Multi-site Active-Active Solutions with NSX-V and F5 BIG-IP DNS

I’ve written several prior blogs on multi-site solutions with NSX-V discussing topics such as fundamentals, design options, multi-site security, and disaster recovery; see below links to review some of the prior material. In this post, I’ll discuss how VMware NSX-V and F5 BIG-IP DNS (prior known as F5 GTM) can be used together for Active/Active solutions where an application is spanning multiple sites and site-local ingress/egress for the application is desired. F5 offers both virtual and physical appliances; in this post I demonstrate using only the virtual (VE) F5 appliances. Big thanks to my friend Kent Munson at F5 Networks for helping with the F5 deployment in my lab and for providing some of the details to help with this blog post. This is the first of several blog posts to come on this topic.  Continue reading

All Of Ethan’s Podcasts And Articles For May 2017

Packet Pushers Community Blog

Packet Pushers News

Packet Pushers Weekly Podcast

Datanauts Podcast

Priority Queue Podcast

Citizens of Tech Podcast

Video

CentOS Atomic Host Customization Using cloud-init

Back in early March of this year, I wrote a post on customizing the Docker Engine on CentOS Atomic Host. In that post, I showed how you could use systemd constructs like drop-in units to customize the behavior of the Docker Engine when running on CentOS Atomic Host. In this post, I’m going to build on that information to show how this can be done using cloud-init on a public cloud provider (AWS, in this case).

Although I haven’t really blogged about it, I’d already taken the information in that first post and written some Ansible playbooks to do the same thing (see here for more information). Thus, one could use Ansible to do this when running CentOS Atomic Host on a public cloud provider. However, much like the original post, I wanted to find a very “cloud-native” way of doing this, and cloud-init seemed like a pretty good candidate.

All in all, it was pretty straightforward—with one significant exception. As I was testing this, I ran into an issue where the Docker daemon wouldn’t start after cloud-init had finished. Convinced I’d done something wrong, I kept going over the files, testing and re-testing (I’ve been working on this, off Continue reading

CentOS Atomic Host Customization Using cloud-init

Back in early March of this year, I wrote a post on customizing the Docker Engine on CentOS Atomic Host. In that post, I showed how you could use systemd constructs like drop-in units to customize the behavior of the Docker Engine when running on CentOS Atomic Host. In this post, I’m going to build on that information to show how this can be done using cloud-init on a public cloud provider (AWS, in this case).

Although I haven’t really blogged about it, I’d already taken the information in that first post and written some Ansible playbooks to do the same thing (see here for more information). Thus, one could use Ansible to do this when running CentOS Atomic Host on a public cloud provider. However, much like the original post, I wanted to find a very “cloud-native” way of doing this, and cloud-init seemed like a pretty good candidate.

All in all, it was pretty straightforward—with one significant exception. As I was testing this, I ran into an issue where the Docker daemon wouldn’t start after cloud-init had finished. Convinced I’d done something wrong, I kept going over the files, testing and re-testing (I’ve been working on this, off Continue reading

CentOS Atomic Host Customization Using cloud-init

Back in early March of this year, I wrote a post on customizing the Docker Engine on CentOS Atomic Host. In that post, I showed how you could use systemd constructs like drop-in units to customize the behavior of the Docker Engine when running on CentOS Atomic Host. In this post, I’m going to build on that information to show how this can be done using cloud-init on a public cloud provider (AWS, in this case).

Although I haven’t really blogged about it, I’d already taken the information in that first post and written some Ansible playbooks to do the same thing (see here for more information). Thus, one could use Ansible to do this when running CentOS Atomic Host on a public cloud provider. However, much like the original post, I wanted to find a very “cloud-native” way of doing this, and cloud-init seemed like a pretty good candidate.

All in all, it was pretty straightforward—with one significant exception. As I was testing this, I ran into an issue where the Docker daemon wouldn’t start after cloud-init had finished. Convinced I’d done something wrong, I kept going over the files, testing and re-testing (I’ve been working on this, off Continue reading

22% off APC Back-UPS 600VA 7-outlet Uninterruptible Power Supply (UPS) with USB Charging Port – Deal Alert

The new APC Back-UPS BE600M1 provides instant battery power to your critical electronics when the power goes out, keeping you connected and available both personally and professionally. Designed specifically to enhance the features that matter most to you, including more runtime, more battery backup outlets, and a USB port for charging convenience, the BE600M1 is also smaller and lighter than the previous model. APC's BE600M1 offers guaranteed surge and lightning protection for attached devices.  When the power goes out, the APC BE600M1 will power critical devices including home networking equipment; allowing you to maintain your internet connection. This allows you to work productively, avoid the loss of valuable data, and safely shut down equipment. It currently averages 4.5 out of 5 stars from over 4,400 people on Amazon (read reviews), where its list price of $74.99 has been reduced 22% to $58.73.To read this article in full or to leave a comment, please click here

22% off APC Back-UPS 600VA 7-outlet Uninterruptible Power Supply (UPS) with USB Charging Port – Deal Alert

The new APC Back-UPS BE600M1 provides instant battery power to your critical electronics when the power goes out, keeping you connected and available both personally and professionally. Designed specifically to enhance the features that matter most to you, including more runtime, more battery backup outlets, and a USB port for charging convenience, the BE600M1 is also smaller and lighter than the previous model. APC's BE600M1 offers guaranteed surge and lightning protection for attached devices.  When the power goes out, the APC BE600M1 will power critical devices including home networking equipment; allowing you to maintain your internet connection. This allows you to work productively, avoid the loss of valuable data, and safely shut down equipment. It currently averages 4.5 out of 5 stars from over 4,400 people on Amazon (read reviews), where its list price of $74.99 has been reduced 22% to $58.73.To read this article in full or to leave a comment, please click here

22% off APC Back-UPS 600VA 7-outlet Uninterruptible Power Supply (UPS) with USB Charging Port – Deal Alert

The new APC Back-UPS BE600M1 provides instant battery power to your critical electronics when the power goes out, keeping you connected and available both personally and professionally. Designed specifically to enhance the features that matter most to you, including more runtime, more battery backup outlets, and a USB port for charging convenience, the BE600M1 is also smaller and lighter than the previous model. APC's BE600M1 offers guaranteed surge and lightning protection for attached devices.  When the power goes out, the APC BE600M1 will power critical devices including home networking equipment; allowing you to maintain your internet connection. This allows you to work productively, avoid the loss of valuable data, and safely shut down equipment. It currently averages 4.5 out of 5 stars from over 4,400 people on Amazon (read reviews), where its list price of $74.99 has been reduced 22% to $58.73.To read this article in full or to leave a comment, please click here

Cumulus Linux and Ansible — now easier than ever

Back in November, Cumulus Networks unveiled NCLU, an interactive command-line interface for configuring switches running Cumulus Linux. NCLU was made to help networking experts drive Linux without having to learn its intricacies and quirks, and so far, it has been very successful. Network engineers are comfortable configuring devices interactively, so NCLU helps abstract the file-based nature of Linux to smooth out the learning curve.

Since I started working at Cumulus Networks over two years ago, I’ve noticed that most of our customers who are working with us for the first time fall neatly into two categories. The majority of our users are experienced network engineers with very little Linux knowledge, whereas a minority are Linux server power-users who may only know the basics of networking. Most of my colleagues at Cumulus are networking industry veterans who started off in the first category, while I fell into the latter. I’ve always been an automation-first developer who applies web-scale principles to everything I do, meaning that from the first day I started configuring Cumulus Linux, I was doing so with tools like Ansible. With the release of Ansible 2.3, I’m happy to report that Ansible now supports NCLU out of Continue reading

Worth Reading: These words should be banned

Client: “Our Big Data Rock Star ideated a cloud-based, scalable, native programmatic tool set that produced excellent learnings.” [Consultant]: “Well, it sounds like he took it to the next level … efforting 110% to craft a best practices, robust solution you can leverage, and it’s clearly out of the box thinking … but maybe you shouldn’t try to boil the ocean … it’s got a lot of moving parts and I’m not sure it’s something you want to take ownership of. … You might be accused of punching the puppy, so the optics are all wrong. We should probably put this in the parking lot.” —Shelly Palmer

The post Worth Reading: These words should be banned appeared first on rule 11 reader.

The problem with Linux packaging in large organizations

One of the challenges of implementing and utilizing Linux across a large organization—an organization where there are many different people with significantly different computing needs—is ... packaging.Seriously. Packaging is a big problem.Just as an example:Let's say you are in charge of IT for a 1,000-person organization. Your server needs dictate that you'll need (or at least likely want) a server-oriented Linux distribution with some sort of paid support contract. Easy enough. You can choose Red Hat Enterprise or SUSE Linux Enterprise. Server needs met.RELATED: Review: 5 open source alternatives for routers/firewalls But what about the marketing department? Does an enterprise-grade, server-focused distribution make sense for all of them? Probably not. Maybe you can standardize on one of the media production-focused distributions—or perhaps the community-driven sides of the enterprise distribution you already chose for your servers.To read this article in full or to leave a comment, please click here

IDG Contributor Network: Fashion meets technology: A new era in wearables evolution

Disclosure: I am employed by Qualcomm Technologies.Ten years from now, when we read about technology history, 2017 will be seen as a turning point in the evolution of wearables — when fashion met technology. Luxury brands used to think about novel fabrics, materials and designs when discussing technology advancements for their watches, glasses, hand bags and clothing. Now the minds behind the latest fashions consider the richness and responsiveness of their devices as well as the software user experience.Smartwatches are taking center stage in this convergence of style and technology. The arrival of fashion smartwatches began in 2015 with launches from such brands as Fossil, Michael Kors and Tag Heuer. This year, in the days leading up to Baselworld — the premier event for the world’s watch and jewelry industry, celebrating its 100th anniversary — we saw a plethora of smart timepiece announcements. At the show, there were smartwatch introductions from Diesel, Emporio Armani, Fossil, GC, Guess, Hugo Boss, Michael Kors, Misfit, Montblanc, Movado, Tag Heuer and Tommy Hilfiger.To read this article in full or to leave a comment, please click here

Reflections on Three Years on the ISOC Board of Trustees

Editor's Note: At the Internet Society’s Annual General Meeting in June 2017, Gihan Dias will be leaving the Board.  Thank you Gihan for your service and contributions.

Although I have been a Trustee of the Internet Society for three years now, my relationship with ISOC goes back much further – to 1995 when I attended the ISOC networking workshop for developing countries, held in Prague, Czech Republic. It was a really fantastic experience. Not only did we learn how to build the Internet, but we also met many of the people who actually built it!

Gihan Dias

Announcing the Docker Student Developer Kit & Campus Ambassador Program!

For quite some time now we have been receiving daily requests from students all over the world, asking for our help learning Docker, using Docker and teaching their peers how to use Docker. We love their enthusiasm, so we decided it was time to reach out to the student community and give them the helping hand they need!

Docker Education

 

Understanding how to use Docker is now a must have skill for students. Here are 5 reasons why:

  1. Understanding how to use Docker is one of the most important skills to learn if you want to advance in a career in tech, according to Business Insider.
  2. You can just start coding instead of spending time setting up your environment.
  3. You can collaborate easily with your peers and enable seamless group work: Docker eliminates any ‘works on my machine’ issues.
  4. Docker allows you to easily build applications with a modern microservices architecture.
  5. Using Docker will greatly enhance the security of your applications.

Getting Started with Docker

Are you a student who is excited about the prospect of using Docker but still don’t know exactly what Docker is or where to start learning? Now that your finals are over and you have all Continue reading

Crowdfunding campaign to buy stolen NSA hacking tools from Shadow Brokers

The idea of crowdfunding to raise enough money to buy NSA-linked hacking tools from the Shadow Brokers is picking up steam and making some people steam.The price tag for getting hold of stolen Equation Group hacking tools is 100 Zcash. When I started the article about the Shadow Brokers revealing details about its June dump of the month subscription service, the cost of 100 Zcash was equal to $22,779. By the time I finished writing, it was equal to $23,251. As I start this article, 100 Zcash is equal to $24,128. By tomorrow, the first day to subscribe to the Shadow Brokers monthly dump service, Zcash will likely cost even more dollars. If you don’t have that kind of money, but want to partake in the spoils of the June dump, then maybe crowdfunding is the way to go?To read this article in full or to leave a comment, please click here

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