network operators can help mitigate these problems by using stronger filtering policies to block spoofed traffic coming from their networks (helping guard against DDoS attacks) and filter route announcements Continue reading

The Week in Internet News: AI and IoT Could Lead to Industry 4.0

The new revolution: Advances in the Internet of Things and Artificial Intelligence are leading to a fourth industrial revolution, Ars Technica suggests. This so-called Industry 4.0 represents “huge changes in much of the technology we deal with in our daily lives. Some of those changes have been for the better, making our interaction with machines and information more natural and more powerful. Others have helped companies tap into consumers’ relationships, behaviors, locations and innermost thoughts in powerful and often disturbing ways.”

Security gaps: But all is not well in IoT land. Legacy problems related to networking technologies are making IoT security “as bad as it gets,” IoT Hub reports. In addition, staff remotely monitoring IoT sensors don’t have the experience to fix problems.

They’re keeping their eyes on you: The Indian government has found a way to track WhatsApp messages without breaking encryption, Business Insider reports. The surveillance technique involves the government asking the Facebook-owned messaging platform to implement an identifier that would allow law enforcement officials to pinpoint who sent the message without reading it.

A new way to pay: In other Facebook-related news, the company is planning to launch a new cryptocurrency called Libra, The Verge Continue reading

Join Cloudflare & Moz at our next meetup, Serverless in Seattle!

Cloudflare is organizing a meetup in Seattle on Tuesday, June 25th and we hope you can join. We’ll be bringing together members of the developers community and Cloudflare users for an evening of discussion about serverless compute and the infinite number of use cases for deploying code at the edge.

To kick things off, our guest speaker Devin Ellis will share how Moz uses Cloudflare Workers to reduce time to first byte 30-70% by caching dynamic content at the edge. Kirk Schwenkler, Solutions Engineering Lead at Cloudflare, will facilitate this discussion and share his perspective on how to grow and secure businesses at scale.

Next up, Developer Advocate Kristian Freeman will take you through a live demo of Workers and highlight new features of the platform. This will be an interactive session where you can try out Workers for free and develop your own applications using our new command-line tool.

Food and drinks will be served til close so grab your laptop and a friend and come on by!

View Event Details & Register Here

Agenda:

5:00 pm Doors open, food and drinks

5:30 pm Customer use case by Devin and Kirk

6:00 pm Workers Continue reading

Join Cloudflare & Moz at our next meetup, Serverless in Seattle!

Food and drinks will be served til close so grab your laptop and a friend and come on by!

View Event Details & Register Here

Agenda:

5:00 pm Doors open, food and drinks

5:30 pm Customer use case by Devin and Kirk

6:00 pm Workers Continue reading

Fast key-value stores: an idea whose time has come and gone

Fast key-value stores: an idea whose time has come and gone Adya et al., HotOS’19

No controversy here! Adya et al. would like you to stop using Memcached and Redis, and start building 11-factor apps. Factor VI in the 12-factor app manifesto, “Execute the app as one or more stateless processes,” to be dropped and replaced with “Execute the app as one or more stateful processes.”

It all makes for a highly engaging position paper (even if that engagement doesn’t necessarily take the form of agreement on all points)! It’s healthy to challenge the status-quo from time to time…

Remote, in-memory key-value (RInK) stores such as Memcached and Redis are widely used in industry and are an active area of academic research. Coupled with stateless application servers to execute business logic and a database-like system to provide persistent storage, they form a core component of popular data center service archictectures. We argue that the time of the RInK store has come and and gone…

What on earth are they thinking? ;)

Why are developers using RInK systems as part of their design? Generally to cache data (including non-persistent data that never sees a backing store), to share Continue reading

Weekly Top Posts: 2019-06-23

Gitlab Gitaly Error

After a power failure of the instance hosting my gitlab server I began getting errors when trying to access existing projects (404) or create new projects (503) from the web interface. I could see the list of projects but if I clicked on the link to any of them I would get a 404 errors. ...

Gitlab Gitaly Error

Gitlab gitaly issue causing 404 and 503 errors.

Major Updates to Cisco Certifications Part IIII (CCIE)

The CCIE, now 25 years old, has always been the pinnacle of Cisco certifications. There has been a lot of buzz on the importance of certs, and the CCIE, in the “new” era. For that reason, it’s more important than ever that the CCIE gets updated and stays current.

With Cisco’s new announcements, what is changing with the CCIE?

The first thing to mention, for those that already have a CCIE, is that the recert cycle is now being changed to match the other certs such as CCNA and CCNP, so that the recert cycle is 3 years. This means that the suspended status is gone. The cert is now valid for 3 years and there is no suspended status. This means that you need to keep track of your date because there is no “grace period”, after 3 years, if you miss to recert, you’re out! This also means that effective 24 February 2020, if you are still active or suspended, you get an extra year “for free” and you will be a active CCIE to your new expiration date.

Because the recert cycle is now 3 years, you will need to get 120 CE credits instead of 100, Continue reading

Musing: HPE Cloudless Is A Good Marketing Joke

HPE announced a marketing campaign built around the idea of Cloudless. I see this as a superb bit of trolling as the cloudista faithful have been delightfully duped into talking about HPE and highlighting how narrow minded they are. Most of them don’t even realise just how hard they are being rick-rolled here. Its bloody […]

The post Musing: HPE Cloudless Is A Good Marketing Joke appeared first on EtherealMind.

BT Positions Itself as a Neutral SD-WAN Advisor

BT, a United Kingdom-based telecom operator, says almost all of its current and prospective...

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SDxCentral Weekly Wrap: VMware Dives Deeper Into Multi-Cloud Security With Secure State

SDxCentral Weekly Wrap for June 21, 2019: VMware is brining together past security acquisitions;...

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Latest Kubernetes Security Flaw Linked to Incomplete Patch of Past Flaw

Joel Smith, who works with the Kubernetes Product Security Committee, described the latest bug as...

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IDG Contributor Network: Software Defined Perimeter (SDP): The deployment

Deploying zero trust software-defined perimeter (SDP) architecture is not about completely replacing virtual private network (VPN) technologies and firewalls. By and large, the firewall demarcation points that mark the inside and outside are not going away anytime soon. The VPN concentrator will also have its position for the foreseeable future.A rip and replace is a very aggressive deployment approach regardless of the age of technology. And while SDP is new, it should be approached with care when choosing the correct vendor. An SDP adoption should be a slow migration process as opposed to the once off rip and replace. As I wrote about on Network Insight [Disclaimer: the author is employed by Network Insight], while SDP is a disruptive technology, after discussing with numerous SDP vendors, I have discovered that the current SDP landscape tends to be based on specific use cases and projects, as opposed to a technology that has to be implemented globally. To start with, you should be able to implement SDP for only certain user segments.To read this article in full, please click here

AT&T, HPE Tackle MEC, 5G, and All the Acronyms

The joint product, which combines AT&T multi-access edge compute services and HPE’s...

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Hutchison Drei Austria Taunts Rivals With ‘Real 5G’

The mobile operator is starting its 5G journey in Linz, with official rate plans and commercial...

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Cisco Live 2019 – Rededicating Community

The 2019 Cisco Live Sign Photo

Another Cisco Live is in the books for me. I was a bit shocked to realize this was my 14th event in a row. I’ve been going to Cisco Live half of the time it’s been around! This year was back in San Diego, which has good and bad points. I’d like to discuss a few of them there and get the thoughts of the community.

Good: The Social Media Hub Has Been Freed! – After last year’s issues with the Social Media Hub being locked behind the World of Solutions, someone at Cisco woke up and realized that social people don’t keep the same hours as the show floor people. So, the Hub was located in a breezeway between the Sails Pavilion and the rest of the convention center. And it was great. People congregated. Couches were used. Discussions were had. And the community was able to come together again. Not during the hours when it was convenient. But a long time. This picture of the big meeting on Thursday just solidifies in my mind why the Social Media Hub has to be in a common area:

You don’t get this kind of Continue reading

Introducing time.cloudflare.com

This is a guest post by Aanchal Malhotra, a Graduate Research Assistant at Boston University and former Cloudflare intern on the Cryptography team.

Cloudflare has always been a leader in deploying secure versions of insecure Internet protocols and making them available for free for anyone to use. In 2014, we launched one of the world’s first free, secure HTTPS service (Universal SSL) to go along with our existing free HTTP plan. When we launched the 1.1.1.1 DNS resolver, we also supported the new secure versions of DNS (DNS over HTTPS and DNS over TLS). Today, as part of Crypto Week 2019, we are doing the same thing for the Network Time Protocol (NTP), the dominant protocol for obtaining time over the Internet.

This announcement is personal for me. I've spent the last four years identifying and fixing vulnerabilities in time protocols. Today I’m proud to help introduce a service that would have made my life from 2015 through 2019 a whole lot harder: time.cloudflare.com, a free time service that supports both NTP and the emerging Network Time Security (NTS) protocol for securing NTP. Now, anyone can get Continue reading

Introducing time.cloudflare.com

This is a guest post by Aanchal Malhotra, a Graduate Research Assistant at Boston University and former Cloudflare intern on the Cryptography team.

Cloudflare has always been a leader in deploying secure versions of insecure Internet protocols and making them available for free for anyone to use. In 2014, we launched one of the world’s first free, secure HTTPS service (Universal SSL) to go along with our existing free HTTP plan. When we launched the 1.1.1.1 DNS resolver, we also supported the new secure versions of DNS (DNS over HTTPS and DNS over TLS). Today, we are doing the same thing for the Network Time Protocol (NTP), the dominant protocol for obtaining time over the Internet.

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