Part 5 : Sharing resources, security principles and protocolsOlivier Bonaventure
Slides supporting the "Computer Networking: Principles, Protocols and Practice" ebook. The slides can be freely reused to teach an undergraduate computer networking class using the open-source ebook.
Part 5 : Sharing resources, security principles and protocolsOlivier Bonaventure
Slides supporting the "Computer Networking: Principles, Protocols and Practice" ebook. The slides can be freely reused to teach an undergraduate computer networking class using the open-source ebook.
High Secure Password Authentication SystemAkhil Nadh PC
Muti Server Password Authentication system. Split the password and store it in multiple server for increasing the degree of security of the data. The technique is used in storing the login information securely
Teach your (micro)services talk Protocol Buffers with gRPC.Mihai Iachimovschi
When it comes to microservices, there’re a lot of things worth keeping in mind. Designing such fine-grained, loosely-coupled services requires paying lots of attention to various patterns and approaches to make them future-proof. A very important thing to consider, is the way those services will communicate with each-other in production. Usually the communication is done over the network using a technology-agnostic protocol. At the next level the service should provide an API for its friend services. Then, the data should be serialized without altering its meaning and transferred to the picked endpoint.
Nowadays, exposing a REST API that operates with JSON over plain HTTP is a usual way to lay the grounds of communication for the services. It is easy to accomplish, but it has some drawbacks. First of all, JSON is a human readable format, and it’s not as other serialization approaches. Also, with JSON it’s not possible to natively enforce the schema, and evolving the API may be painful.
This talk’s purpose is to describe in deep detail the benefits of protocol buffers, that offer us for free an easy way to define the API messages in the proto format, and then reuse them inside different services, without even being locked to use the same programming language for them. Moreover, with gRPC we can define the API’s endpoints easily in the same proto format. All these offer us a robust schema enforcement, compact binary serialization, and easy backward compatibility.
Slides supporting the "Computer Networking: Principles, Protocols and Practice" ebook. The slides can be freely reused to teach an undergraduate computer networking class using the open-source ebook.
Beyond TCP: The evolution of Internet transport protocolsOlivier Bonaventure
The transport layer is one of the key layers of the Internet protocol stack. It enrichs the network layer service to make it suitable for applications. Almost 40 years after its initial design, TCP remains the most widely used transport protocol. In the early 2000s, SCTP was proposed as an alternative to TCP. Despite a clean and extensible design and many useful features, it did not reach wide deployment. This failure is mainly caused by middleboxes. We'll describe their operation and explain why Multipath TCP, which is a backward compatible evolution to TCP, has better chances of being deployed. We'll explain the main principles behind Multipath TCP and the lessons that can be drawn from its design. We'll then analyse why Internet giants like Google and Microsoft now consider application-layer solutions like QUIC to replace standard protocols like TCP.
Fourth lesson of the Computer Networking class. Covers reliable transport principles and the introduction for sharing resources (MAC and congestion control)
Slides supporting the "Computer Networking: Principles, Protocols and Practice" ebook. The slides can be freely reused to teach an undergraduate computer networking class using the open-source ebook.
High Secure Password Authentication SystemAkhil Nadh PC
Muti Server Password Authentication system. Split the password and store it in multiple server for increasing the degree of security of the data. The technique is used in storing the login information securely
Teach your (micro)services talk Protocol Buffers with gRPC.Mihai Iachimovschi
When it comes to microservices, there’re a lot of things worth keeping in mind. Designing such fine-grained, loosely-coupled services requires paying lots of attention to various patterns and approaches to make them future-proof. A very important thing to consider, is the way those services will communicate with each-other in production. Usually the communication is done over the network using a technology-agnostic protocol. At the next level the service should provide an API for its friend services. Then, the data should be serialized without altering its meaning and transferred to the picked endpoint.
Nowadays, exposing a REST API that operates with JSON over plain HTTP is a usual way to lay the grounds of communication for the services. It is easy to accomplish, but it has some drawbacks. First of all, JSON is a human readable format, and it’s not as other serialization approaches. Also, with JSON it’s not possible to natively enforce the schema, and evolving the API may be painful.
This talk’s purpose is to describe in deep detail the benefits of protocol buffers, that offer us for free an easy way to define the API messages in the proto format, and then reuse them inside different services, without even being locked to use the same programming language for them. Moreover, with gRPC we can define the API’s endpoints easily in the same proto format. All these offer us a robust schema enforcement, compact binary serialization, and easy backward compatibility.
Slides supporting the "Computer Networking: Principles, Protocols and Practice" ebook. The slides can be freely reused to teach an undergraduate computer networking class using the open-source ebook.
Beyond TCP: The evolution of Internet transport protocolsOlivier Bonaventure
The transport layer is one of the key layers of the Internet protocol stack. It enrichs the network layer service to make it suitable for applications. Almost 40 years after its initial design, TCP remains the most widely used transport protocol. In the early 2000s, SCTP was proposed as an alternative to TCP. Despite a clean and extensible design and many useful features, it did not reach wide deployment. This failure is mainly caused by middleboxes. We'll describe their operation and explain why Multipath TCP, which is a backward compatible evolution to TCP, has better chances of being deployed. We'll explain the main principles behind Multipath TCP and the lessons that can be drawn from its design. We'll then analyse why Internet giants like Google and Microsoft now consider application-layer solutions like QUIC to replace standard protocols like TCP.
Fourth lesson of the Computer Networking class. Covers reliable transport principles and the introduction for sharing resources (MAC and congestion control)
Slides supporting the "Computer Networking: Principles, Protocols and Practice" ebook. The slides can be freely reused to teach an undergraduate computer networking class using the open-source ebook.
"What is Data Science?" High School VersionRenee Teate
Talk given to Harrisonburg High School Students about Data and Data Science
Note: some slides had animations in Excel, so unfortunately, the images overlap on the SlideShare version.
Introduction to Data Science Talk Given to Girl Develop It! Central VA members
Note: some slides had animations in Excel, so unfortunately, the images overlap on the SlideShare version.
Becoming a Data Scientist: Advice From My Podcast GuestsRenee Teate
Information and advice about learning data science, from the 17 data scientists & data science learners I have interviewed to date on the Becoming a Data Scientist Podcast, and from me!
Originally presented at PyDataDC conference, 10/9/2016
This Technical Note describes the Message formats used in PathMATE Multi-Process deployments when communicating between any two process instances.
Section 2 provides an overview of the different message protocol layers involved during
transmission defining basic terminology and the basic concepts.
Section 3 describes in the detail the PathMATE Application Messaging Protocol and all supported message formats, as defined for the CPP Transformation Maps in 8.2.0 software releases.
Appendix A lists sources for referenced information for Ethernet and TCPIP protocols.
This Technical Note describes the Message formats used in PathMATE Multi-Process
deployments when communicating between any two process instances.
Section 2 provides an overview of the different message protocol layers involved during
transmission defining basic terminology and the basic concepts.
Section 3 describes in the detail the PathMATE Application Messaging Protocol and all supported message formats, as defined for the CPP Transformation Maps in 8.2.0 software releases.
Appendix A lists sources for referenced information for Ethernet and TCPIP protocols.
Implementation and Design of High Speed FPGA-based Content Addressable Memoryijsrd.com
CAM stands for content addressable memory. It is a special type of computer memory used in very high speed searching application. A CAM is a memory that implements the high speed lookup-table function in a single clock cycle using dedicated comparison circuitry. It is also known as associative memory or associative array although the last term used for a programming data structure. Unlike standard computer memory (RAM) in which user supplies the memory address and the RAM returns the data word stored in that memory address, CAM is designed in such a way that user supplies data word and CAM searches its entire memory to see if that data word stored anywhere in it. If the data word is found, the CAM returns a list of one or more storage address where the word was found. This design coding, simulation, logic synthesis and implementation will be done using various EDA tools.
TRACEBACK OF DOS OVER AUTONOMOUS SYSTEMSIJNSA Journal
Denial of service (DoS) is a significant security threat in open networks such as the Internet. The existing limitations of the Internet protocols and the common availability tools make a DoS attack both effective and easy to launch. There are many different forms of DoS attack and the attack size could be amplified from a single attacker to a distributed attack such as a distributed denial of service (DDoS). IP traceback is one important tool proposed as part of DoS mitigation and a number of traceback techniques have been proposed including probabilistic packet marking (PPM). PPM is a promising technique that can be used to trace the complete path back from a victim to the attacker by encoding of each router's 32-bit IP address in at least one packet of a traffic flow. However, in a network with multiple hops through a number of autonomous systems (AS), as is common with most Internet services, it may be undesirable for every router to contribute to packet marking or for an AS to reveal its internal routing structure. This paper proposes two new efficient autonomous system (AS) traceback techniques to identify the AS of the attacker by probabilistically marking the packets. Traceback on the AS level has a number of advantages including a reduction in the number of bits to be encoded and a reduction in the number of routers that need to participate in the marking. Our results show a better performance comparing to PPM and other techniques.
What a Modern Database Enables_Srini Srinivasan.pdfAerospike, Inc.
Learn about our founding design principles from the Aerospike CTO and Founder, Srini Srinivasan, and how Aerospike avoided tradeoffs other systems seem unable to avoid. Hear about our foundational design centers for leveraging processor, storage, and network advances to the limit, network route + connection model optimization, self-managing clustering capabilities, hyper parallelism, and geo-distributed transaction capabilities - and why they make all the difference for Aerospike customers. Learn how we plan to bring our advantages to bear for building AI/ML applications that are key to the future.
3. Reference: Carzaniga, A., and Wolf, A.L. Forwarding in a content-based network. In SIGCOMM, 163-174, 2003
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19. Project Timelines
Date Tasks Status
April 11th, 2016 Multi-threaded Processor Completed
April 18th, 2016 Multi-core Multi-threaded Processor Completed
April 25th, 2016 RSA Integration with Processor Completed
May 2nd, 2016 Hardware Accelerator Integration with
Processor
Completed
May 5th, 2016 Performance Analysis of the System Completed
