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Category Archives for "Networking"

The Week in Internet News: Twitter Deletes Tweet, Nigeria Bans the Whole Platform

No more tweets: After Twitter removed a tweet by Nigerian President Muhammadu Buhari, the federal government there banned the platform, at least temporarily, because of “the persistent use of the platform for activities that are capable of undermining Nigeria’s corporate existence,” DW.com reports. Some Nigerians are tweeting anyway, but they risk arrest for doing so, […]

The post The Week in Internet News: Twitter Deletes Tweet, Nigeria Bans the Whole Platform appeared first on Internet Society.

IoT cloud services: How they stack up against DIY

Eager to cash in on the massive potential for IoT-based data storage and analytics, public-cloud vendors are diving headlong into the IoT market, offering enterprises everything from individual building blocks to fully managed services and every combination in between. Tech Spotlight: Cloud Computing Cloud or bust: IT leaders go all in on cloud computing (CIO) Migrating to hosted Exchange: Do’s and don’ts (Computerworld) AWS, Google Cloud Platform and Azure: How their security features compare (CSO) From legacy to the cloud: The 3 stages of enterprise modernization (InfoWorld) IoT cloud services: How they stack up against DIY (Network World) The amount of data that is expected to be generated by IoT devices is staggering. IDC predicts that by 2025, there will be 55.9 billion connected devices worldwide, 75% of which will be connected to an IoT platform. IDC estimates the amount of data generated from IoT devices will be 79.4 zettabytes by 2025.To read this article in full, please click here

ipSpace.net Subscription for System Administrators

One of our subscribers sent me this question:

I am a system administrator working primarily on server/storage virtualization. How would you recommend I take full advantage of the subscription while not being in networking full-time?

Let’s start with the webinars focused on technologies and fundamentals:

Read more …

ipSpace.net Subscription for System Administrators

One of our subscribers sent me this question:

I am a system administrator working primarily on server/storage virtualization. How would you recommend I take full advantage of the subscription while not being in networking full-time?

Let’s start with the webinars focused on technologies and fundamentals:

Read more …

5 years on air.

Hello my friend,

Have we thought 5 years ago that we would manage to keep the blog running for such a long period of time and would create such a huge amount of useful information for the community? Definitely not. And that’s why it is even important we managed to achieve such a milestone. Thank a lot each of you for your support, ideas, feedbacks, shared on social medias and likes! That means a lot for us. Please, continue doing so ?

The last 12 month were absolutely incredible. The COVID-19 pandemic struck word so much that noone could ever believe. As a result, we, pretty much as a whole work, worked from home all past 12 moths… Which was an unusual experience. However, we used this time (in fact, due to no necessity to spend time on commute, we have more time to work) productively working on various projects for you, our dear readers. So, what have we managed to achieve?

Network Automation and Programmability Fundamentals with Cisco Press

One of the massive achievements was to complete the book Network Automation and Programmability Fundamentals, which was published by Cisco Press in May 2021. The journey for us started back in Continue reading

Intricate AWS IPv6 Direct Connect Challenges

In his Where AWS IPv6 networking fails blog post, Jason Lavoie documents an intricate consequence of 2-pizza-teams not talking to one another: it’s really hard to get IPv6 in AWS VPC working with Transit Gateway and Direct Connect in large-scale multi-account environment due to the way IPv6 prefixes are propagated from VPCs to Direct Connect Gateway.

It’s one of those IPv6-only little details that you could never spot before stumbling on it in a real-life deployment… and to make it worse, it works well in IPv4 if you did proper address planning (which you can’t in IPv6).

Intricate AWS IPv6 Direct Connect Challenges

In his Where AWS IPv6 networking fails blog post, Jason Lavoie documents an intricate consequence of 2-pizza-teams not talking to one another: it’s really hard to get IPv6 in AWS VPC working with Transit Gateway and Direct Connect in large-scale multi-account environment due to the way IPv6 prefixes are propagated from VPCs to Direct Connect Gateway.

It’s one of those IPv6-only little details that you could never spot before stumbling on it in a real-life deployment… and to make it worse, it works well in IPv4 if you did proper address planning (which you can’t in IPv6).

Controversial Reads 061221


Ten years ago this spring, two million Tunisians came together on Facebook to transform their pent-up fury at their country’s authoritarian government into a four-week revolution that toppled the longtime dictatorship of Zine El Abidine Ben Ali


As it turns out, the internet is not that exceptional after all. It may be one of the greatest inventions since the printing press, as the cliché goes, and it has unquestionably revolutionized communication and commerce. But as David Pierce observed in Protocol shortly after the January 6 Capitol riot, “Everything is IRL” now. “[T]he barriers between online and offline life have disappeared completely.”


The one-two punch of the recent and upcoming executive orders on supply chains and cybersecurity may well be this jump-start and set the foundation for a significant and much-needed shift in US grand strategy.


Technology has its undeniable benefits in the workplace, but a sweeping reliance leaves people alienated, stripped of a common purpose and motivation to be loyal to their employer.


Still, inviting the ire of the entire East Coast and commanding headlines of major news publications for a week was certainly not what the DarkSide ransomware group had in mind when they targeted Colonial Pipeline’s IT Continue reading

Weekend Reads 061121


Domain name abuse is one of the most dangerous and under-regulated issues in digital business security today. Many of the largest companies in the world still lack basic domain security protocols, making them prime targets for bad actors.


The Internet Engineering Task Force (IETF) is a collaborative body that has developed internetworking specifications for more than five decades, successfully shaping the global marketplace of digital network equipment and services.


When data moves off a trusted network, it may be a default response to assume malicious intent is involved.


In this article, I want to discuss the importance of a TCB’s size, how you might measure it, and how difficult it can be to reduce its size. Let’s look at those issues in order.


If you work with Internet numbers, you will know that among Resource PKI (RPKI) specialists, this is one of the issues being discussed — how to make a PKI work for Internet number distribution.


It wasn’t the first time cloud services were the focus of a cyberattack, and it certainly won’t be the last. Cloud weaknesses were also critical in a 2019 breach at Capital One.


Managing the risk of third parties has become a compliance focus Continue reading

DNS Centrality

How did we get to here? How did a network technology such as the Internet, which was designed to pass control away from the central network to the connected devices succumb to unprecedented levels of centrality?

NetApp makes big hybrid-cloud push

NetApp is making a major effort to support hybrid cloud with a batch of software announcements around storage products, converged infrastructure, and cloud-management services.The main news was the release of the latest version of its flagship ONTAP software, as well as updates to other products designed to help organizations build a better hybrid-cloud strategies.ONTAP is the operating system for NetApp’s FAS (hybrid flash-disk) and AFF (all-flash) storage arrays. The latest version, 9.9, adds automatic backup and tiering of on-premises data to NetApp’s StorageGRID object storage as well as to public clouds. It enhances multilevel file security and remote access management, supports continuous data availability for two-times larger MetroCluster configurations, and  more replication options for backup and disaster recovery for large data containers for NAS workloads. It can attain up to four times the performance for single LUN applications such as VMware datastores.To read this article in full, please click here

NetApp makes big hybrid-cloud push

NetApp is making a major effort to support hybrid cloud with a batch of software announcements around storage products, converged infrastructure, and cloud-management services.The main news was the release of the latest version of its flagship ONTAP software, as well as updates to other products designed to help organizations build a better hybrid-cloud strategies.ONTAP is the operating system for NetApp’s FAS (hybrid flash-disk) and AFF (all-flash) storage arrays. The latest version, 9.9, adds automatic backup and tiering of on-premises data to NetApp’s StorageGRID object storage as well as to public clouds. It enhances multilevel file security and remote access management, supports continuous data availability for two-times larger MetroCluster configurations, and  more replication options for backup and disaster recovery for large data containers for NAS workloads. It can attain up to four times the performance for single LUN applications such as VMware datastores.To read this article in full, please click here

Rescuing a Linux system from near disaster

The more you know about how Linux works, the better you'll be able do some good troubleshooting when you run into a problem. In this post, we're going to dive into a problem that a contact of mine, Chris Husted, recently ran into and what he did to determine what was happening on his system, stop the problem in its tracks, and make sure that it was never going to happen again.Disaster strikes It all started when Chris' laptop reported that it was running out of disk space--specifically that only 1GB of available disk space remained on his 1TB drive. He hadn't seen this coming. He also found himself unable to save files and in a very challenging situation since it is the only system he has at his disposal and he needs the system to get his work done.To read this article in full, please click here

Rescuing a Linux system from near disaster

The more you know about how Linux works, the better you'll be able do some good troubleshooting when you run into a problem. In this post, we're going to dive into a problem that a contact of mine, Chris Husted, recently ran into and what he did to determine what was happening on his system, stop the problem in its tracks, and make sure that it was never going to happen again.Disaster strikes It all started when Chris' laptop reported that it was running out of disk space--specifically that only 1GB of available disk space remained on his 1TB drive. He hadn't seen this coming. He also found himself unable to save files and in a very challenging situation since it is the only system he has at his disposal and he needs the system to get his work done.To read this article in full, please click here

A Decade of CCIE Certification

I was notified this week that I’m eligible for the 10-year CCIE plaque. Which means that it’s been a decade since I walked out of Cisco’s Building C in San Jose with a new number and a different outlook on my networking career. The cliche is that “so many things have changed” since that day and it’s absolutely accurate because the only constant in life is change.

Labbing On the Road

I think the first thing that makes me think about the passage of time since my certification is the fact that the lab where I took the exam no longer exists. Building C was sold to the company that owns and operates the San Francisco 49ers stadium just down Tasman drive from the old letter buildings. Those real estate locations were much more valuable to the NFL than to Cisco. I can’t even really go and visit my old stomping grounds any more because the buildings were gutted, renovated, and offered to other operations that aren’t from Cisco.

Now, you don’t even go to San Jose or RTP for the lab. Three years ago the labs in the US moved to Richardson, TX. The central aspect of the location Continue reading

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