You finally built that amazing start up idea you had in mind for years and you did it using Node.js! That's Great! You just launched it on Hacker News and you are very happy and proud... but now more and more people are using it and you start to have a nasty fear that Node.js won't scale, because you now... it's single threaded! Is your project doomed now? Do you have to invest your time on rewriting it in something like C++ or maybe Rust or even Go? You'd rather invest your time on adding valuable features for your users rather than learning a new language and rewriting everything from scratch, but what if nothing works anymore? And... by the way, what the heck ""single threaded"" really means?! Fear no more, dear fellow developer! In this talk we will discuss the architecture of Node.js going through its strengths and its weaknesses. We will then talk about scalability and I will share some valuable tips and tricks to make your Node.js app scale! Spoiler alert: you probably won't need Go or Rust :)
You finally built that amazing start-up idea you had in mind for years and you did it using Node.js! That's Great! You just launched it on Hacker News and you are very happy and proud... but now more and more people are using it and you start to have a nasty fear that Node.js won't scale because you now... it's single-threaded! Is your project doomed now? Do you have to invest your time on rewriting it in something like C++ or maybe Rust or even Go? You'd rather invest your time on adding valuable features for your users rather than learning a new language and rewriting everything from scratch, but what if nothing works anymore? And... by the way, what the heck "single-threaded" really means?! Fear no more, dear fellow developer! In this talk, we will discuss the architecture of Node.js going through its strengths and its weaknesses. We will then talk about scalability and I will share some valuable tips and tricks to make your Node.js app scale! Spoiler alert: you probably won't need Go or Rust :)
COMET is an upcoming method for delivering real-time interaction to a website by using server-push technologies. At the Snow Sprint 2008 Jean-Nicolas Bes and Ramon Bartl worked on making COMET work for the Open Source CMS Plone.
This is their presentation from the final sprint summary.
You finally built that amazing start-up idea you had in mind for years and you did it using Node.js! That's Great! You just launched it on Hacker News and you are very happy and proud... but now more and more people are using it and you start to have a nasty fear that Node.js won't scale because you now... it's single-threaded! Is your project doomed now? Do you have to invest your time on rewriting it in something like C++ or maybe Rust or even Go? You'd rather invest your time on adding valuable features for your users rather than learning a new language and rewriting everything from scratch, but what if nothing works anymore? And... by the way, what the heck "single-threaded" really means?! Fear no more, dear fellow developer! In this talk, we will discuss the architecture of Node.js going through its strengths and its weaknesses. We will then talk about scalability and I will share some valuable tips and tricks to make your Node.js app scale! Spoiler alert: you probably won't need Go or Rust :)
COMET is an upcoming method for delivering real-time interaction to a website by using server-push technologies. At the Snow Sprint 2008 Jean-Nicolas Bes and Ramon Bartl worked on making COMET work for the Open Source CMS Plone.
This is their presentation from the final sprint summary.
OSDC 2013 | Configuration Management and Linux Packages by Schlomo SchapiroNETWAYS
What is the connection between configuration management (CM) and Linux packages? Is there a connection? Why do the Linux packages get in the way of CM all the time? Why should I care about this topic?
In the modern world everybody has some tooling for CM, be it one of chef/puppet/cfengine or something else. All CM tools basically serve the same purpose: Automate everything between a blank new machine and a running system that is ready for production. That includes installing some packages and changing configuration files.
Not really surprising, Linux packages actually serve a very similar purpose, though with a completely different objective. Packages also install other packages and also bring some configuration files.
That is the reason why we should talk about CM and packages: Two different tool sets doing the same job with different objectives. That is also the reason why CM was invented and why distro packages tend to get in the way of what you are trying to achieve with CM. Look at sysadvent.blogspot.de/2012/12/day-10-packages-doing-too-much.html for a good example of this conflict of interests.
When faced with the challenge of finding a new deployment and configuration management solution, we decided to try something different and radically new: Use Linux packages for configuration management!
In this talk I will explain the rationale behind that decision and the design choices that allowed us to do this. We believe that this is a way out of the CM-packages conflict because we actually use the same tooling for everything: OS deployment, software rollout and configuration rollout. In our world there cannot be a conflict between distro packages and configuration because we actively design our packages and configuration to work seamlessly together with the distro packages.
If the time permits I will be happy to share a live demo of how we work with configuration packages.
The result of our work is published under the GPL at yadt-project.org, our tooling to create config RPMs from configuration data snippets kept in SVN can be found in github.com/yadt/yadt-config-rpm-maker. Take this as an example, the important part is package-based configuration rollout. It doesn't matter how you actually create those packages, it is only important that they are dumb and contain no install-time scripts.
Slides from my Planning to Fail talk given at PHP North East conference 2013. This is a slightly longer version of the same talk given at the PHP UK conference. The talk was on how you can build resilient systems by embracing failure.
Docker Logging and analysing with Elastic StackJakub Hajek
Collecting logs from the entire stateless environment is challenging parts of the application lifecycle. Correlating business logs with operating system metrics to provide insights is a crucial part of the entire organization. What aspects should be considered while you design your logging solutions?
Docker Logging and analysing with Elastic Stack - Jakub Hajek PROIDEA
Collecting logs from the entire stateless environment is challenging parts of the application lifecycle. Correlating business logs with operating system metrics to provide insights is a crucial part of the entire organization. We will see the technical presentation on how to manage a large amount of the data in a typical environment with microservices.
There's a lot to get right in setting up all those production microservices.
Luckily the effort to set all this up correctly can be minimized by using open-source software to set up cloud services correctly.
Here we will demonstrate the techniques the open-source Convox uses to set up microservices correctly from day one.
We'll demonstrate some simple Docker Compose configuration files that describe common microservice patterns. Then we'll demonstrate how this configuration is translated into a fully-automated production-ready microservice architecture on AWS.
Introduces important facts and tools to help you get starting with performance improvement.
Learn to monitor and analyze important metrics, then you can start digging and improving.
Includes useful munin probes, predefined SQL queries to investigate your database's performance, and a top 5 of the most common performance problems in custom Apps.
By Olivier Dony - Lead Developer & Community Manager, OpenERP
GitOps Core Concepts & Ways of Structuring Your ReposWeaveworks
Watch this talk on YouTube here: https://youtu.be/vLNZA_2Na_s
Whether you’re new to GitOps or a seasoned pro, this talk is for you! We'll start with the basics of how/where to get started, and then dive into one of the most asked GitOps questions: how to structure your repository!
During this talk, Scott & Pinky will review the Core Concepts of Flux including Git Sources, Reconciliation, Helm Releases, Kustomization, and Bootstrapping, to get you ramped up with how to think with a GitOps mindset! Then they’ll dive into and discuss considerations for and demo ways of structuring your repositories: monorepo, repo per environment, repo per team, or repo per app.
Resources:
- Flux on GitHub: https://github.com/fluxcd/flux2
- Flux docs: https://fluxcd.io/docs
- Core Concepts: https://fluxcd.io/docs/concepts/
- Sources: https://fluxcd.io/docs/components/source/
- Helm Releases: https://fluxcd.io/docs/guides/helmreleases/
- Kustomization: https://fluxcd.io/docs/components/kustomize/
Bootstrap: https://fluxcd.io/docs/installation/#bootstrap
- Ways of Structuring Your Repos: https://fluxcd.io/docs/guides/repository-structure/
Speaker Bios:
Priyanka “Pinky” Ravi is a Developer Experience Engineer at Weaveworks. She has worked on a multitude of topics including front end development, UI automation for testing and API development. Previously she was a software developer at a large insurance company where she was on the delivery engineering team working on GitOps enablement. She was instrumental in the multi-tenancy migration to utilize Flux for an internal Kubernetes offering. Outside of work, Priyanka enjoys hanging out with her husband and two rescue dogs as well as traveling around the globe.
Scott is a Brooklyn based interdisciplinary artist and Developer Advocate at Weaveworks. He co-founded the Basekamp art and research group in 1998 and the massively collaborative Plausible Artworlds international network. In technology he enjoys helping develop open source software that anyone can use, most recently projects in the cloud native landscape including co-maintaining Helm and Flux. In daily decisions, large or small, he tries to help make the world a better place for everyone.
All about Zookeeper and ClickHouse Keeper.pdfAltinity Ltd
ClickHouse clusters depend on ZooKeeper to handle replication and distributed DDL commands. In this Altinity webinar, we’ll explain why ZooKeeper is necessary, how it works, and introduce the new built-in replacement named ClickHouse Keeper. You’ll learn practical tips to care for ZooKeeper in sickness and health. You’ll also learn how/when to use ClickHouse Keeper. We will share our recommendations for keeping that happy as well.
Shift Remote: AI: Behind the scenes development in an AI company - Matija Ili...Shift Conference
Creating any type of company takes enormous amounts of effort, hard work, and persistence. Let alone an Artificial Intelligence company. As we can assure you, it will take a lot more than the above and adding just a team of brilliant AI scientists to build complex real-world AI solutions. In this talk, we will show you the crucial roles of development teams in a high-performing Artificial Intelligence company.
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OSDC 2013 | Configuration Management and Linux Packages by Schlomo SchapiroNETWAYS
What is the connection between configuration management (CM) and Linux packages? Is there a connection? Why do the Linux packages get in the way of CM all the time? Why should I care about this topic?
In the modern world everybody has some tooling for CM, be it one of chef/puppet/cfengine or something else. All CM tools basically serve the same purpose: Automate everything between a blank new machine and a running system that is ready for production. That includes installing some packages and changing configuration files.
Not really surprising, Linux packages actually serve a very similar purpose, though with a completely different objective. Packages also install other packages and also bring some configuration files.
That is the reason why we should talk about CM and packages: Two different tool sets doing the same job with different objectives. That is also the reason why CM was invented and why distro packages tend to get in the way of what you are trying to achieve with CM. Look at sysadvent.blogspot.de/2012/12/day-10-packages-doing-too-much.html for a good example of this conflict of interests.
When faced with the challenge of finding a new deployment and configuration management solution, we decided to try something different and radically new: Use Linux packages for configuration management!
In this talk I will explain the rationale behind that decision and the design choices that allowed us to do this. We believe that this is a way out of the CM-packages conflict because we actually use the same tooling for everything: OS deployment, software rollout and configuration rollout. In our world there cannot be a conflict between distro packages and configuration because we actively design our packages and configuration to work seamlessly together with the distro packages.
If the time permits I will be happy to share a live demo of how we work with configuration packages.
The result of our work is published under the GPL at yadt-project.org, our tooling to create config RPMs from configuration data snippets kept in SVN can be found in github.com/yadt/yadt-config-rpm-maker. Take this as an example, the important part is package-based configuration rollout. It doesn't matter how you actually create those packages, it is only important that they are dumb and contain no install-time scripts.
Slides from my Planning to Fail talk given at PHP North East conference 2013. This is a slightly longer version of the same talk given at the PHP UK conference. The talk was on how you can build resilient systems by embracing failure.
Docker Logging and analysing with Elastic StackJakub Hajek
Collecting logs from the entire stateless environment is challenging parts of the application lifecycle. Correlating business logs with operating system metrics to provide insights is a crucial part of the entire organization. What aspects should be considered while you design your logging solutions?
Docker Logging and analysing with Elastic Stack - Jakub Hajek PROIDEA
Collecting logs from the entire stateless environment is challenging parts of the application lifecycle. Correlating business logs with operating system metrics to provide insights is a crucial part of the entire organization. We will see the technical presentation on how to manage a large amount of the data in a typical environment with microservices.
There's a lot to get right in setting up all those production microservices.
Luckily the effort to set all this up correctly can be minimized by using open-source software to set up cloud services correctly.
Here we will demonstrate the techniques the open-source Convox uses to set up microservices correctly from day one.
We'll demonstrate some simple Docker Compose configuration files that describe common microservice patterns. Then we'll demonstrate how this configuration is translated into a fully-automated production-ready microservice architecture on AWS.
Introduces important facts and tools to help you get starting with performance improvement.
Learn to monitor and analyze important metrics, then you can start digging and improving.
Includes useful munin probes, predefined SQL queries to investigate your database's performance, and a top 5 of the most common performance problems in custom Apps.
By Olivier Dony - Lead Developer & Community Manager, OpenERP
GitOps Core Concepts & Ways of Structuring Your ReposWeaveworks
Watch this talk on YouTube here: https://youtu.be/vLNZA_2Na_s
Whether you’re new to GitOps or a seasoned pro, this talk is for you! We'll start with the basics of how/where to get started, and then dive into one of the most asked GitOps questions: how to structure your repository!
During this talk, Scott & Pinky will review the Core Concepts of Flux including Git Sources, Reconciliation, Helm Releases, Kustomization, and Bootstrapping, to get you ramped up with how to think with a GitOps mindset! Then they’ll dive into and discuss considerations for and demo ways of structuring your repositories: monorepo, repo per environment, repo per team, or repo per app.
Resources:
- Flux on GitHub: https://github.com/fluxcd/flux2
- Flux docs: https://fluxcd.io/docs
- Core Concepts: https://fluxcd.io/docs/concepts/
- Sources: https://fluxcd.io/docs/components/source/
- Helm Releases: https://fluxcd.io/docs/guides/helmreleases/
- Kustomization: https://fluxcd.io/docs/components/kustomize/
Bootstrap: https://fluxcd.io/docs/installation/#bootstrap
- Ways of Structuring Your Repos: https://fluxcd.io/docs/guides/repository-structure/
Speaker Bios:
Priyanka “Pinky” Ravi is a Developer Experience Engineer at Weaveworks. She has worked on a multitude of topics including front end development, UI automation for testing and API development. Previously she was a software developer at a large insurance company where she was on the delivery engineering team working on GitOps enablement. She was instrumental in the multi-tenancy migration to utilize Flux for an internal Kubernetes offering. Outside of work, Priyanka enjoys hanging out with her husband and two rescue dogs as well as traveling around the globe.
Scott is a Brooklyn based interdisciplinary artist and Developer Advocate at Weaveworks. He co-founded the Basekamp art and research group in 1998 and the massively collaborative Plausible Artworlds international network. In technology he enjoys helping develop open source software that anyone can use, most recently projects in the cloud native landscape including co-maintaining Helm and Flux. In daily decisions, large or small, he tries to help make the world a better place for everyone.
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ClickHouse clusters depend on ZooKeeper to handle replication and distributed DDL commands. In this Altinity webinar, we’ll explain why ZooKeeper is necessary, how it works, and introduce the new built-in replacement named ClickHouse Keeper. You’ll learn practical tips to care for ZooKeeper in sickness and health. You’ll also learn how/when to use ClickHouse Keeper. We will share our recommendations for keeping that happy as well.
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2) Architectural comparison of several OSS/ CNCF projects to address these patterns
3) Evolution trends for the APIs of these projects
4) Some design recommendations & guidelines for adopting/ deploying these solutions.
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# Internet Security: Safeguarding Your Digital World
In the contemporary digital age, the internet is a cornerstone of our daily lives. It connects us to vast amounts of information, provides platforms for communication, enables commerce, and offers endless entertainment. However, with these conveniences come significant security challenges. Internet security is essential to protect our digital identities, sensitive data, and overall online experience. This comprehensive guide explores the multifaceted world of internet security, providing insights into its importance, common threats, and effective strategies to safeguard your digital world.
## Understanding Internet Security
Internet security encompasses the measures and protocols used to protect information, devices, and networks from unauthorized access, attacks, and damage. It involves a wide range of practices designed to safeguard data confidentiality, integrity, and availability. Effective internet security is crucial for individuals, businesses, and governments alike, as cyber threats continue to evolve in complexity and scale.
### Key Components of Internet Security
1. **Confidentiality**: Ensuring that information is accessible only to those authorized to access it.
2. **Integrity**: Protecting information from being altered or tampered with by unauthorized parties.
3. **Availability**: Ensuring that authorized users have reliable access to information and resources when needed.
## Common Internet Security Threats
Cyber threats are numerous and constantly evolving. Understanding these threats is the first step in protecting against them. Some of the most common internet security threats include:
### Malware
Malware, or malicious software, is designed to harm, exploit, or otherwise compromise a device, network, or service. Common types of malware include:
- **Viruses**: Programs that attach themselves to legitimate software and replicate, spreading to other programs and files.
- **Worms**: Standalone malware that replicates itself to spread to other computers.
- **Trojan Horses**: Malicious software disguised as legitimate software.
- **Ransomware**: Malware that encrypts a user's files and demands a ransom for the decryption key.
- **Spyware**: Software that secretly monitors and collects user information.
### Phishing
Phishing is a social engineering attack that aims to steal sensitive information such as usernames, passwords, and credit card details. Attackers often masquerade as trusted entities in email or other communication channels, tricking victims into providing their information.
### Man-in-the-Middle (MitM) Attacks
MitM attacks occur when an attacker intercepts and potentially alters communication between two parties without their knowledge. This can lead to the unauthorized acquisition of sensitive information.
### Denial-of-Service (DoS) and Distributed Denial-of-Service (DDoS) Attacks
1.Wireless Communication System_Wireless communication is a broad term that i...JeyaPerumal1
Wireless communication involves the transmission of information over a distance without the help of wires, cables or any other forms of electrical conductors.
Wireless communication is a broad term that incorporates all procedures and forms of connecting and communicating between two or more devices using a wireless signal through wireless communication technologies and devices.
Features of Wireless Communication
The evolution of wireless technology has brought many advancements with its effective features.
The transmitted distance can be anywhere between a few meters (for example, a television's remote control) and thousands of kilometers (for example, radio communication).
Wireless communication can be used for cellular telephony, wireless access to the internet, wireless home networking, and so on.
This 7-second Brain Wave Ritual Attracts Money To You.!nirahealhty
Discover the power of a simple 7-second brain wave ritual that can attract wealth and abundance into your life. By tapping into specific brain frequencies, this technique helps you manifest financial success effortlessly. Ready to transform your financial future? Try this powerful ritual and start attracting money today!
APNIC Foundation, presented by Ellisha Heppner at the PNG DNS Forum 2024APNIC
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15. "Scalability is the property of a system to
handle a growing amount of work by
adding resources to the system"
— Wikipedia
@loige
8
16. "A service is said to be scalable if when
we increase the resources in a
system, it results in increased
performance in a manner
proportional to resources added"
— Werner Vogels
@loige
9