Today's IPv6 Buzz podcast explore the topic of default address selection with IPv6 hosts as defined in RFC 6724. It's very common for a host to have multiple IPv6 addresses of different types (as well as an IPv4 address in dual-stack environments) and RFC 6724 includes rules for which addresses are used first.
The post IPv6 Buzz 121: Uncovering IPv6 Host Default Address Selection appeared first on Packet Pushers.
ADVERTORIAL: The increasing need for more accurate weather modelling rears its head on an almost daily basis, as the changing global climate proves to be one of humanity’s greatest challenges. …
Faster and more accurate weather forecasting with HPC in the cloud was written by Martin Courtney at The Next Platform.
Chinar Trivedi asked an interesting question about DHCP relaying in VXLAN/EVPN world on Twitter and my first thought was “that shouldn’t be hard” but when I read the first answer that turned into “wait a minute, how exactly does DHCP relaying works?”
I’m positive there’s a tutorial out there somewhere, but I decided to go back to the sources of wisdom: the RFCs. It turned out to be a long walk down the IETF history lane.
Chinar Trivedi asked an interesting question about DHCP relaying in VXLAN/EVPN world on Twitter and my first thought was “that shouldn’t be hard” but when I read the first answer that turned into “wait a minute, how exactly does DHCP relaying works?”
I’m positive there’s a tutorial out there somewhere, but I decided to go back to the sources of wisdom: the RFCs. It turned out to be a long walk down the IETF history lane.
There is something weird about storage companies that were started around the same time as the Great Recession. …
The Tough Climb To Profitability For MongoDB was written by Timothy Prickett Morgan at The Next Platform.
We know, as you do, that artificial intelligence is driving a lot of spending at IT organizations and is probably the fundamental driver of spending by the hyperscalers and cloud builders that have, thus far, benefitted most from the machine learning revolution. …
Software Eats The World, And AI Eats Software was written by Timothy Prickett Morgan at The Next Platform.
Today on Day Two Cloud we engage in strategic thinking about cloud, workload repatriation, costs and spending, DevOps and Kubernetes, and more with guest Tim Banks. Tim is a Lead Developer Advocate at Dell Technologies and has done stints at AWS, Equinix, and the Duckbill Group. Besides being a techie, Tim Banks is also a Brazilian Jiu Jitsu champion and world-ranked competitor in his class.
The post Day Two Cloud 185: Grappling With Cloud Strategies With Tim Banks appeared first on Packet Pushers.
Short answer is yes. Long answer is long. CHatGPT is useful for demonstrating potential and getting more funding for AI. In terms of potential for real work, well, its not good enough.
The post HS0042 Is ChatGPT Coming For Your Job appeared first on Packet Pushers.
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Happy International Women’s Day! The global theme for 2023 is #EmbraceEquity, which is part of an ongoing effort to raise awareness around “Why equal opportunities are no longer enough.” Today is a time to highlight achievements made by women, but also an opportunity to become better informed, and collaborate and brainstorm about the path forward.
“People start from different places, so true inclusion and belonging require equitable action.” — internationalwomensday.com
Consider taking a few minutes today to learn about pervasive challenges affecting women, including in the workplace. Since unconscious bias is a major driver of hurdles holding women back, it is beneficial for people of all gender identities to educate ourselves about the varied experiences of others.
Here are some resources to get help get you started:
In this blog post we’ll discuss how Cloudflare Workers enabled us to quickly improve the resiliency of a legacy system. In particular, we’ll discuss how we prevented the email notification systems within Cloudflare from outages caused by external vendors.
At Cloudflare, we send email notifications to customers such as billing invoices, password resets, OTP logins and certificate status updates. We rely on external Email Service Providers (ESPs) to deliver these emails to customers.
The following diagram shows how the system looks. Multiple services in our control plane dispatch emails through an external email vendor. They use HTTP Transmission APIs and also SMTP to send messages to the vendor. If dispatching an email fails, they are retried with exponential back-off mechanisms. Even when our ESP has outages, the retry mechanisms in place guarantee that we don’t lose any messages.
In some cases, it isn’t sufficient to just deliver the email to the customer; it must be delivered on time. For example, OTP login emails are extremely time sensitive; their validity is short-lived such that a delay in sending them is as bad as not sending them at all. If the ESP Continue reading
I wrote two dozen blog posts describing IP anycast concepts, from first-hop anycast gateways to anycast between DNS servers and global anycast (as used by large web properties), but never organized them in any usable form.
That’s fixed: everything I ever wrote about anycast is nicely structured on the new Anycast Resources page.
I wrote two dozen blog posts describing IP anycast concepts, from first-hop anycast gateways to anycast between DNS servers and global anycast (as used by large web properties), but never organized them in any usable form.
That’s fixed: everything I ever wrote about anycast is nicely structured on the new Anycast Resources page.
Secrets, such as usernames, passwords, API tokens, and TLS certificates, contain confidential data that can be used to authenticate and authorize users, groups, or entities. As the name implies, secrets are not meant to be known or seen by others. So how do we keep them safe?
The key to keeping secrets safe lies within how you manage them. Where to store secrets, how to retrieve them, and how to make them available in an application as needed are all early design choices a developer must make when migrating an application or microservice to Kubernetes. Part of this design choice is to ensure the secrets can become available without compromising the application’s security posture.
In this article, I will provide approaches and recommended best practices for managing secrets in Kubernetes.
Let’s start with some approaches. Below are three approaches I recommend for Kubernetes secrets management.
etcd is a supported datastore in Kubernetes, and a lot of developers opt to store secrets in a Base64-encoded format in etcd as a key-value pair. Secrets stored in etcd can be made available from within Kubernetes deployment specs as an environment variable, which is stored in Continue reading
Marvell has had a large and profitable I/O and networking silicon business for a long time, but with the acquisitions of Inphi in October 2020 and of Innovium in August 2021, the company is building a credible networking stack that can take on Broadcom, Cisco Systems, and Nvidia for the $1.3 billion or so in switch chips sold into the datacenter each year, which is growing at about 15 percent a year to more than $2 billion by 2026. …
Setting The Stage For 1.6T Ethernet, And Driving 800G Now was written by Timothy Prickett Morgan at The Next Platform.