This document discusses potential improvements that could be made to the MQTT 3.1.1 protocol. It addresses issues with ensuring "exactly once" delivery, security problems with retained messages and lack of provenance, and error handling. The document recommends that clients implement "QoS 2" functionality using QoS 1 to avoid duplicate messages, adding token-based security and metadata about messages. It also compares MQTT to the CoAP-PubSub protocol.
Why HTTP Won't Work For The Internet of Things (Dreamforce 2014)kellogh
The Internet of Things has offers compounding value but also compounding problems on top of what we get for either the Internet or embedded technology. While HTTP made the Web successful, the challenges experienced by the IoT are different and require different solutions.
WebSocket MicroService vs. REST MicroserviceRick Hightower
Comparing the speed of RPC calls over WebScoket Microservices versus REST based microservices. Using wrk, QBit, and examples in Java we show how much faster WebSocket is for doing RPC service calls.
A short introduction of the unexpected problems we encountered (and solutions we designed) during the last two years of exploitation of our home made service bus in production.
Dark launching with Consul at Hootsuite - Bill MonkmanAmbassador Labs
Dark Launching (A.K.A. Feature Flagging) is a technique and mindset that has truly shaped the way we write, test, and deploy code at Hootsuite. It gives our team realtime, fine-grained control over our production systems which helps to prevent issues from reaching users, and build developer confidence in a culture of pushing code many times per day.
In this presentation I will go over how the system helps us both in the context of microservices and monoliths, and how we made use of Consul, Hashicorp's HA service discovery / KV store, to make it more resilient and performant at scale.
Why HTTP Won't Work For The Internet of Things (Dreamforce 2014)kellogh
The Internet of Things has offers compounding value but also compounding problems on top of what we get for either the Internet or embedded technology. While HTTP made the Web successful, the challenges experienced by the IoT are different and require different solutions.
WebSocket MicroService vs. REST MicroserviceRick Hightower
Comparing the speed of RPC calls over WebScoket Microservices versus REST based microservices. Using wrk, QBit, and examples in Java we show how much faster WebSocket is for doing RPC service calls.
A short introduction of the unexpected problems we encountered (and solutions we designed) during the last two years of exploitation of our home made service bus in production.
Dark launching with Consul at Hootsuite - Bill MonkmanAmbassador Labs
Dark Launching (A.K.A. Feature Flagging) is a technique and mindset that has truly shaped the way we write, test, and deploy code at Hootsuite. It gives our team realtime, fine-grained control over our production systems which helps to prevent issues from reaching users, and build developer confidence in a culture of pushing code many times per day.
In this presentation I will go over how the system helps us both in the context of microservices and monoliths, and how we made use of Consul, Hashicorp's HA service discovery / KV store, to make it more resilient and performant at scale.
Observability beyond logging for Java MicroservicesLuke Marsden
This talk covers the fundamentals of observability for modern microservices: Logging, Monitoring, Tracing & Visualization. In terms of monitoring, Prometheus is shown with example client code in Java; for tracing, OpenTracing with Zipkin is given as an example; for visualization, Weave Scope is given as an example.
Developing Realtime Data Pipelines With Apache KafkaJoe Stein
Developing Realtime Data Pipelines With Apache Kafka. Apache Kafka is publish-subscribe messaging rethought as a distributed commit log. A single Kafka broker can handle hundreds of megabytes of reads and writes per second from thousands of clients. Kafka is designed to allow a single cluster to serve as the central data backbone for a large organization. It can be elastically and transparently expanded without downtime. Data streams are partitioned and spread over a cluster of machines to allow data streams larger than the capability of any single machine and to allow clusters of co-ordinated consumers. Messages are persisted on disk and replicated within the cluster to prevent data loss. Each broker can handle terabytes of messages without performance impact. Kafka has a modern cluster-centric design that offers strong durability and fault-tolerance guarantees.
Micro on NATS - Microservices with MessagingApcera
This is a talk given by Asim Aslam at the NATS London Meetup on May 10th, 2016. It explains what Micro is (Microservices toolkit), and how it uses NATS - a lightweight high performance open source messaging system for microservices, cloud native, and IoT networks written in Golang.
You can learn more about NATS at http://www.nats.io
You can learn more about Micro at https://micro.mu/
How and why we got Prometheus working with Docker SwarmLuke Marsden
This talk tells the tale of how Docker, Weaveworks and Container Solutions collaborated to get Prometheus working dynamically with Docker Swarm. Luke Marsden and Justin Cormack work together to iterate on a design, throw one away, and then go to the pub while our friends at Container Solutions made it work.
There is a renaissance underway in the messaging space. Due to the demands of IoT networks, cloud native apps, and microservices developers are looking for simple, fast, messaging systems. This is a sharp contrast to how traditional messaging was done.
This webinar will cover:
- The basics of messaging patterns
- What makes NATS unique
- Using a demo inspired by Pokemon Go as an example
Webinar Slides: Real time Recommendations with Redis, Java and WebsocketsRedis Labs
WebSockets connect the browser to your app server. But what if the processing happens on some other server? In that case you need to connect the worker process to the app process via a messaging system. After experimenting with RabbitMQ, we settled on Redis as a great pub sub and a caching system.
In this webinar you will learn:
* How to use Java, Spring, and Redis ( spring-websockets and spring-data-redis) to power a real time recommendations system
* How many users are currently using your system in real time
By Tom Wilkie, delivered at London Microservices User Group on 2/12/15
The rise of microservice-based applications has had many knock-on effects, not least on the complexity of monitoring your application. Order-of-magnitude increase in the number of moving parts and rate of change of the application require us to reassess traditional monitoring techniques.
In this talk we will discuss some different approaches to monitoring, visualising and tracing containerised, microservices-based applications. We’ll present different techniques to some of the emergent problems, and try not to rant too much.
The wrong assumptions and choices can undermine your move to Kubernetes. Instructions on how to implement and scale Kubernetes abounds. What’s missing from these discussions? How do you make developers be super-productive on Kubernetes? Based on lessons gleaned from both large organizations (Netflix, Uber), mid-sized (Yelp, HubSpot), and small, Richard and Rafael discuss the key steps these organizations took to optimize their developers’ productivity as they migrated to Kubernetes.
Service Discovery and Registration in a Microservices ArchitecturePLUMgrid
Microservices, Service Discovery and Registration have been heading towards the peak of inflated expectations on the Gartner Hype cycle for over the last year or so, but there has often been a lack of clarity as to what these are, why are they needed or how to implement them well.
Service discovery and registration are key components of most distributed systems and service oriented architectures. In this session we will talk about what, why and how of service registration and discovery in distributed systems in general and OpenStack in particular.
We will talk about some of the technologies that address this challenge like Zookeeper, Etcd, Consul, Mesos-DNS, Minuteman, SkyDNS, SmartStack or Eureka. We will also address how these technologies as well as existing OpenStack projects can be used to solve this problem inside OpenStack environments.
Exploring the problem of Microservices communication and how both Kafka and Service Mesh solutions address it. We then look at some approaches for combining both.
MoP(MQTT on Pulsar) - a Powerful Tool for Apache Pulsar in IoT - Pulsar Summi...StreamNative
MQTT (Message Queuing Telemetry Transport,) is a message protocol based on the pub/sub model with the advantages of compact message structure, low resource consumption, and high efficiency, which is suitable for IoT applications with low bandwidth and unstable network environments.
This session will introduce MQTT on Pulsar, which allows developers users of MQTT transport protocol to use Apache Pulsar. I will share the architecture, principles and future planning of MoP, to help you understand Apache Pulsar's capabilities and practices in the IoT industry.
Monitoring Highly Dynamic and Distributed Systems with NGINX AmplifyNGINX, Inc.
On-demand webinar: nginx.com/resources/webinars/monitoring-highly-dynamic-distributed-services-nginx-amplify
In this webinar, we describe the challenges of monitoring highly dynamic and distributed systems, and show how NGINX Amplify can help.
Cloud services, containers, and microservices provide flexibility of deployment, but conventional monitoring tools can't always keep up with rapidly changing systems. NGINX Amplify helps you overcome challenges in collecting logs and metrics and acting on the results.
Join us in this webinar to discover:
- The specific characteristics of distributed systems, immutable infrastructure, and systems that use a microservices architecture.
- Why NGINX and NGINX Plus are the go-to application delivery solutions with popular with users of container technologies such as Docker and cloud technologies such as AWS.
- What special challenges you may find in monitoring and managing containerized, distributed, and microservices-based systems.
- How NGINX Amplify overcomes monitoring and management challenges.
Observability beyond logging for Java MicroservicesLuke Marsden
This talk covers the fundamentals of observability for modern microservices: Logging, Monitoring, Tracing & Visualization. In terms of monitoring, Prometheus is shown with example client code in Java; for tracing, OpenTracing with Zipkin is given as an example; for visualization, Weave Scope is given as an example.
Developing Realtime Data Pipelines With Apache KafkaJoe Stein
Developing Realtime Data Pipelines With Apache Kafka. Apache Kafka is publish-subscribe messaging rethought as a distributed commit log. A single Kafka broker can handle hundreds of megabytes of reads and writes per second from thousands of clients. Kafka is designed to allow a single cluster to serve as the central data backbone for a large organization. It can be elastically and transparently expanded without downtime. Data streams are partitioned and spread over a cluster of machines to allow data streams larger than the capability of any single machine and to allow clusters of co-ordinated consumers. Messages are persisted on disk and replicated within the cluster to prevent data loss. Each broker can handle terabytes of messages without performance impact. Kafka has a modern cluster-centric design that offers strong durability and fault-tolerance guarantees.
Micro on NATS - Microservices with MessagingApcera
This is a talk given by Asim Aslam at the NATS London Meetup on May 10th, 2016. It explains what Micro is (Microservices toolkit), and how it uses NATS - a lightweight high performance open source messaging system for microservices, cloud native, and IoT networks written in Golang.
You can learn more about NATS at http://www.nats.io
You can learn more about Micro at https://micro.mu/
How and why we got Prometheus working with Docker SwarmLuke Marsden
This talk tells the tale of how Docker, Weaveworks and Container Solutions collaborated to get Prometheus working dynamically with Docker Swarm. Luke Marsden and Justin Cormack work together to iterate on a design, throw one away, and then go to the pub while our friends at Container Solutions made it work.
There is a renaissance underway in the messaging space. Due to the demands of IoT networks, cloud native apps, and microservices developers are looking for simple, fast, messaging systems. This is a sharp contrast to how traditional messaging was done.
This webinar will cover:
- The basics of messaging patterns
- What makes NATS unique
- Using a demo inspired by Pokemon Go as an example
Webinar Slides: Real time Recommendations with Redis, Java and WebsocketsRedis Labs
WebSockets connect the browser to your app server. But what if the processing happens on some other server? In that case you need to connect the worker process to the app process via a messaging system. After experimenting with RabbitMQ, we settled on Redis as a great pub sub and a caching system.
In this webinar you will learn:
* How to use Java, Spring, and Redis ( spring-websockets and spring-data-redis) to power a real time recommendations system
* How many users are currently using your system in real time
By Tom Wilkie, delivered at London Microservices User Group on 2/12/15
The rise of microservice-based applications has had many knock-on effects, not least on the complexity of monitoring your application. Order-of-magnitude increase in the number of moving parts and rate of change of the application require us to reassess traditional monitoring techniques.
In this talk we will discuss some different approaches to monitoring, visualising and tracing containerised, microservices-based applications. We’ll present different techniques to some of the emergent problems, and try not to rant too much.
The wrong assumptions and choices can undermine your move to Kubernetes. Instructions on how to implement and scale Kubernetes abounds. What’s missing from these discussions? How do you make developers be super-productive on Kubernetes? Based on lessons gleaned from both large organizations (Netflix, Uber), mid-sized (Yelp, HubSpot), and small, Richard and Rafael discuss the key steps these organizations took to optimize their developers’ productivity as they migrated to Kubernetes.
Service Discovery and Registration in a Microservices ArchitecturePLUMgrid
Microservices, Service Discovery and Registration have been heading towards the peak of inflated expectations on the Gartner Hype cycle for over the last year or so, but there has often been a lack of clarity as to what these are, why are they needed or how to implement them well.
Service discovery and registration are key components of most distributed systems and service oriented architectures. In this session we will talk about what, why and how of service registration and discovery in distributed systems in general and OpenStack in particular.
We will talk about some of the technologies that address this challenge like Zookeeper, Etcd, Consul, Mesos-DNS, Minuteman, SkyDNS, SmartStack or Eureka. We will also address how these technologies as well as existing OpenStack projects can be used to solve this problem inside OpenStack environments.
Exploring the problem of Microservices communication and how both Kafka and Service Mesh solutions address it. We then look at some approaches for combining both.
MoP(MQTT on Pulsar) - a Powerful Tool for Apache Pulsar in IoT - Pulsar Summi...StreamNative
MQTT (Message Queuing Telemetry Transport,) is a message protocol based on the pub/sub model with the advantages of compact message structure, low resource consumption, and high efficiency, which is suitable for IoT applications with low bandwidth and unstable network environments.
This session will introduce MQTT on Pulsar, which allows developers users of MQTT transport protocol to use Apache Pulsar. I will share the architecture, principles and future planning of MoP, to help you understand Apache Pulsar's capabilities and practices in the IoT industry.
Monitoring Highly Dynamic and Distributed Systems with NGINX AmplifyNGINX, Inc.
On-demand webinar: nginx.com/resources/webinars/monitoring-highly-dynamic-distributed-services-nginx-amplify
In this webinar, we describe the challenges of monitoring highly dynamic and distributed systems, and show how NGINX Amplify can help.
Cloud services, containers, and microservices provide flexibility of deployment, but conventional monitoring tools can't always keep up with rapidly changing systems. NGINX Amplify helps you overcome challenges in collecting logs and metrics and acting on the results.
Join us in this webinar to discover:
- The specific characteristics of distributed systems, immutable infrastructure, and systems that use a microservices architecture.
- Why NGINX and NGINX Plus are the go-to application delivery solutions with popular with users of container technologies such as Docker and cloud technologies such as AWS.
- What special challenges you may find in monitoring and managing containerized, distributed, and microservices-based systems.
- How NGINX Amplify overcomes monitoring and management challenges.
How does the Facebook Messenger app achieve phone-to-phone messaging latency in the order of milliseconds instead of seconds? Answer: It uses the MQTT protocol. And so can you.
In this session we look at the MQTT protocol and explain why it in many cases is a much better choice than HTTP or push notification for your mobile communication needs. Using the MQTT protocol your mobile app can achieve secure, reliable two-way communication without killing battery or wasting precious bandwidth. And it’s open source!
Scale changes everything. Number of connections and destinations went from dozen to thousands, number of messages increased by order of magnitude. What once was quite adequate for enterprise messaging can't scale to support "Internet of Things". We need new protocols, patterns and architectures to support this new world. This session will start with basic introduction to the concept of Internet of things. Next it will discuss general technical challenges involved with the concept and explain why it is becoming mainstream now. Now we're ready to start talking about solutions. We will introduce some messaging patterns (like telemetry and command/control) and protocols (such as MQTT and AMQP) used in these scenarios. Finally we will see how Apache ActiveMQ is gearing up for this race. We will show tips for horizontal and vertical scaling of the broker, related projects that can help with deployments and what the future development road map looks like.
Application layer Security in IoT: A SurveyAdeel Ahmed
Internet of Things (IoT) is the future as we are
advancing towards an era of intelligent ambiance where daily
life objects will be communicating to each other for the sake of
convenience in our lives. But the comfort as a result of technology
demands certain measures for the safety of these devices from
wrong hands. The issue of security remains hot as we step further
in this vast area of technological advancement since it can directly
influence one’s personal security. Different techniques have been
adopted to incorporate security in IoT communication stack
for the purpose of confidentiality, identification, data integrity,
authentication, authorization and non-repudiation which are
the fundamental security traits worth considering. This paper
discusses the different application layer protocols by comparing
them on the basis of these traits.
IAB-5039 : MQTT: A Protocol for the Internet of Things (InterConnect 2015)PeterNiblett
MQTT is a simple, event-driven messaging protocol designed for use in Internet of Things and mobile applications. It's implemented in IBM MessageSight and MQ, and it is the protocol used by the IBM Internet of Things Foundation. You will hear it mentioned in several of the talks at this conference; and, as it recently became an official standard and is being used more and more in the world at large, you may have heard about it in the press as well. Come along to this unashamedly technical session to learn about what the protocol actually does, and how to program to it in Java, C or JavaScript.
(Revised from 2014 presentation: Session 2640 Introduction to the iot protocol, mqtt)
MQTT stands for MQ Telemetry Transport.
1. Publish/subscribe.
2. Constrained devices and low-bandwidth, high-latency or unreliable networks.
3. Minimise network bandwidth and device resource requirements whilst also attempting to ensure reliability and some degree of assurance of delivery.
4. Ideal for M2M and IoT
constrained application protocol(CoAP) is a specialized web transfer protocol for use with constrained networks in internet of things and constrained devices such as microcontrollers.
Consuming ASP.net API With Websockets — Maayan Glikser500Tech
We will talk about using websockets as our primary method for consuming APIs and show the advantages and disadvantages of websockets over AJAX requests and how can we use them with ASP.NET Web API.
We will talk about using websockets as our primary method for consuming APIs and show the advantages and disadvantages of websockets over AJAX requests and how can we use them with ASP.NET Web API.
Watch the full lecture on YouTube: https://www.youtube.com/watch?v=8Zf4zTatQYA&list=PLDUzG2yLXrU4Lz33ZzSdHyfqdHJ8Zum5A
In this talk Gavin will cover AMQP in the context of its use in RabbitMQ with a premise that if you don't fully understand AMQP, you don't understand RabbitMQ. Gavin will discuss the by-directional RPC behaviour, connections, channels, objects, methods, and properties.
--
The first RabbitMQ Summit connected RabbitMQ users and developers from around the world in London on November 12, 2018. Learn what's happening in and around RabbitMQ, and how top companies utilize RabbitMQ to power their services.
https://www.rabbitmqsummit.com
RabbitMQ Summit was organized by:
- Erlang Solutions, offering world-leading RabbitMQ Consultancy, Support, Health Checks & Tuning solutions https://www.erlang-solutions.com/
- CloudAMQP, offering fully managed RabbitMQ clusters https://www.cloudamqp.com
RabbitMQ Summit 2018 was sponsored by the following companies.
Platinum sponsors:
Pivotal
LShift
Gold sponors:
Trifork
AWS
Silver sponsor:
Cogin Queue Explorer
Introduce the basic concept of load-balancing, common implementations of load-balancing and the detail fo kubernetes service. In the last, demonstrate how to modify the linux iptable kernel module to fulfill the layer-7 load-balcning for kubernetes
MQTT is an alternative lightweight and highly reliable protocol compared to the HTTP.
In these series of slides I reiterate the strengths of the MQTT protocol.
Stephen Nicolas shares pretty exciting data on MQTT-HTTP comparison http://stephendnicholas.com/archives/1217
Similar to ThingMonk 2014: How To Improve On MQTT 3.1.1 (20)
Biological networks like cells, neurons, and ant colonies have a lot in common with distributed systems, but they have even more in common with sensor networks and heterogeneous home automation systems. They all have to deal with distributed consensus and self-organization problems, but biological and sensor networks have to deal with downright hostile nodes. In this presentation are a couple examples of how we can learn from biology to build a better Internet of Things.
Why HTTP Won't Work For The Internet of Thingskellogh
Introduction to telemetry data and why HTTP isn't a great fit for the problem. Also introduces MQTT and MQTT-SN as better solutions for telemetry data and also introduces CoAP.
Multi-cluster Kubernetes Networking- Patterns, Projects and GuidelinesSanjeev Rampal
Talk presented at Kubernetes Community Day, New York, May 2024.
Technical summary of Multi-Cluster Kubernetes Networking architectures with focus on 4 key topics.
1) Key patterns for Multi-cluster architectures
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.
APNIC Foundation, presented by Ellisha Heppner at the PNG DNS Forum 2024APNIC
Ellisha Heppner, Grant Management Lead, presented an update on APNIC Foundation to the PNG DNS Forum held from 6 to 10 May, 2024 in Port Moresby, Papua New Guinea.
# 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.
Bridging the Digital Gap Brad Spiegel Macon, GA Initiative.pptxBrad Spiegel Macon GA
Brad Spiegel Macon GA’s journey exemplifies the profound impact that one individual can have on their community. Through his unwavering dedication to digital inclusion, he’s not only bridging the gap in Macon but also setting an example for others to follow.
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!
MQTT was created in 1999 when “scaling” meant “scaling vertically”. MQTT scales great vertically, but lots of issues when scaling horizontally.
MQTT works great when used as a funnel protocol, piping data into a more appropriate mechanism for intra-cloud communication.
Still doesn’t do a great job of catering to constrained sensors/actuators
Uptime – inconsistent perception of “available” between client and broker. The broker may be available but not accessible due to stale DNS entries (assuming DNS load balancing)
Exactly-once – More about this on next slides
Security– Infinite topics can be stuffed with retained messages, causing possible DoS. Lack of proper errors makes it difficult to communicate authorization and rate-limits.
Provenance – Either end-to-end security (and give up pub-sub features) or use a hacky topic-level ACL implementation.
Error handling – Can’t communicate rate limits, authorization errors, message size errors, etc.
2-byte identifier needs to be unique across cluster, not big enough
Takes client failures into account, but mostly ignores server failures and auto-failover
