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
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
MQTT - A practical protocol for the Internet of ThingsBryan Boyd
In today’s mobile world, the volume of connected devices and data is growing at a rapid pace. As more and more “things” become part of the Internet (refrigerators, pacemakers, cows?), the importance of scalable, reliable and efficient messaging becomes paramount. In this talk we will dive into MQTT: a lightweight, open standard publish/subscribe protocol for rapid messaging between “things”.
MQTT is simple to understand, yet robust enough to support interactions between millions of devices and users. MQTT is being used in connected car applications, mobile banking, Facebook Messenger, and many things in between. In this talk you will learn all about the protocol (in 10 minutes!) and see some of its applications: live-tracking, gaming, and more. We’ll walk through designing an MQTT-based API for a ride-share mobile application, and discuss how MQTT and REST APIs can complement each other.
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
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
MQTT - A practical protocol for the Internet of ThingsBryan Boyd
In today’s mobile world, the volume of connected devices and data is growing at a rapid pace. As more and more “things” become part of the Internet (refrigerators, pacemakers, cows?), the importance of scalable, reliable and efficient messaging becomes paramount. In this talk we will dive into MQTT: a lightweight, open standard publish/subscribe protocol for rapid messaging between “things”.
MQTT is simple to understand, yet robust enough to support interactions between millions of devices and users. MQTT is being used in connected car applications, mobile banking, Facebook Messenger, and many things in between. In this talk you will learn all about the protocol (in 10 minutes!) and see some of its applications: live-tracking, gaming, and more. We’ll walk through designing an MQTT-based API for a ride-share mobile application, and discuss how MQTT and REST APIs can complement each other.
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!
MQTT - MQ Telemetry Transport for Message QueueingPeter R. Egli
Description of message queueing (MQ) protocol for the transport of telemetry data (MQTT - MQ Telemetry Transport).
MQTT is a protocol designed to fit the needs of Internet of Things scenarios. It is lightweight and efficient, but still affords all the features required for reliable messaging between wireless sensor / actor nodes and applications. MQTT decouples producer and consumer of data (sensors, actors and applications) through message brokers with publish / subscribe message queues called topics. MQTT supports different levels of quality of service thus providing the flexibility to adapt to the different needs of applications.
Further features like will and retain messages make MQTT well suited for sensor network scenarios as well as for lightweight enterprise messaging applications.
Open source implementations like Eclipse paho provide ample code for integrating MQTT in your own applications.
This power point presentation explains the understanding of MQTT for IoT Projects. This report PPT designed and presented by Cumulations Technologies team member (http://www.cumulations.com/)
Message transmission between different devices is important because an IoT appliance has to deliver instruction to a further appliance to manage the system. Compared to the polling protocol
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 is a standardized publish/subscribe Push protocol that was released by IBM in 1999. MQTT was planned to send a data accurately under the long network delay and low- bandwidth network condition.
This is a technical presentation describing two protocols namely MQTT and CoAP for IoT communications. This explains the protocols in conjunction with OSI layers.
ITVoyagers has created presentation which gives overview on following topics
1. MQTT
2. CoAP
Following are the contents.
MQTT
Components
Diagram
Example
Decoupling in Pub/Sub
CoAP
Description
Layers
Types of message
CoAP Header
It will help students in their last minute preparations for exams.
This webinar introduce two important Internet of Things standards: ISO/OASIS MQTT and OGC SensorThings API. MQTT provides an interoperable messaging protocol for IoT, and SensorThings provides an interoperable data model and API for IoT. The combination of the two international standards offers the best IoT interoperability that is open, interoperable, scalable, and rich in features. Recording of the webinar is available here: https://www.youtube.com/playlist?list=PLUSJC5mjKZ9SIASpVJNWKWCSS9hVzjiFA
High level overview of CoAP or Constrained Application Protocol. CoAP is a HTTP like protocol suitable for constrained environment like IoT. CoAP uses HTTP like request response model, status code etc.
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!
MQTT - MQ Telemetry Transport for Message QueueingPeter R. Egli
Description of message queueing (MQ) protocol for the transport of telemetry data (MQTT - MQ Telemetry Transport).
MQTT is a protocol designed to fit the needs of Internet of Things scenarios. It is lightweight and efficient, but still affords all the features required for reliable messaging between wireless sensor / actor nodes and applications. MQTT decouples producer and consumer of data (sensors, actors and applications) through message brokers with publish / subscribe message queues called topics. MQTT supports different levels of quality of service thus providing the flexibility to adapt to the different needs of applications.
Further features like will and retain messages make MQTT well suited for sensor network scenarios as well as for lightweight enterprise messaging applications.
Open source implementations like Eclipse paho provide ample code for integrating MQTT in your own applications.
This power point presentation explains the understanding of MQTT for IoT Projects. This report PPT designed and presented by Cumulations Technologies team member (http://www.cumulations.com/)
Message transmission between different devices is important because an IoT appliance has to deliver instruction to a further appliance to manage the system. Compared to the polling protocol
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 is a standardized publish/subscribe Push protocol that was released by IBM in 1999. MQTT was planned to send a data accurately under the long network delay and low- bandwidth network condition.
This is a technical presentation describing two protocols namely MQTT and CoAP for IoT communications. This explains the protocols in conjunction with OSI layers.
ITVoyagers has created presentation which gives overview on following topics
1. MQTT
2. CoAP
Following are the contents.
MQTT
Components
Diagram
Example
Decoupling in Pub/Sub
CoAP
Description
Layers
Types of message
CoAP Header
It will help students in their last minute preparations for exams.
This webinar introduce two important Internet of Things standards: ISO/OASIS MQTT and OGC SensorThings API. MQTT provides an interoperable messaging protocol for IoT, and SensorThings provides an interoperable data model and API for IoT. The combination of the two international standards offers the best IoT interoperability that is open, interoperable, scalable, and rich in features. Recording of the webinar is available here: https://www.youtube.com/playlist?list=PLUSJC5mjKZ9SIASpVJNWKWCSS9hVzjiFA
High level overview of CoAP or Constrained Application Protocol. CoAP is a HTTP like protocol suitable for constrained environment like IoT. CoAP uses HTTP like request response model, status code etc.
This paper has presented an evaluation of the two widely accepted and emerging messaging protocols for IoT systems: MQTT, and CoAP. MQTT and CoAP are rapidly emerging as leading lightweight messaging protocols for the booming IoT market. Each protocol offers unique benefits, and each poses challenges and tradeoffs. Both protocols are being implemented for mesh-networking applications, in which lightweight end nodes are a necessary aspect of almost every network, and for gateway bridging logic to allow inter-standard communication.
How MQTT 5 Makes Difficult IoT Use Cases PossibleHiveMQ
MQTT 5 is the most recent version of the MQTT specification. It includes many new features that are very useful for implementing specific IoT use cases. For example, Vehicle to Anything (V2X), Connected Cars, Smart Toll Booth, etc.
In this webinar, Florian Raschbichler, Head of Support at HiveMQ, covered some of the main features of MQTT 5, such as:
- Topic Aliases
- Shared Subscriptions
- Request / Response Pattern
- User Properties
- Session and Message Expiry
- Payload Type Descriptors
- Enhanced Authentication
Florian also illustrated some of the real-life IoT use cases that can be solved using these MQTT 5 features.
About the Speaker.
Florian Raschbichler serves as the head of the HiveMQ support team with years of first-hand experience overcoming challenges in achieving reliable, scalable, and secure IoT messaging for enterprise customers.
To watch the webinar recording:
https://www.hivemq.com/webinars/how-mqtt-5-makes-difficult-iot-use-cases-possible/
Florian Raschbichler, Head of Support at HiveMQ, will cover:
➡️ The main features of #MQTT5
➡️ Real-life use cases around these MQTT 5 features
➡️ The importance of adopting MQTT 5 #IoT protocol in an ever-expanding connected world!
MQTT 5 - Why You Need It and Potential PitfallsHiveMQ
This webinar covers everything you need to know about MQTT 5.0, the latest release of the lightweight IoT messaging protocol. What are the new features of MQTT 5 and why do you need them for your IoT project? You will also see the common pitfalls and learn how existing MQTT deployments can be upgraded seamlessly to the new standard.
The speaker is Dominik Obermaier, CTO and co-founder of HiveMQ.
He is a member of the OASIS Technical Committee and is part of the standardization committee for MQTT 3.1.1 and MQTT 5. He is the co-author of the book 'The Technical Foundations of IoT' and a frequent speaker on IoT, MQTT, and messaging.
To watch the webinar recording: https://www.hivemq.com/webinars/mqtt-5-why-you-need-it-and-potential-pitfalls/
IoT is becoming more pervasive, and it is a crucial part of digital transformation initiatives across industries. Knowing the essential building blocks can help you in your journey.
The first step towards this journey is learning about the de-facto standard for IoT messaging, MQTT, which helps reliably connect devices and efficiently move data bidirectionally between them even in unreliable networks.
Here're the webinar slides where Mary Grygleski walks you through MQTT history, some of the key features of this lightweight IoT protocol, and how it can be used for several IoT and IIoT use cases.
About the Speaker.
Mary Grygleski is the Senior Developer Advocate at HiveMQ. Based out of Chicago, Mary is a Java Champion and President and Executive Board Member of the Chicago Java Users Group (CJUG). She is also co-organizers for the Data, Cloud and AI In Chicago, Chicago Cloud, and IBM Cloud Chicago meetup groups. She has extensive experience in product and application design, development, integration, and deployment experience, and specializes in Reactive Java, Open Source, and cloud-enabled distributed systems.
To watch the webinar recording:
https://www.hivemq.com/webinars/back-to-the-basics-an-introduction-to-mqtt/
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.
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.
# 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
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!
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.
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.
2. MQTelemetry Transport
● Simple, lightweight messaging protocol
● For constrained devices and low-bandwidth,
high-latency or unreliable networks.
● Publish/Subscribe Messaging
● Minimise network bandwidth and device resource requirements
● Ideal for
○ “Internet of Things” and “machine-to-machine” (M2M) devices
○ Mobile applications where bandwidth and battery power are at
a premium.
3. MQTT a Standard?
● MQTT was invented by Dr Andy Stanford-Clark of IBM, and Arlen
Nipper of Arcom (now Eurotech), in 1999.
● MQTT is in the process of undergoing standardisation at OASIS.
● The protocol specification is openly published and royalty-free
● TCP/IP port 1883 is reserved with IANA for MQTT
● TCP/IP port 8883 is also reserved for MQTT over SSL/Web
4. MQTT AKA...
● “SCADA protocol”
● “MQ Integrator SCADA Device Protocol” (MQIsdp)
● “WebSphere MQTT” (WMQTT)
This is a product from IBM which implements the
MQTT protocol in a very scalable manner and
which interoperates directly with the WebSphere
MQ family of products.
5. MQTT Security
● Protocol defined message for username/pw
● Can use SSL for transport
○ Significant resource overhead for SSL
● MQTT Does not deal directly with security
it is a protocol that can be transported over a
secure connection as necessary.
6. Broker/Client - Pub/Sub
Broker -
Server
Client
(IoT device)
Client
(IoT device)
Data Store AnalyticsApplication
Publish
M
sg
Subscribed Msg
7. Broker/Client - Pub/Sub
MQTT Broker
● Accepts client connections, TCP/websocket
● Receives messages sent with a “topic”
● Receives subscription request for a “topic”
● Forwards to subscribers for their “topic”
● Has some QOS and retention ability
9. MQTT Message - Control part
14 types of MQTT packets.
Connection Related
Connect, Connack, Disconnect, PingREQ, PingRESP
Publish - sending a message
Publish, PubACK, PubREC, PubREL, PubCOMP
Subscribe - Asking to get messages by topic
Subscribe, SubACK, Unsubscribe, UnSubAck
10. Topics - Naming the Payloads
Published messages have a topic.
UTF8/Binary bytes, sized in protocol.
Treat as a string name.
Use directory like hierarchical structure
uchobby/iot1/<deviceID>/<topic>
Needs to be unique across all clients of a broker
11. Payload - the data
UTF8/Binary bytes, sized in protocol.
Binary structures and/or string data is fine
Data size is encoded using a variable length scheme
0-127 in one byte, 2>16K 3>2M 4>270M
12. Control - Quality of Service (QoS)
How important is the message?
QoS.0 At most once delivery
No Ack or retry, once or not at all
QoS.1 At least once
Ack and retry - for both the pub and sub.
QoS.2 Exactly once
Lots of handshaking to insure delivery once.
13. Control - Retain Flag
Published Messages can set a Retain Flag
● Topic is “Retained” at the broker
● Subscribers to the “Retained” topic receive the
“Retained” message automatically
Great way to handle device config data.
Control point sends device config data with “retain”
Device subscribes at power up and gets it’s config.
14. Control - Last Will and Testament
Notification of loss of a client.
Client sets its final message
Other Clients receive this MSG as notice
15. Setting up for MQTT - Broker
Free Brokers - Eclipse.org, HiveMQ
Software: Mosquitto, RabbitMQ, others...
Roll your own using Node.js with MQTT.js in
10 lines of code
16. Setting up for MQTT - Client Side
Client - Device and application side
Web - Phao - stupid easy
Device - Arduino, ESP8266, everything
17. Development Tools - Debug - Mon...
HiveMQ - Web based client.
http://www.hivemq.com/demos/websocket-client/?
MQTT Spy
http://kamilfb.github.io/mqtt-spy/
MQTT FX
http://mqttfx.jfx4ee.org/
