Introducing new Cloudflare for SaaS documentation

Introducing new Cloudflare for SaaS documentation
Introducing new Cloudflare for SaaS documentation

As a SaaS provider, you’re juggling many challenges while building your application, whether it’s custom domain support, protection from attacks, or maintaining an origin server. In 2021, we were proud to announce Cloudflare for SaaS for Everyone, which allows anyone to use Cloudflare to cover those challenges, so they can focus on other aspects of their business. This product has a variety of potential implementations; now, we are excited to announce a new section in our Developer Docs specifically devoted to Cloudflare for SaaS documentation to allow you take full advantage of its product suite.

Cloudflare for SaaS solution

You may remember, from our October 2021 blog post, all the ways that Cloudflare provides solutions for SaaS providers:

  • Set up an origin server
  • Encrypt your customers’ traffic
  • Keep your customers online
  • Boost the performance of global customers
  • Support custom domains
  • Protect against attacks and bots
  • Scale for growth
  • Provide insights and analytics
Introducing new Cloudflare for SaaS documentation

However, we received feedback from customers indicating confusion around actually using the capabilities of Cloudflare for SaaS because there are so many features! With the existing documentation, it wasn’t 100% clear how to enhance security and performance, or how to support custom domains. Now, we want Continue reading

How I Migrated from MediaWiki to Notion

I've written before about how I use MediaWiki for taking notes and as one of my study tools. This has worked well for many years. But a problem started to develop: while I wrote my technical notes in MediaWiki, I wrote my day-to-day notes (books I want to read, notes from podcasts I listen to, and even my weekly planner) in Notion. This meant I had to use different apps for reading/writing in each tool, remember two different markup languages, and couldn't (cleanly) link pieces of content between the two. The final straw was realizing how much more effort I had to expend to maintain my MediaWiki instance; I just didn't have the time or will to keep up with new releases not to mention maintain the server itself.

For these reasons, I decided to move all of my MediaWiki content to Notion and unify all of my notes. But this revealed a new problem: there was no tooling to automate this. So I created my own. Here's how it works.

Read the rest of this post.

Report: Cloud services can be made more resilient but at a premium

Enterprises have options for making cloud services more resilient but at a price premium of up to 111% over the base price of services that offer no protection, according to a study by Uptime Institute.The extra cost can mean faster recovery times, better compensation from service-level agreements when there are outages, and improved “implied reliability,” according to Uptime’s report “Public cloud costs versus resiliency: stateless applications”. [ Get regularly scheduled insights by signing up for Network World newsletters. ] The institute modeled three scenarios for improving the resiliency of a simple WordPress website that was, at peak, required to deliver webpages within three seconds of requests. The researchers generated a Python simulation that varied bandwidth and virtual-machine demands to analyze their effects on costs.To read this article in full, please click here

Tech Bytes: Aruba Networks AIOps Get More Features and Functions

Aruba Networks is announcing new capabilities in its Aruba Central platform that leverage machine learning to do things like provide insights into clients on the network, recommend firmware for the best AP performance, and enable natural language queries in languages other than English.

The post Tech Bytes: Aruba Networks AIOps Get More Features and Functions appeared first on Packet Pushers.

RFC9199: Lessons in Large-scale Service Deployment

While RFC9199 (are we really in the 9000’s?) is targeted at large-scale DNS deployments–specifically root zone operators–so it might seem the average operator won’t find a lot of value here.

This is, however, far from the truth. Every lesson we’ve learned in deploying large-scale DNS root servers applies to any other large-scale user-facing service. Internally deployed DNS recursive servers are an obvious instance, but the lessons here might well apply to a scheduling, banking, or any other multi-user application accessed from a lot of places by a lot of different users. There are some unique points in DNS, such as the relatively slower pace of database synchronization across nodes, but the network-side lessons can still be useful for a lot of applications.

What are those lessons?

First, using anycast dramatically improves performance for these kinds of services. For those who aren’t familiar with the concept, anycase turns an IP address into a service identifier. Any host with a copy (or instance) or a given service advertises the same address, causing the routing table to choose the (topologically) closest instance of the service. If you’re using anycast, traffic destined to your service will automatically be forwarded to the closest server Continue reading

Posts from the Past, August 2022

I thought I might start highlighting some older posts here on the site through a semi-regular “Posts from the Past” series. I’ll start with posts published in the month of August through the years. Here’s hoping you find something that is useful (or perhaps entertaining, at least)!

August 2021

Last year, I had a couple of posts that I think are still relevant today. First, I talked about using Pulumi with Go to create a VPC Peering relationship on AWS. Second, I showed readers how to have Wireguard interfaces start automatically (using launchd) on macOS.

August 2020

I didn’t write too much in August 2020; my wife and I took a big road trip around the US to visit family and such. However, I did publish a post on some behavior changes in version 0.5.5 of the Cluster API tool clusterawsadm.

August 2019

This was a busy month for the blog! In addition to two Technology Short Takes, I also published posts on converting Kubernetes to an HA control plane, reconstructing the kubeadm join command (in the event you didn’t write down the output of kubeadm init), and one introducing Cluster API.

August 2018

In Continue reading

pygnmi 15. Overview of nornir_pygnmi

Hello my friend,

Are you looking for building network automation at scale leveraging the future-proof model-driven network automation? Besides attending our zero-to-hero network automation training and network automation with nornir, we suggest you to take a look at nornir_pygnmi, the new plugin we have created for Nornir to simplify management of network devices with gNMI.



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prior permission of the author.

Is GNMI a Good Interface for Network Automation?

Yes, it is. GNMI is one of the most recent interfaces created for the management plane, which allows you to manage the network devices (i.e., retrieve configuration and operational data, modify configuration) and collect the streaming or event-driven telemetry. Sounds like one-size-fits-all, isn’t it? On top of that, GNMI supports also different transport channels (i.e., encrypted and non-encrypted), which makes it suitable both for lab testing and for production environment. You may feel that we are biased to gNMI, and you are right. Actually, that is a Continue reading

Semtech acquires Sierra Wireless for IoT technology

Semiconductor maker Semtech has announced plans to acquire fellow chip vendor Sierra Wireless in an effort to accelerate its push into making internet of things components.Semtech makes a variety of analog and mixed-signal chips, including long-range, low-power wireless RF connectivity, power management, and video-broadcast equipment. Sierra Wireless makes dedicated IoT technology. Semtech has made steps toward this market but a takeover of Sierra would accelerate the effort. [ Get regularly scheduled insights by signing up for Network World newsletters. ]To read this article in full, please click here

Early adopters embrace private 5G

The appeal of private 5G is driving companies to explore ways to improve the performance, scalability and flexibility of their mobile networks.Enterprise deployment of the technology has been slow due to the pandemic and an immature device ecosystem, but that's not stopping early adopters. To help get started, they're turning to service providers, which can include telcos, private wireless vendors, hardware vendors, systems integrators, and major cloud players.To read this article in full, please click here

Who’s selling private 5G and what do you get?

Private 5G is technology that can be used in local area networks. Not to be confused with the public 5G connectivity offered by telephone companies, private 5G is used in corporate campuses, office buildings, factories and warehouses, event venues, and airports, either instead of or in addition to Wi-Fi.According to an unpublished survey from research firm Forrester, 44% of corporate telecommunications  decision-makers plan to create private 5G networks. Industries with significant private 5G plans include water and waste, high-tech manufacturing, and retail and wholesale. Other areas where private 5G might crop up include stadiums and construction sites, says Forrester analyst Andre Kindness. "They're prime for 5G technologies."To read this article in full, please click here

What is IoT? The internet of things explained

The internet of things (IoT) is a catch-all term for the growing number of electronics that aren't traditional computing devices, but are connected to the internet to send data, receive instructions or both.There's an incredibly broad range of ‘things’ that fall under the IoT umbrella: Internet-connected ‘smart’ versions of traditional appliances such as refrigerators and light bulbs; gadgets that could only exist in an internet-enabled world such as Alexa-style digital assistants; and internet-enabled sensors that are transforming factories, healthcare, transportation, distribution centers and farms.What is the internet of things? The IoT brings internet connectivity, data processing and analytics to the world of physical objects. For consumers, this means interacting with the global information network without the intermediary of a keyboard and screen (Alexa, for example).To read this article in full, please click here

What is IoT? The internet of things explained

The internet of things (IoT) is a catch-all term for the growing number of electronics that aren't traditional computing devices, but are connected to the internet to send data, receive instructions or both.There's an incredibly broad range of ‘things’ that fall under the IoT umbrella: Internet-connected ‘smart’ versions of traditional appliances such as refrigerators and light bulbs; gadgets that could only exist in an internet-enabled world such as Alexa-style digital assistants; and internet-enabled sensors that are transforming factories, healthcare, transportation, distribution centers and farms.What is the internet of things? The IoT brings internet connectivity, data processing and analytics to the world of physical objects. For consumers, this means interacting with the global information network without the intermediary of a keyboard and screen (Alexa, for example).To read this article in full, please click here

Tshark Packet Analysis

<MEDIUM:https://raaki-88.medium.com/tshark-packet-analysis-5d0dcc96e56a >

Commands used in the below post. If you wish for a quick reference instead of going through the post 

sudo tshark -f "tcp port 80" -F pcap -w /var/tmp/port_80_cap.pcap -c 10

sudo tshark -r /var/tmp/port_80_cap.pcap

sudo tshark -r /var/tmp/port_80_cap.pcap -Tfields -e ip.src -e tcp.port -e ip.ttl -e ip.dst

sudo tshark -f "tcp port 80" -F pcap -w /var/tmp/port_80_cap.pcap -c 10

sudo tshark -r /var/tmp/port_80_cap.pcap -Tfields -Y 
ip.dst==172.31.33.25 -e ip.dst -e tcp.dstport

sudo tshark -r capture_ospf.cap

sudo tshark -r capture_ospf.cap -Y "frame.number == 4"

sudo tshark -r capture_ospf.cap -Y "frame.number == 4" -V

Wireshark is famous for packet capture and analysis of various packet-capture files. Basically, if you never used Wireshark before it’s a sophisticated and popular GUI tool for doing packet captures and analysis.

While not every time you need a GUI tool or most importantly you don’t have access to a GUI environment, eg: you are running an EC2 cloud instance of ubuntu, typically you would not install a GUI extension to this, it is meant to run server workloads.

This is where Tshark Continue reading

Cleanup/Delete Transit-Gateway and Transit-Gateway-attachments

<MEDIUM: https://raaki-88.medium.com/cleanup-delete-transit-gateway-and-transit-gateway-attachments-42dac2dfb52a >

Am pasting my notes on cleaning up Transit-Gateway and Transit-gateway attachments, this is readily available on AWS documentation but thought I will paste it here if anyone wants to quickly copy and paste the steps instead of going through the documentation. We can be more sophisticated using Python / Ansible / Terraform and parse the outputs for now this is what I did to clean up some practice, do not forget this as it incurred good cost for but got saved by AWS credits!

1. list out available transit-gateway attachments as they are to be deleted first before deleting transit-gateway

aws ec2 describe-transit-gateway-attachments --region us-east-1 | egrep -i TransitGatewayAttachmentI -> This will list out TGW attachments in us-east-1

➜  ~ aws ec2 describe-transit-gateway-attachments --region us-east-1 | egrep -i TransitGatewayAttachmentId
            "TransitGatewayAttachmentId": "tgw-attach-01b7c8d7d3bd4e2ca",
            "TransitGatewayAttachmentId": "tgw-attach-050c87ef9fb703c98",
            "TransitGatewayAttachmentId": "tgw-attach-079921a8810f490ab",

2. Delete the available attachments

aws ec2 delete-transit-gateway-vpc-attachment \
    --transit-gateway-attachment-id tgw-attach-01b7c8d7d3bd4e2ca --region us-east-1

aws ec2 delete-transit-gateway-vpc-attachment \
    --transit-gateway-attachment-id tgw-attach-050c87ef9fb703c98 --region us-east-1

aws ec2 delete-transit-gateway-vpc-attachment \
    --transit-gateway-attachment-id tgw-attach-079921a8810f490ab --region us-east-1

3. ➜  List available Transit gateways

~ aws ec2 describe-transit-gateways --region us-east-1 | egrep -i "Transitgatewayid"
            "TransitGatewayId": "tgw-08dfd0c519456953d"

4. Delete transit-gateway

aws ec2  delete-transit-gateway \
    --transit-gateway-id tgw-08dfd0c519456953d --region us-east-1

{
    "TransitGateway":  Continue reading
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