Welcome to the first episode of Day Two Cloud, a new podcast that punctures the marketing hype and digs into the real work required to make the public cloud work for you. My guest Tim Warner walks us through a real-world application migration to Azure and shares lessons learned on scale, automation, and cost control.
The post Day Two Cloud 001: Building A Business On Azure appeared first on Packet Pushers.
The two operators agreed to a non-binding agreement and plan to build their own 5G networks in some cities.
A basic, layered approach to DNS security can dramatically reduce the chances of DNS and BGP-related compromise. Here are three essential, preventative measures that organizations should implement.
Check your domain registration and protect those logins
The post Emergency Directive 19-01, DNS 2FA suggested appeared first on EtherealMind.
The vendor added new capabilities to its data backup platform that prevent, detect, and respond to ransomware attacks.
The application monitoring company, owned by Cisco, debuted several new products that will help enterprises navigate the complexity of modern environments.
I’d like to share something with you. Something I learned (the hard way) in my life. Beware the tangled web you weave. There is a price to pay. I didn’t see this when I was in my 20s and 30s. ... Read More ›
The post Oh What a Tangled Web We Weave…… appeared first on Networking with FISH.
Why would a cloud company make its own electricity ?
The post Response: Google putting 1.6 million solar panels in Tennessee and Alabama appeared first on EtherealMind.
Measured adoption of 5G via practical use-cases such as fixed wireless will enable enterprises to get the experience and taste of what it is to come.
As of December 22, 2018, parts of the US Government have “shut down” because of a lapse in appropriation. The shutdown has caused the furlough of employees across the government and has affected federal contracts. An unexpected side-effect of this shutdown has been the expiration of TLS certificates on some .gov websites. This side-effect has emphasized a common issue on the Internet: the usage of expired certificates and their erosion of trust.
For an entity to provide a secure website, it needs a valid TLS certificate attached to the website server. These TLS certificates have both start dates and expiry dates. Normally certificates are renewed prior to their expiration. However, if there’s no one to execute this process, then websites serve expired certificates--a poor security practice.
This means that people looking for government information or resources may encounter alarming error messages when visiting important .gov websites:
The content of the website hasn’t changed; it’s just the cryptographic exchange that’s invalid (an expired certificate can’t be validated). These expired certificates present a trust problem. Certificate errors often dissuade people from accessing a website, and imply that the site is not to be trusted. Browsers purposefully make it difficult to continue to Continue reading
One of my subscribers sent me a question along these lines (heavily abridged):
My customer is running a colocation business, and has to provide L2 connectivity between racks, sometimes even across multiple data centers. They were using Q-in-Q to deliver that in a traditional fabric, and would like to replace that with multi-site EVPN fabric with ~100 ToR switches in each data center. However, Cisco doesn’t support Q-in-Q with multi-site EVPN. Any ideas?
As Lukas Krattiger explained in his part of Multi-Site Leaf-and-Spine Fabrics section of Leaf-and-Spine Fabric Architectures webinar, multi-site EVPN (VXLAN-to-VXLAN bridging) is hard. Don’t expect miracles like Q-in-Q over VNI any time soon ;)
Read more ...In this episode of the Network Collective Community Roundtable, the panel discusses the nuances of getting your organization connected to the internet. Is it as simple as connecting a cable and calling it a day, or is there more to think about when designing your Internet edge? Joining the Network Collective team for this conversation is Dr. Pete Welcher and Tom Ammon.
We would like to thank VIAVI Solutions for sponsoring this episode of Network Collective. VIAVI Solutions is an application and network management industry leader focusing on end-user experience by providing products that optimize performance and speed problem resolution. Helping to ensure delivery of critical applications for businesses worldwide, Viavi offers an integrated line of precision-engineered software and hardware systems for effective network monitoring and analysis. Learn more at www.viavisolutions.com/networkcollective.
We would also like to think PathSolutions for sponsoring this episode of Network Collective. PathSolutions TotalView is designed to automatically dig deep into network devices to learn what they know about your network’s performance. This means your network is no longer full of mysteries because you know everything your network knows. Try TotalView on your network, and it will show you 5 things about your network that you didn’t previously know. You can find out Continue reading
The Data Calculator: data structure design and cost synthesis from first principles and learned cost models Idreos et al., SIGMOD’18
This paper preceded the work on data continuums that we looked at last time, and takes a more general look at interactive and semi-automated design of data structures. A data structure here is defined as a combination of (1) a data layout describing how the data is stored, and (2) algorithms that describe how its basic functionality is achieved over the specific data layout. For data structures with just two different types of nodes (e.g., leaf-nodes and non-leaf nodes in a tree), the authors estimate there are more than 
Our intuition as that most designs (and even inventions) are about combining a small set of fundamental concepts in different ways or tunings… Our vision is to build the periodic table of data structures so we can express their massive design space. We take the first step in the paper, presenting a set of first principles that can synthesize an order of magnitude more data structure designs Continue reading
One of the most common requests we, as consultants, get from our customers is for an operations guide as the final deliverable for any data center build out. There are a few goals for such a guide:
Since Scott and I have been working on many operations guides, we thought it would be great to document our process so that customers can write their own operations guides.
The operations guide for web scale networking goes beyond just documenting configuration backups, user account access and change requests though. Web scale networking integrates proven software development processes and as such, the operations guide needs to account for these workflows.
The starting point of all operations guides is the initial build. Most of the cabling architecture, traffic flows and features, along with decision making and architectural choices, are captured within the High level Design and Low Level Design document. The operations guide on the other Continue reading