One of my subscribers sent me this question after watching the latest batch of Data Center Fabrics videos:
You haven’t mentioned Intel's Omni-Path at all. Should I be surprised?
While Omni-Path looks like a cool technology (at least at the whitepaper level), nobody ever mentioned it (or Intel) in any data center switching discussion I was involved in.
Read more ...Keeping CALM: when distributed consistency is easy Hellerstein & Alvaro, arXiv 2019
The CALM conjecture (and later theorem) was first introduced to the world in a 2010 keynote talk at PODS. Behind its simple formulation there’s a deep lesson to be learned with the power to create ripples through our industry akin to the influence of the CAP theorem. It rewards time spent ruminating on the implications. Therefore I was delighted to see this paper from Hellerstein & Alvaro providing a fresh and very approachable look at CALM that gives us an excuse to do exactly that. All we need now is a catchy name for a movement! A CALM system is a NoCo system, “No Coordination.”
When it comes to high performing scalable distributed systems, coordination is a killer. It’s the dominant term in the Universal Scalability Law. When we can avoid or reduce the need for coordination things tend to get simpler and faster. See for example Coordination avoidance in database systems, and more recently the amazing performance of Anna which gives a two-orders-of-magnitude speed-up through coordination elimination. So we should avoid coordination whenever we can.
So far so good, but when exactly can we avoid Continue reading
One of the ways that Citrix has bolstered its security and automation is through an integration...
On the 20th February 2019, Drupal announced that they had discovered a severe vulnerability and that they would be releasing a patch for it the next day. Drupal is a Content Management System used by many of our customers, which made it important that our WAF protect against the vulnerability as quickly as possible.
As soon as Drupal released their patch, we analysed it to establish what kind of payloads could be used against it and created rules to mitigate these. By analysing the patch we were able to put together WAF rules to protect cloudflare customers running Drupal.
We identified the type of vulnerability we were dealing within 15 minutes. From here, we were able to deploy rules to block the exploit well before any real attacks were seen.
As Drupal's release announcement explains, a site is affected if:
From looking at the patch we very quickly realised the exploit would be based on deserialization. The option ['allowed_classes' Continue reading
The security landscape is essentially AI versus AI. May the best man, err, machine win.
Cumulus Networks is proud to announce CRN®, a brand of The Channel Company, has named us to its 2019 Data Center 50 list.
This annual list identifies technology suppliers that offer the right management tools to help businesses and solution providers ensure data centers run with maximum performance and efficiency. We couldn’t be more thrilled! This accomplishment really solidifies our vision — to build the modern data center networks for applications of the future.
It’s been a while since we updated our blog community with our evolved vision for the modern data center, so we thought this would be a great opportunity to review a little bit about what Cumulus has been doing lately and how our products have evolved.
We pride ourselves on providing networking software to design, run and operate modern data centers that are simple, open, resilient, scalable and operationally efficient.
Our network operating system, Cumulus Linux, is a powerful, open network operating system that allows you to automate, customize and scale using web-scale principles like the world’s largest data centers.
When it comes to data center networks, traditional network solutions are unable keep up with the pace of Continue reading
When it comes to making swift pivots to keep pace with the newest architectural innovations, organizations like weather and climate prediction-focused NOAA have major constraints. …
NOAA Faces Winds of Architectural Change was written by Nicole Hemsoth at .
For over 30 years I’ve been in the playing in the “world of IT” and wow has that world changed a great deal in those years. But through all that change, there has been a thread, for me, that has always remained... Read More ›
The post Tips from a Network Detective appeared first on Networking with FISH.
The Chicago-based regional carrier plans to begin offering 5G services by the end of this year.
Archer is a governance, risk management, and compliance platform. NetWitness is a threat detection...
Traffic engineering (TE) is one of the most complex technologies used in large scale networks today. George Swallow joins us for a look at how and why TE was invented, and where some of the ideas came from.
Outro Music:
Danger Storm Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
http://creativecommons.org/licenses/by/3.0/
The attacks occurred after security research firm Pen Test Partners posted a blog containing...