In the BGP Route Aggregation lab you can practice:
Note: if you want to keep things simple, run BGP labs with netlab (other options).
2023년 10월 4일, Cloudflare에서는 DNS 확인 문제를 겪었으며, 이 문제는 UTC 07:00에 시작하여 UTC 11:00에 끝났습니다. 1.1.1.1 또는 Warp, Zero Trust 등의 제품 또는 1.1.1.1을 사용하는 타사 DNS 확인자를 사용하는 사람 중 일부는 유효한 쿼리에 대해 SERVFAIL DNS 응답을 받았을 수도 있습니다. 이번에 서비스가 중단되어 정말 죄송합니다. 이번 서비스 중단은 공격이 아니라 내부 소프트웨어 오류로 발생했습니다. 이 블로그에서는 어떤 장애였는지, 장애가 왜 발생했는지, 이런 일이 다시 발생하지 않도록 우리가 무엇을 하고 있는지 설명하겠습니다.
도메인 네임 시스템(DNS)에서 모든 도메인 네임은 DNS 영역 내에 존재합니다. 이 영역은 함께 제어되는 도메인 이름과 호스트 이름의 모음입니다. 예를 들어, Cloudflare에서는 도메인 이름 cloudflare.com을 관리하며, 우리는 이를 "cloudflare.com" 영역이라고 부릅니다. .com의 최상위 도메인(TLD)은 타사 소유이며 "com" 영역에 있습니다. TLD는 cloudflare.com에 접속하는 방법에 대한 지침을 제공합니다. 모든 TLD 위에는 루트 영역이 있으며, 이 영역은 TLD에 도달하는 방법에 대한 지침을 제공합니다 . 즉, 루트 영역은 다른 모든 도메인 이름을 확인할 수 있는 중요한 영역입니다. DNS의 다른 중요한 부분과 마찬가지로 루트 영역은 DNSSEC로 서명되며, 이는 루트 영역 자체에 암호화 서명이 포함되어 있음을 의미합니다.
루트 영역은 루트 서버에 게시되지만, 루트 서버에 연결할 수 없는 경우에도 루트 영역의 정보를 계속 사용할 수 있도록 DNS 운영자가 루트 영역의 Continue reading
Migration Coordinator is a fully supported free tool, that is built into NSX Data Center, that is designed to help customers migrating from NSX for vSphere to NSX (aka NSX-T). NSX-T 2.4, was the first release, about three years back, to introduce Migration Coordinator with couple of modes to enable migrations. Today, migration coordinator supports over 10 different ways to migrate from NSX for vSphere to NSX.
The last three blogs in this series covered the various modes available along with the pros and cons of each mode.
This blog will focus on selecting the migration mode based on your requirements.
Before digging into how to go about selecting the right mode for the migration, let’s take a quick look at some of the terms, tools and high-level view of the modes available for migration, when leveraging Migration Coordaintor.
The following table summarizes some of the key terms used in regard to migrations:
| Terms | Description |
| In-place | Migrate using the same hardware |
| Lift and Shift | Migrate to either new or repurposed hardware. |
| DFW Only | Only Continue reading |
LoRaWAN is a wireless protocol that's well suited for use cases that require long-range, low-power operations such as sensors, asset and livestock tracking, municipal "smart city" initiatives, and more. On today's Heavy Wireless, Keith Parsons welcomes Raymond Hendrix and Troy Martin to discuss the architecture of a LoRaWAN solution, its applications, and its pros and cons. They also share resources for further learning, including the Things Network and the LoRa Alliance.
The post Heavy Wireless 012: Why Wireless Pros Should Get To Know LoRaWAN appeared first on Packet Pushers.
If there is one thing that is absolutely immune from inflationary curbs and that is, to a certain degree, also contributing to inflationary pressures in the global economy, it is generative AI. …
The post The AI Boom Props Up Datacenter Infrastructure Spending first appeared on The Next Platform.
The AI Boom Props Up Datacenter Infrastructure Spending was written by Timothy Prickett Morgan at The Next Platform.
Ansible validated content is a set of collections containing pre-built YAML content (such as playbooks or roles) to address the most common automation use cases. You can use Ansible validated content out-of-the-box or as a learning opportunity to develop your automation skills. It's a trusted starting point to bootstrap your automation: use it, customize it and learn from it!
This content is curated by experts like the Red Hat Automation Community of Practice so:
Ansible Automation Platform is a trusted delivery system to access and leverage Ansible validated content in your organization.
To do this there are a few short steps. Let’s walk through these together.
As part of your Ansible Automation Platform on cloud, you will also have a private automation hub. This is your own internal automation content Continue reading
Today, we’re announcing the general availability of the Magic WAN Connector, a key component of our SASE platform, Cloudflare One. Magic WAN Connector is the glue between your existing network hardware and Cloudflare’s network — it provides a super simplified software solution that comes pre-installed on Cloudflare-certified hardware, and is entirely managed from the Cloudflare One dashboard.
It takes only a few minutes from unboxing to seeing your network traffic automatically routed to the closest Cloudflare location, where it flows through a full stack of Zero Trust security controls before taking an accelerated path to its destination, whether that’s another location on your private network, a SaaS app, or any application on the open Internet.
Since we announced our beta earlier this year, organizations around the world have deployed the Magic WAN Connector to connect and secure their network locations. We’re excited for the general availability of the Magic WAN Connector to accelerate SASE transformation at scale.
When customers tell us about their journey to embrace SASE, one of the most common stories we hear is:
We started with our remote workforce, deploying modern solutions to secure access to internal apps and Internet resources. But now, we’re looking at Continue reading
If you’re monitoring the industry press (or other usual hype factories), you might have heard about Ultra Ethernet, a dazzling new technology that will be developed by the Ultra Ethernet Consortium1. What is it, and does it matter to you (TL&DR: probably not2)?
As always, let’s start with What Problem Are We Solving?
If you’re monitoring the industry press (or other usual hype factories), you might have heard about Ultra Ethernet, a dazzling new technology that will be developed by the Ultra Ethernet Consortium1. What is it and does it matter to you (TL&DR: probably not2)?
As always, let’s start with What Problem Are We Solving?
Today on the Tech Bytes podcast, we talk with sponsor Palo Alto Networks about SD-WAN in healthcare markets. The healthcare sector has stringent requirements around the privacy and security of patient information, but clinics also need reliable and robust performance. We discuss how SD-WAN can help meet all these requirements.
The post Tech Bytes: The SD-WAN Prescription For Healthcare Networks (Sponsored) appeared first on Packet Pushers.