Enterprises have been shifting many of their workloads into the cloud to take advantage of the scalability, efficiencies, and economics those environments offer. …
Project Arctic Means VMware Doesn’t Get Left Out In the Hybrid Cold was written by Jeffrey Burt at The Next Platform.
You may have heard a bit about the Hertzbleed attack that was recently disclosed. Fortunately, one of the student researchers who was part of the team that discovered this vulnerability and developed the attack is spending this summer with Cloudflare Research and can help us understand it better.
The first thing to note is that Hertzbleed is a new type of side-channel attack that relies on changes in CPU frequency. Hertzbleed is a real, and practical, threat to the security of cryptographic software.
Should I be worried?
From the Hertzbleed website,
“If you are an ordinary user and not a cryptography engineer, probably not: you don’t need to apply a patch or change any configurations right now. If you are a cryptography engineer, read on. Also, if you are running a SIKE decapsulation server, make sure to deploy the mitigation described below.”
Notice: As of today, there is no known attack that uses Hertzbleed to target conventional and standardized cryptography, such as the encryption used in Cloudflare products and services. Having said that, let’s get into the details of processor frequency scaling to understand the core of this vulnerability.
In short, the Hertzbleed attack shows that, under certain Continue reading
Cold takes on the Broadcom/VMware acquisition. We consider Broadcom's stated goal to increase VMW profit margin from 35% to 65% and what this will mean to customer experience.
The post HS027 Broadcom and VMware – What’s Gonna Happen? appeared first on Packet Pushers.
On today's Tech Bytes podcast we discuss the value of streaming telemetry in a modern network with sponsor Nokia. Nokia's SR-Linux network OS enables streaming telemetry, so let's dive into the value of telemetry, how the OS supports it, and options for consuming the telemetry to do useful things with it.
The post Tech Bytes: Maximize Network Data With Nokia’s Streaming Telemetry (Sponsored) appeared first on Packet Pushers.
It may have taken a while for the transition to 200 Gb/sec and 400 Gb/sec networking to take off in the datacenter, but this higher gear to switching is finally kicking in and delivering unprecedented bang for the buck in networks, and in fairly short order at least compared to sluggish pace that 100 Gb/sec Ethernet took getting into the datacenter. …
The Faster The Switch, The Cheaper Bit Flits was written by Timothy Prickett Morgan at The Next Platform.
In lesson 3 of this course about Ansible for network automation, Josh VanDeraa covers the lab environment used in this course, reviews the Ansible Network Modules documentation page, and look at the parameters of an Ansible module to know what’s required and what the response will be. Josh has created a GitHub repo to store […]
The post Ansible For Network Automation Lesson 3: Ansible Modules Overview – Video appeared first on Packet Pushers.
In this installment of the series on Ansible and network automation, Josh VanDeraa looks at how to update an Ansible config file, gather data from various devices using command modules including IOS, and use ios_facts to get IOS-specific information from IOS devices. Josh has created a GitHub repo to store additional material, including links and […]
The post Ansible For Network Automation Lesson 4: Gathering Device Information – Video appeared first on Packet Pushers.