Splitting the ping
Splitting the ping
Ping is one of the fundamental pillars of networking. It’s simple, universally supported, and is normally one of the f
Rant: Cisco ACI Complexity
A while ago Antti Leimio wrote a long twitter thread describing his frustrations with Cisco ACI object model. I asked him for permission to repost the whole thread as those things tend to get lost, and he graciously allowed me to do it, so here we go.
I took a 5 days Cisco DCACI course. This is all new to me. I’m confused. Who is ACI for? Capabilities and completeness of features is fantastic but how to manage this complex system?
Rant: Cisco ACI Complexity
A while ago Antti Leimio wrote a long twitter thread describing his frustrations with Cisco ACI object model. I asked him for permission to repost the whole thread as those things tend to get lost, and he graciously allowed me to do it, so here we go.
I took a 5 days Cisco DCACI course. This is all new to me. I’m confused. Who is ACI for? Capabilities and completeness of features is fantastic but how to manage this complex system?
Using the Cloud as WAN Transport
By integrating virtualized SD-WAN appliances within the various cloud transit gateways, SD-WAN can communicate optimal path selection routing data to and from a public cloud to a customer's private infrastructure.We are living in 1984 (ETERNALBLUE)
In the book 1984, the protagonist questions his sanity, because his memory differs from what appears to be everybody else's memory.
The Party said that Oceania had never been in alliance with Eurasia. He, Winston Smith, knew that Oceania had been in alliance with Eurasia as short a time as four years ago. But where did that knowledge exist? Only in his own consciousness, which in any case must soon be annihilated. And if all others accepted the lie which the Party imposed—if all records told the same tale—then the lie passed into history and became truth. ‘Who controls the past,’ ran the Party slogan, ‘controls the future: who controls the present controls the past.’ And yet the past, though of its nature alterable, never had been altered. Whatever was true now was true from everlasting to everlasting. It was quite simple. All that was needed was an unending series of victories over your own memory. ‘Reality control’, they called it: in Newspeak, ‘doublethink’.
I know that EternalBlue didn't cause the Baltimore ransomware attack. When the attack happened, the entire cybersecurity community agreed that EternalBlue wasn't responsible.
But this New York Times article said otherwise, blaming the Continue reading
Review: Perlroth’s book on the cyberarms market
New York Times reporter Nicole Perlroth has written a book on zero-days and nation-state hacking entitled “This Is How They Tell Me The World Ends”. Here is my review.
I’m not sure what the book intends to be. The blurbs from the publisher implies a work of investigative journalism, in which case it’s full of unforgivable factual errors. However, it reads more like a memoir, in which case errors are to be expected/forgivable, with content often from memory rather than rigorously fact checked notes.
But even with this more lenient interpretation, there are important flaws that should be pointed out. For example, the book claims the Saudi’s hacked Bezos with a zero-day. I claim that’s bunk. The book claims zero-days are “God mode” compared to other hacking techniques, I claim they are no better than the alternatives, usually worse, and rarely used.
But I can’t really list all the things I disagree with. It’s no use. She’s a New York Times reporter, impervious to disagreement.
If this were written by a tech journalist, then criticism would be the expected norm. Tech is full of factual truths, such as whether 2+2=5, where it’s possible for a thing to be Continue reading
Flow-based monitoring for Magic Transit
Network-layer DDoS attacks are on the rise, prompting security teams to rethink their L3 DDoS mitigation strategies to prevent business impact. Magic Transit protects customers’ entire networks from DDoS attacks by placing our network in front of theirs, either always on or on demand. Today, we’re announcing new functionality to improve the experience for on-demand Magic Transit customers: flow-based monitoring. Flow-based monitoring allows us to detect threats and notify customers when they’re under attack so they can activate Magic Transit for protection.
Magic Transit is Cloudflare’s solution to secure and accelerate your network at the IP layer. With Magic Transit, you get DDoS protection, traffic acceleration, and other network functions delivered as a service from every Cloudflare data center. With Cloudflare’s global network (59 Tbps capacity across 200+ cities) and <3sec time to mitigate at the edge, you’re covered from even the largest and most sophisticated attacks without compromising performance. Learn more about Magic Transit here.
Using Magic Transit on demand
With Magic Transit, Cloudflare advertises customers’ IP prefixes to the Internet with BGP in order to attract traffic to our network for DDoS protection. Customers can choose to use Magic Transit always on or on demand. With always Continue reading
Taking A Superhybrid Approach To HPC/AI Convergence
AMD has been on such a run with its future server CPUs and server GPUs in the supercomputer market, taking down big deals for big machines coming later this year and out into 2023, that we might forget sometimes that there are many more deals to be done and that neither Intel nor Nvidia are inactive when it comes to trying to get their compute engines into upper echelon machines. …
Taking A Superhybrid Approach To HPC/AI Convergence was written by Timothy Prickett Morgan at The Next Platform.
Juniper Rebuilds Its Enterprise SD-WAN Strategy With The Session-Smart Router
Juniper Networks is rebuilding its enterprise SD-WAN strategy around the Session-Smart Router (SSR) from 128 Technology, which Juniper acquired in October 2020. The Session-Smart Router integrates with Juniper's Mist AI platform and will replace Contrail Service Orchestration as its enterprise SD-WAN play.
The post Juniper Rebuilds Its Enterprise SD-WAN Strategy With The Session-Smart Router appeared first on Packet Pushers.
Heavy Networking 564: Seven Engineers At The Community Roundtable
Today's Heavy Networking episode is a grab bag of topics delivered in our community roundtable format. Five engineers join Ethan Banks and Greg Ferro to talk about subjects including IPv6, SmartNICs, firewall rule management, becoming a manager, and other topics.Heavy Networking 564: Seven Engineers At The Community Roundtable
Today's Heavy Networking episode is a grab bag of topics delivered in our community roundtable format. Five engineers join Ethan Banks and Greg Ferro to talk about subjects including IPv6, SmartNICs, firewall rule management, becoming a manager, and other topics.
The post Heavy Networking 564: Seven Engineers At The Community Roundtable appeared first on Packet Pushers.
Building Snowflakes On Purpose
We all know that building snowflake networks is bad, right? If it’s not a repeatable process it’s going to end up being a problem down the road. If we can’t refer back to documentation to shows why we did something we’re going to end up causing issues and reducing reliability. But what happens when a snowflake process is required to fix a bigger problem? It’s a fun story that highlights where process can break down sometimes.
Reloaded
I’ve mentioned before that I spent about six months doing telephone tech support for Gateway computers. This was back in 2003 so Windows XP was the hottest operating system out there. The nature of support means that you’re going to be spending more time working on older things. In my case this was Windows 95 and 98. Windows 98 was a pain but it was easy to work on.
One of the most common processes we had for Windows 98 was a system reload. It was the last line of defense to fix massive issues or remove viruses. It was something that was second nature to any of the technicians on the help desk:
- Boot from the Gateway tools CD and use GWSCAN Continue reading
Why Customers Always Escalate To Tech Support
Responding to Eyvonne's piece on escalation