pweb : A Personal Interface to the World Wide Web

Size: px
Start display at page:

Download "pweb : A Personal Interface to the World Wide Web"

Transcription

1 pweb : A Personal Interface to the World Wide Web Presented by Reaz Ahmed School of Computer Science University of Waterloo Joint work with Shihabur Rahman Chowdhury, Alexander Pokluda, Md. Faizul Bari, Raouf Boutaba and Bertrand Mathieu

2 Outline Motivation Technical challenges Architecture Evaluation Summary 2

3 Motivation Advertisement industry Cloud Service Provider? Covert Agencies Internet Access Download Content Upload Content? LAN Web-content Contemporary Web hosting No Direct connection between devices 3

4 Motivation Censorship resistance Broadcast yourself without censorship Access control Define who can access what and when. Content Ownership Add, delete, modify as / when you like Flexibility Restriction on content/service type/format Our goal is to free users from these limitations 4

5 Technical Chellenges Naming: User devices don t have global/unique names Frequent IP change Availability: User devices are not persistent as Internet hosts How to ensure content availability Discovery: How to find a device and its hosted contents? Dynamic content/service hosting: How to generate & serve computationally expensive dynamic web content from low-end user devices? NAT: Usually non-public IP and behind the NAT. 5

6 Design Philosophy Compatibility with current Web technology. Naming: Unique, persistent, DNS compatible names Efficient, scalable name resolution infrastructure Availability: Group by user and replicate Cache popular contents at search/indexing servers Discovery: Open interface for name/content crawlers Dynamic content/service hosting: Light-weight http server w/ dynamic ip updater capability NAT: use STUNT or URL forward 6

7 pweb Architecture Index Search engine keyword name Legend DNS gateway Home Agent Online device User Device group Resolution Home Agent Network DNS Offline device name IP Web client Service 7

8 pweb Naming: Our Stand low latency, scalable, robust and independent naming system compatible with legacy DNS independent of any central naming authority IANA (ICANN/Verisign) Legacy DNS App NR Home Agent Network DNS User unique name within pweb for DNS compatibility

9 Functional Overview nexus.bob uw pwebproject.net Hosting device Bob s HA Any HA DNS gateway Search engine Internet user register update IP & meta-data get device / service info. index Registration Name resolution DHT lookup Crawling DHT lookup Searching Search by keyword content URL DNS lookup Device IP Device IP Service access 9

10 Home Agent Architecture Home Agent Crawler Device Plexus TCP Messaging API HTTP RESTful API Messaging Interface Forwarding Threads Incoming Message Queue Message Processor HTTP Message Processor (Mongoose Web Server) Plexus TCP Message Processor Outgoing Message Queue Message Dispatcher Thread Processing Pending Queue Index Worker Threads Local Storage Plexus Storage API Link Cache Local Name DB 10

11 Crawler Architecture Crawlers & Manager m c c Solr Cloud Web frontend HA Network 11

12 Client Software Web client HTTP Light-weight pweb Server Home Agent HTTP Home-Agent Interface pweb App Other Apps Device H/W Interface Auth. DB End user device 12

13 Results Home Agent Network Performance HA/DNS-GW in 25 PlanetLab Nodes Clients (using Dig) in 30 PlanetLab Nodes 2.5X10 5 unique names, 5X10 5 queries in parallel GeoAwareness : Maxmind GeoIP DB ~28% reduction Name Lookup Efficiency Impact of GeoAwareness 13

14 Results Home Agent Scalability One HA hammered by a micro-benchmarking tool 100ms response time for up to 400 requests/sec Mostly Due to raw file access. Better results with DB 14

15 Results Performance of a single Crawler Synthetic HA network RTT from King Dataset Geographic distribution from World Bank Open Data Max. no. of HA a single crawler can handle at which network size 2 HAs were not polled 15

16 Summary pweb characteristics A hybrid architecture Seamless integration with Web technology Open platform for independent development Other applications: Remote access for Configuration, NAS, IP camera, Sensors, etc. Personal sync and backup solutions VoIP by name: call vs call cell.alice.uw Passive device: NFC tag/qrcode /Barcode for IoT Ongoing project at http: //pwebproject. net 16

17 17

18 Evaluation Scenario Home Agent Network HA/DNS-GW in 25 PlanetLab Nodes Clients (using Dig) in 30 PlanetLab Nodes 2.5X10 5 unique names, 5X10 5 queries in parallel GeoAwareness : Maxmind GeoIP DB Home Agent One HA with varying load Crawler Synthetic HA network RTT from King Dataset Geographic distribution from World Bank Open Data 18

pweb : A Personal Interface to the World Wide Web

pweb : A Personal Interface to the World Wide Web pweb : A Personal Interface to the World Wide Web Reaz Ahmed, Shihabur Rahman Chowdhury, Alexander Pokluda, Md. Faizul Bari, Raouf Boutaba and Bertrand Mathieu David R. Cheriton School of Computer Science,

More information

Ensuring β-availability in P2P Social Networks

Ensuring β-availability in P2P Social Networks Ensuring β-availability in P2P Social Networks Nashid Shahriar, Shihabur R. Chowdhury*, Mahfuza Sharmin**, Reaz Ahmed*, Raouf Boutaba*, and Bertrand Mathieu Dept. of CSE, Bangladesh University of Engineering

More information

Building an Internet-Scale Publish/Subscribe System

Building an Internet-Scale Publish/Subscribe System Building an Internet-Scale Publish/Subscribe System Ian Rose Mema Roussopoulos Peter Pietzuch Rohan Murty Matt Welsh Jonathan Ledlie Imperial College London Peter R. Pietzuch prp@doc.ic.ac.uk Harvard University

More information

Web Crawling. Introduction to Information Retrieval CS 150 Donald J. Patterson

Web Crawling. Introduction to Information Retrieval CS 150 Donald J. Patterson Web Crawling Introduction to Information Retrieval CS 150 Donald J. Patterson Content adapted from Hinrich Schütze http://www.informationretrieval.org Robust Crawling A Robust Crawl Architecture DNS Doc.

More information

CQNCR: Optimal VM Migration Planning in Cloud Data Centers

CQNCR: Optimal VM Migration Planning in Cloud Data Centers CQNCR: Optimal VM Migration Planning in Cloud Data Centers Presented By Md. Faizul Bari PhD Candidate David R. Cheriton School of Computer science University of Waterloo Joint work with Mohamed Faten Zhani,

More information

P2PNS: A Secure Distributed Name Service for P2PSIP

P2PNS: A Secure Distributed Name Service for P2PSIP P2PNS: A Secure Distributed Name Service for P2PSIP Mobile P2P 2008, Hong Kong, China Outline Decentralized VoIP (P2PSIP) Peer-to-Peer name service (P2PNS) Architecture Two-stage name resolution P2PNS

More information

Internet Load Balancing Guide. Peplink Balance Series. Peplink Balance. Internet Load Balancing Solution Guide

Internet Load Balancing Guide. Peplink Balance Series. Peplink Balance. Internet Load Balancing Solution Guide Peplink Balance Internet Load Balancing Solution Guide http://www.peplink.com Copyright 2010 Peplink Internet Load Balancing Instant Improvement to Your Network Introduction Introduction Understanding

More information

IsoStack Highly Efficient Network Processing on Dedicated Cores

IsoStack Highly Efficient Network Processing on Dedicated Cores IsoStack Highly Efficient Network Processing on Dedicated Cores Leah Shalev Eran Borovik, Julian Satran, Muli Ben-Yehuda Outline Motivation IsoStack architecture Prototype TCP/IP over 10GE on a single

More information

Homework 2 assignment for ECE374 Posted: 02/20/15 Due: 02/27/15

Homework 2 assignment for ECE374 Posted: 02/20/15 Due: 02/27/15 ECE374: Homework 2 1 Homework 2 assignment for ECE374 Posted: 02/20/15 Due: 02/27/15 ote: In all written assignments, please show as much of your work as you can. Even if you get a wrong answer, you can

More information

Latest Peer-to-Peer Technologies II Artjom Lind 1

Latest Peer-to-Peer Technologies II Artjom Lind 1 Latest Peer-to-Peer Technologies II 25.11.2009 Artjom Lind 1 Outline Last presentation Intro Peer-to-Peer SIP TCP Traversal Conclusions 25.11.2009 Artjom Lind 2 Last Presentation P2P Systems Structured

More information

Distributed Indexing of the Web Using Migrating Crawlers

Distributed Indexing of the Web Using Migrating Crawlers Distributed Indexing of the Web Using Migrating Crawlers Odysseas Papapetrou cs98po1@cs.ucy.ac.cy Stavros Papastavrou stavrosp@cs.ucy.ac.cy George Samaras cssamara@cs.ucy.ac.cy ABSTRACT Due to the tremendous

More information

Chapter 3: Naming Page 38. Clients in most cases find the Jini lookup services in their scope by IP

Chapter 3: Naming Page 38. Clients in most cases find the Jini lookup services in their scope by IP Discovery Services - Jini Discovery services require more than search facilities: Discovery Clients in most cases find the Jini lookup services in their scope by IP multicast/broadcast Multicast UDP for

More information

Datacenter replication solution with quasardb

Datacenter replication solution with quasardb Datacenter replication solution with quasardb Technical positioning paper April 2017 Release v1.3 www.quasardb.net Contact: sales@quasardb.net Quasardb A datacenter survival guide quasardb INTRODUCTION

More information

CS 347 Parallel and Distributed Data Processing

CS 347 Parallel and Distributed Data Processing CS 347 Parallel and Distributed Data Processing Spring 2016 Notes 12: Distributed Information Retrieval CS 347 Notes 12 2 CS 347 Notes 12 3 CS 347 Notes 12 4 Web Search Engine Crawling Indexing Computing

More information

ITU Kaleidoscope 2016 ICTs for a Sustainable World. DESIGN OF SCALABLE DIRECTORY SERVICE FOR FUTURE IoT APPLICATIONS

ITU Kaleidoscope 2016 ICTs for a Sustainable World. DESIGN OF SCALABLE DIRECTORY SERVICE FOR FUTURE IoT APPLICATIONS ITU Kaleidoscope 2016 ICTs for a Sustainable World DESIGN OF SCALABLE DIRECTORY SERVICE FOR FUTURE IoT APPLICATIONS Ved P. Kafle, Yusuke Fukushima, Pedro Martinez-Julia, and Hiroaki Harai National Institute

More information

IOTIVITY INTRODUCTION

IOTIVITY INTRODUCTION IOTIVITY INTRODUCTION Martin Hsu Intel Open Source Technology Center 1 Content may contain references, logos, trade or service marks that are the property of their respective owners. Agenda Overview Architecture

More information

CS 347 Parallel and Distributed Data Processing

CS 347 Parallel and Distributed Data Processing CS 347 Parallel and Distributed Data Processing Spring 2016 Notes 12: Distributed Information Retrieval CS 347 Notes 12 2 CS 347 Notes 12 3 CS 347 Notes 12 4 CS 347 Notes 12 5 Web Search Engine Crawling

More information

Distributed Meta-data Servers: Architecture and Design. Sarah Sharafkandi David H.C. Du DISC

Distributed Meta-data Servers: Architecture and Design. Sarah Sharafkandi David H.C. Du DISC Distributed Meta-data Servers: Architecture and Design Sarah Sharafkandi David H.C. Du DISC 5/22/07 1 Outline Meta-Data Server (MDS) functions Why a distributed and global Architecture? Problem description

More information

Scalable Protocol Design. Supporting Millions of Simultaneously-connected Devices

Scalable Protocol Design. Supporting Millions of Simultaneously-connected Devices Scalable Protocol Design Supporting Millions of Simultaneously-connected Devices OpenDOF Project Background 2 Open-source project, royalty-free Founded by Panasonic in 2015 A complete IoT framework over

More information

Creating a Recommender System. An Elasticsearch & Apache Spark approach

Creating a Recommender System. An Elasticsearch & Apache Spark approach Creating a Recommender System An Elasticsearch & Apache Spark approach My Profile SKILLS Álvaro Santos Andrés Big Data & Analytics Solution Architect in Ericsson with more than 12 years of experience focused

More information

CSE 5306 Distributed Systems

CSE 5306 Distributed Systems CSE 5306 Distributed Systems Naming Jia Rao http://ranger.uta.edu/~jrao/ 1 Naming Names play a critical role in all computer systems To access resources, uniquely identify entities, or refer to locations

More information

Telecommunication Services Engineering Lab. Roch H. Glitho

Telecommunication Services Engineering Lab. Roch H. Glitho 1 Support Infrastructure Support infrastructure for application layer Why? Re-usability across application layer protocols Modularity (i.e. separation between application layer protocol specification /

More information

Making Gnutella-like P2P Systems Scalable

Making Gnutella-like P2P Systems Scalable Making Gnutella-like P2P Systems Scalable Y. Chawathe, S. Ratnasamy, L. Breslau, N. Lanham, S. Shenker Presented by: Herman Li Mar 2, 2005 Outline What are peer-to-peer (P2P) systems? Early P2P systems

More information

Lab 1: Creating Secure Architectures (Revision)

Lab 1: Creating Secure Architectures (Revision) Lab 1: Creating Secure Architectures (Revision) A Challenge Our challenge is to setup MyBank Incorp, where each of you will be allocated a network and hosts to configure and get on-line (Figure 1). For

More information

DISTRIBUTED SYSTEMS [COMP9243] Lecture 8a: Cloud Computing WHAT IS CLOUD COMPUTING? 2. Slide 3. Slide 1. Why is it called Cloud?

DISTRIBUTED SYSTEMS [COMP9243] Lecture 8a: Cloud Computing WHAT IS CLOUD COMPUTING? 2. Slide 3. Slide 1. Why is it called Cloud? DISTRIBUTED SYSTEMS [COMP9243] Lecture 8a: Cloud Computing Slide 1 Slide 3 ➀ What is Cloud Computing? ➁ X as a Service ➂ Key Challenges ➃ Developing for the Cloud Why is it called Cloud? services provided

More information

escience in the Cloud: A MODIS Satellite Data Reprojection and Reduction Pipeline in the Windows

escience in the Cloud: A MODIS Satellite Data Reprojection and Reduction Pipeline in the Windows escience in the Cloud: A MODIS Satellite Data Reprojection and Reduction Pipeline in the Windows Jie Li1, Deb Agarwal2, Azure Marty Platform Humphrey1, Keith Jackson2, Catharine van Ingen3, Youngryel Ryu4

More information

CSE 5306 Distributed Systems. Naming

CSE 5306 Distributed Systems. Naming CSE 5306 Distributed Systems Naming 1 Naming Names play a critical role in all computer systems To access resources, uniquely identify entities, or refer to locations To access an entity, you have resolve

More information

Floodless in SEATTLE: A Scalable Ethernet Architecture for Large Enterprises

Floodless in SEATTLE: A Scalable Ethernet Architecture for Large Enterprises Floodless in SEATTLE: A Scalable Ethernet Architecture for Large Enterprises Full paper available at http://www.cs.princeton.edu/~chkim Changhoon Kim, Matthew Caesar, and Jennifer Rexford Outline of Today

More information

CHAPTER 4 PROPOSED ARCHITECTURE FOR INCREMENTAL PARALLEL WEBCRAWLER

CHAPTER 4 PROPOSED ARCHITECTURE FOR INCREMENTAL PARALLEL WEBCRAWLER CHAPTER 4 PROPOSED ARCHITECTURE FOR INCREMENTAL PARALLEL WEBCRAWLER 4.1 INTRODUCTION In 1994, the World Wide Web Worm (WWWW), one of the first web search engines had an index of 110,000 web pages [2] but

More information

Lab 2: Creating Secure Architectures

Lab 2: Creating Secure Architectures Lab 2: Creating Secure Architectures A Challenge Our challenge is to setup MyBank Incorp, where each of you will be allocated a network and hosts to configure and get on-line (Figure 1). For this you will

More information

Global Data Plane. The Cloud is not enough: Saving IoT from the Cloud & Toward a Global Data Infrastructure PRESENTED BY MEGHNA BAIJAL

Global Data Plane. The Cloud is not enough: Saving IoT from the Cloud & Toward a Global Data Infrastructure PRESENTED BY MEGHNA BAIJAL Global Data Plane The Cloud is not enough: Saving IoT from the Cloud & Toward a Global Data Infrastructure PRESENTED BY MEGHNA BAIJAL Why is the Cloud Not Enough? Currently, peripherals communicate directly

More information

Network Services, Cloud Computing and Virtualization

Network Services, Cloud Computing and Virtualization Network Services, Cloud Computing and Virtualization Client Side Virtualization Purpose of virtual machines Resource requirements Emulator requirements Security requirements Network requirements Hypervisor

More information

Loosely coupled: asynchronous processing, decoupling of tiers/components Fan-out the application tiers to support the workload Use cache for data and content Reduce number of requests if possible Batch

More information

The Lion of storage systems

The Lion of storage systems The Lion of storage systems Rakuten. Inc, Yosuke Hara Mar 21, 2013 1 The Lion of storage systems http://www.leofs.org LeoFS v0.14.0 was released! 2 Table of Contents 1. Motivation 2. Overview & Inside

More information

RFID in Internet of things: from the static to the real-time

RFID in Internet of things: from the static to the real-time RFID in Internet of things: from the static to the real-time ETSI Workshop on RFID and The Internet Of Things, 3rd and 4th December 007 Fabio Forno, Ph. D. Mikhail Simonov Introduction Outline Complexity

More information

Next-Generation Cloud Platform

Next-Generation Cloud Platform Next-Generation Cloud Platform Jangwoo Kim Jun 24, 2013 E-mail: jangwoo@postech.ac.kr High Performance Computing Lab Department of Computer Science & Engineering Pohang University of Science and Technology

More information

Recommendations for Transport Port Uses

Recommendations for Transport Port Uses Recommendations for Transport Port Uses draft-ietf-tsvwg-port-use-00 IETF 85 - Atlanta Joe Touch, USC/ISI As presented by Gorry Fairhurst 13:22 1 Purpose BCP advice to protocol designers Encourage port

More information

Data Access and Analysis with Distributed, Federated Data Servers in climateprediction.net

Data Access and Analysis with Distributed, Federated Data Servers in climateprediction.net Data Access and Analysis with Distributed, Federated Data Servers in climateprediction.net Neil Massey 1 neil.massey@comlab.ox.ac.uk Tolu Aina 2, Myles Allen 2, Carl Christensen 1, David Frame 2, Daniel

More information

Feature Comparison Checklist

Feature Comparison Checklist Feature Comparison Checklist We invite you to use this checklist to help guide your team in identifying your mobile forms requirements. This checklist also provides an easy way to compare the Formotus

More information

CSE 124: Networked Services Lecture-17

CSE 124: Networked Services Lecture-17 Fall 2010 CSE 124: Networked Services Lecture-17 Instructor: B. S. Manoj, Ph.D http://cseweb.ucsd.edu/classes/fa10/cse124 11/30/2010 CSE 124 Networked Services Fall 2010 1 Updates PlanetLab experiments

More information

Ch. 7: Benchmarks and Performance Tests

Ch. 7: Benchmarks and Performance Tests Ch. 7: Benchmarks and Performance Tests Kenneth Mitchell School of Computing & Engineering, University of Missouri-Kansas City, Kansas City, MO 64110 Kenneth Mitchell, CS & EE dept., SCE, UMKC p. 1/3 Introduction

More information

DMAP : Global Name Resolution Services Through Direct Mapping

DMAP : Global Name Resolution Services Through Direct Mapping DMAP : Global Name Resolution Services Through Direct Mapping Tam Vu, Rutgers University http://www.winlab.rutgers.edu/~tamvu/ (Joint work with Akash Baid, Yanyong Zhang, Thu D. Nguyen, Junichiro Fukuyama,

More information

Peer-to-peer computing research a fad?

Peer-to-peer computing research a fad? Peer-to-peer computing research a fad? Frans Kaashoek kaashoek@lcs.mit.edu NSF Project IRIS http://www.project-iris.net Berkeley, ICSI, MIT, NYU, Rice What is a P2P system? Node Node Node Internet Node

More information

Orleans. Actors for High-Scale Services. Sergey Bykov extreme Computing Group, Microsoft Research

Orleans. Actors for High-Scale Services. Sergey Bykov extreme Computing Group, Microsoft Research Orleans Actors for High-Scale Services Sergey Bykov extreme Computing Group, Microsoft Research 3-Tier Architecture Frontends Middle Tier Storage Stateless frontends Stateless middle tier Storage is the

More information

End-user mapping: Next-Generation Request Routing for Content Delivery

End-user mapping: Next-Generation Request Routing for Content Delivery Introduction End-user mapping: Next-Generation Request Routing for Content Delivery Fangfei Chen, Ramesh K. Sitaraman, Marcelo Torres ACM SIGCOMM Computer Communication Review. Vol. 45. No. 4. ACM, 2015

More information

Developing Microsoft Azure Solutions (70-532) Syllabus

Developing Microsoft Azure Solutions (70-532) Syllabus Developing Microsoft Azure Solutions (70-532) Syllabus Cloud Computing Introduction What is Cloud Computing Cloud Characteristics Cloud Computing Service Models Deployment Models in Cloud Computing Advantages

More information

Science-as-a-Service

Science-as-a-Service Science-as-a-Service The iplant Foundation Rion Dooley Edwin Skidmore Dan Stanzione Steve Terry Matthew Vaughn Outline Why, why, why! When duct tape isn t enough Building an API for the web Core services

More information

Distributed Systems. 05r. Case study: Google Cluster Architecture. Paul Krzyzanowski. Rutgers University. Fall 2016

Distributed Systems. 05r. Case study: Google Cluster Architecture. Paul Krzyzanowski. Rutgers University. Fall 2016 Distributed Systems 05r. Case study: Google Cluster Architecture Paul Krzyzanowski Rutgers University Fall 2016 1 A note about relevancy This describes the Google search cluster architecture in the mid

More information

Edge Device Manager R15 Release Notes

Edge Device Manager R15 Release Notes 2017-03 Software releases are created to add new features, make enhancements or correct defects. These releases are tested on all current, actively shipping platforms and operating systems as applicable.

More information

Best Practices for Validating the Performance of Data Center Infrastructure. Henry He Ixia

Best Practices for Validating the Performance of Data Center Infrastructure. Henry He Ixia Best Practices for Validating the Performance of Data Center Infrastructure Henry He Ixia Game Changers Big data - the world is getting hungrier and hungrier for data 2.5B pieces of content 500+ TB ingested

More information

Design and Architecture. Derek Collison

Design and Architecture. Derek Collison Design and Architecture Derek Collison What is Cloud Foundry? 2 The Open Platform as a Service 3 4 What is PaaS? Or more specifically, apaas? 5 apaas Application Platform as a Service Applications and

More information

Large-Scale Web Applications

Large-Scale Web Applications Large-Scale Web Applications Mendel Rosenblum Web Application Architecture Web Browser Web Server / Application server Storage System HTTP Internet CS142 Lecture Notes - Intro LAN 2 Large-Scale: Scale-Out

More information

Performance Analysis for Crawling

Performance Analysis for Crawling Scalable Servers and Load Balancing Kai Shen Online Applications online applications Applications accessible to online users through. Examples Online keyword search engine: Google. Web email: Gmail. News:

More information

B U I L D I N G O N T H E G A T E W A Y. Copyright 2015, Oracle and/or its affiliates. All rights reserved.

B U I L D I N G O N T H E G A T E W A Y. Copyright 2015, Oracle and/or its affiliates. All rights reserved. B U I L D I N G O N T H E G A T E W A Y Safe Harbor Statement The following is intended to outline our general product direction. It is intended for information purposes only, and may not be incorporated

More information

BraindumpsQA. IT Exam Study materials / Braindumps

BraindumpsQA.  IT Exam Study materials / Braindumps BraindumpsQA http://www.braindumpsqa.com IT Exam Study materials / Braindumps Exam : 70-532 Title : Developing Microsoft Azure Solutions Vendor : Microsoft Version : DEMO Get Latest & Valid 70-532 Exam's

More information

Developing Microsoft Azure Solutions (70-532) Syllabus

Developing Microsoft Azure Solutions (70-532) Syllabus Developing Microsoft Azure Solutions (70-532) Syllabus Cloud Computing Introduction What is Cloud Computing Cloud Characteristics Cloud Computing Service Models Deployment Models in Cloud Computing Advantages

More information

02 - Distributed Systems

02 - Distributed Systems 02 - Distributed Systems Definition Coulouris 1 (Dis)advantages Coulouris 2 Challenges Saltzer_84.pdf Models Physical Architectural Fundamental 2/60 Definition Distributed Systems Distributed System is

More information

Improving locality of an object store in a Fog Computing environment

Improving locality of an object store in a Fog Computing environment Improving locality of an object store in a Fog Computing environment Bastien Confais, Benoît Parrein, Adrien Lebre LS2N, Nantes, France Grid 5000-FIT school 4th April 2018 1/29 Outline 1 Fog computing

More information

Carrier grade VoIP systems with Kamailio

Carrier grade VoIP systems with Kamailio Carrier grade VoIP systems with Kamailio Welcome! Kamailio project 1&1 Internet AG Linuxtag 2009, 24.06.2009 Outline 1. 1&1 VoIP backend purpose and usage architecture 2. Kamailio SIP server 3. High-availability

More information

Sybase Unwired Platform 2.1 Sizing Guide

Sybase Unwired Platform 2.1 Sizing Guide white paper Sybase Unwired Platform 2.1 Sizing Guide OData Mobile Workflow Hybrid Web Container Native Object API www.sybase.com Table of Contents 1 Functions of Sybase Unwired Platform 1 Online Data Proxy

More information

Using the SDACK Architecture to Build a Big Data Product. Yu-hsin Yeh (Evans Ye) Apache Big Data NA 2016 Vancouver

Using the SDACK Architecture to Build a Big Data Product. Yu-hsin Yeh (Evans Ye) Apache Big Data NA 2016 Vancouver Using the SDACK Architecture to Build a Big Data Product Yu-hsin Yeh (Evans Ye) Apache Big Data NA 2016 Vancouver Outline A Threat Analytic Big Data product The SDACK Architecture Akka Streams and data

More information

Internet Indirection Infrastructure (i3) Ion Stoica, Daniel Adkins, Shelley Zhuang, Scott Shenker, Sonesh Surana. UC Berkeley SIGCOMM 2002

Internet Indirection Infrastructure (i3) Ion Stoica, Daniel Adkins, Shelley Zhuang, Scott Shenker, Sonesh Surana. UC Berkeley SIGCOMM 2002 Internet Indirection Infrastructure (i3) Ion Stoica, Daniel Adkins, Shelley Zhuang, Scott Shenker, Sonesh Surana UC Berkeley SIGCOMM 2002 Motivations Today s Internet is built around a unicast pointto-point

More information

Administrivia. Crawlers: Nutch. Course Overview. Issues. Crawling Issues. Groups Formed Architecture Documents under Review Group Meetings CSE 454

Administrivia. Crawlers: Nutch. Course Overview. Issues. Crawling Issues. Groups Formed Architecture Documents under Review Group Meetings CSE 454 Administrivia Crawlers: Nutch Groups Formed Architecture Documents under Review Group Meetings CSE 454 4/14/2005 12:54 PM 1 4/14/2005 12:54 PM 2 Info Extraction Course Overview Ecommerce Standard Web Search

More information

Network layer: Overview. Network layer functions IP Routing and forwarding NAT ARP IPv6 Routing

Network layer: Overview. Network layer functions IP Routing and forwarding NAT ARP IPv6 Routing Network layer: Overview Network layer functions IP Routing and forwarding NAT ARP IPv6 Routing 1 Network Layer Functions Transport packet from sending to receiving hosts Network layer protocols in every

More information

Don t Tread on Me: Moderating Access to OSN Data with SpikeStrip

Don t Tread on Me: Moderating Access to OSN Data with SpikeStrip Don t Tread on Me: Moderating Access to OSN Data with SpikeStrip Christo Wilson, Alessandra Sala, Joseph Bonneau*, Robert Zablit, Ben Y. Zhao University of California, Santa Barbara *University of Cambridge

More information

Peer-to-Peer Architectures and the Magi Open-Source Infrastructure

Peer-to-Peer Architectures and the Magi Open-Source Infrastructure Peer-to-Peer Architectures and the Magi Open-Source Infrastructure Richard N. Taylor Institute for Software Research University of California, Irvine http://www.ics.uci.edu/~taylor Peer-to-Peer Autonomous

More information

Empowering People with Knowledge the Next Frontier for Web Search. Wei-Ying Ma Assistant Managing Director Microsoft Research Asia

Empowering People with Knowledge the Next Frontier for Web Search. Wei-Ying Ma Assistant Managing Director Microsoft Research Asia Empowering People with Knowledge the Next Frontier for Web Search Wei-Ying Ma Assistant Managing Director Microsoft Research Asia Important Trends for Web Search Organizing all information Addressing user

More information

Network layer: Overview. Network Layer Functions

Network layer: Overview. Network Layer Functions Network layer: Overview Network layer functions IP Routing and forwarding NAT ARP IPv6 Routing 1 Network Layer Functions Transport packet from sending to receiving hosts Network layer protocols in every

More information

Distributed Systems. 31. The Cloud: Infrastructure as a Service Paul Krzyzanowski. Rutgers University. Fall 2013

Distributed Systems. 31. The Cloud: Infrastructure as a Service Paul Krzyzanowski. Rutgers University. Fall 2013 Distributed Systems 31. The Cloud: Infrastructure as a Service Paul Krzyzanowski Rutgers University Fall 2013 December 12, 2014 2013 Paul Krzyzanowski 1 Motivation for the Cloud Self-service configuration

More information

Multimedia Streaming. Mike Zink

Multimedia Streaming. Mike Zink Multimedia Streaming Mike Zink Technical Challenges Servers (and proxy caches) storage continuous media streams, e.g.: 4000 movies * 90 minutes * 10 Mbps (DVD) = 27.0 TB 15 Mbps = 40.5 TB 36 Mbps (BluRay)=

More information

R5: Configuring Windows Server 2008 R2 Network Infrastructure

R5: Configuring Windows Server 2008 R2 Network Infrastructure 70-642 R5: Configuring Windows Server 2008 R2 Network Infrastructure Course Introduction Course Introduction Chapter 01 - Understanding and Configuring IP Lesson 1: Introducing the OSI Model Understanding

More information

Internet Technology. 06. Exam 1 Review Paul Krzyzanowski. Rutgers University. Spring 2016

Internet Technology. 06. Exam 1 Review Paul Krzyzanowski. Rutgers University. Spring 2016 Internet Technology 06. Exam 1 Review Paul Krzyzanowski Rutgers University Spring 2016 March 2, 2016 2016 Paul Krzyzanowski 1 Question 1 Defend or contradict this statement: for maximum efficiency, at

More information

Primavera Compression Server 5.0 Service Pack 1 Concept and Performance Results

Primavera Compression Server 5.0 Service Pack 1 Concept and Performance Results - 1 - Primavera Compression Server 5.0 Service Pack 1 Concept and Performance Results 1. Business Problem The current Project Management application is a fat client. By fat client we mean that most of

More information

SOURCERER: MINING AND SEARCHING INTERNET- SCALE SOFTWARE REPOSITORIES

SOURCERER: MINING AND SEARCHING INTERNET- SCALE SOFTWARE REPOSITORIES SOURCERER: MINING AND SEARCHING INTERNET- SCALE SOFTWARE REPOSITORIES Introduction to Information Retrieval CS 150 Donald J. Patterson This content based on the paper located here: http://dx.doi.org/10.1007/s10618-008-0118-x

More information

Internet Technology 3/2/2016

Internet Technology 3/2/2016 Question 1 Defend or contradict this statement: for maximum efficiency, at the expense of reliability, an application should bypass TCP or UDP and use IP directly for communication. Internet Technology

More information

Magento Survey Extension User Guide

Magento Survey Extension User Guide Magento Survey Extension User Guide Page 1 Table of Contents To Access Plugin, Activate API Key... 3 Create Questions... 5 Manage Survey... 6 Assign Question to Survey... 7 Reveal Survey In Three Ways...

More information

VMware AirWatch Content Gateway for Linux. VMware Workspace ONE UEM 1811 Unified Access Gateway

VMware AirWatch Content Gateway for Linux. VMware Workspace ONE UEM 1811 Unified Access Gateway VMware AirWatch Content Gateway for Linux VMware Workspace ONE UEM 1811 Unified Access Gateway You can find the most up-to-date technical documentation on the VMware website at: https://docs.vmware.com/

More information

IQRF - Mesh Networking

IQRF - Mesh Networking IQRF - Mesh Networking Overcoming Challanges with RF Mesh Networks Sebastian Hopp IQRF Tech s.r.o. 2nd November 2017 Microrisc Ltd. Founded in 1991 HQ in Jicin, CZ IQRF since 2004 Over 30 patents IQRF

More information

No, the bogus packet will fail the integrity check (which uses a shared MAC key).!

No, the bogus packet will fail the integrity check (which uses a shared MAC key).! 1. High level questions a. Suppose Alice and Bob are communicating over an SSL session. Suppose an attacker, who does not have any of the shared keys, inserts a bogus TCP segment into a packet stream with

More information

CLOUD COMPUTING It's about the data. Dr. Jim Baty Distinguished Engineer Chief Architect, VP / CTO Global Sales & Services, Sun Microsystems

CLOUD COMPUTING It's about the data. Dr. Jim Baty Distinguished Engineer Chief Architect, VP / CTO Global Sales & Services, Sun Microsystems > CLOUD COMPUTING It's about the data Dr. Jim Baty Distinguished Engineer Chief Architect, VP / CTO Global Sales & Services, Sun Microsystems Cloud Computing it's about nothing new it changes everything

More information

Improve Web Application Performance with Zend Platform

Improve Web Application Performance with Zend Platform Improve Web Application Performance with Zend Platform Shahar Evron Zend Sr. PHP Specialist Copyright 2007, Zend Technologies Inc. Agenda Benchmark Setup Comprehensive Performance Multilayered Caching

More information

Enhancement of CoAP Packet Delivery Performance for Internet of Things. Hang Liu

Enhancement of CoAP Packet Delivery Performance for Internet of Things. Hang Liu Enhancement of CoAP Packet Delivery Performance for Internet of Things Hang Liu Outline Motivation and Industrial Relevance Project Objectives Approach and Previous Results Future Work Outcome and Impact

More information

EMS.WASTE SFS Chemical Safety, Inc. All Rights Reserved Page 1

EMS.WASTE SFS Chemical Safety, Inc. All Rights Reserved Page 1 EMS.WASTE With the EMS.Waste app, your ipad becomes a mobile hazardous waste tracking tool. Use EMS.Waste to track your consolidation and lab pack items into shipping containers, in and out of accumulation

More information

Distributed Naming. EECS 591 Farnam Jahanian University of Michigan. Reading List

Distributed Naming. EECS 591 Farnam Jahanian University of Michigan. Reading List Distributed Naming EECS 591 Farnam Jahanian University of Michigan Reading List Tanenbaum Chapter 4.1-4.2, 4.3(optional) Any problem in computer science can be solved with another layer of indirection

More information

Zero to Microservices in 5 minutes using Docker Containers. Mathew Lodge Weaveworks

Zero to Microservices in 5 minutes using Docker Containers. Mathew Lodge Weaveworks Zero to Microservices in 5 minutes using Docker Containers Mathew Lodge (@mathewlodge) Weaveworks (@weaveworks) https://www.weave.works/ 2 Going faster with software delivery is now a business issue Software

More information

Part2: Let s pick one cloud IaaS middleware: OpenStack. Sergio Maffioletti

Part2: Let s pick one cloud IaaS middleware: OpenStack. Sergio Maffioletti S3IT: Service and Support for Science IT Cloud middleware Part2: Let s pick one cloud IaaS middleware: OpenStack Sergio Maffioletti S3IT: Service and Support for Science IT, University of Zurich http://www.s3it.uzh.ch/

More information

Contents Overview of the Compression Server White Paper... 5 Business Problem... 7

Contents Overview of the Compression Server White Paper... 5 Business Problem... 7 P6 Professional Compression Server White Paper for On-Premises Version 17 July 2017 Contents Overview of the Compression Server White Paper... 5 Business Problem... 7 P6 Compression Server vs. Citrix...

More information

Computer Networks. More on Standards & Protocols Quality of Service. Week 10. College of Information Science and Engineering Ritsumeikan University

Computer Networks. More on Standards & Protocols Quality of Service. Week 10. College of Information Science and Engineering Ritsumeikan University Computer Networks More on Standards & Protocols Quality of Service Week 10 College of Information Science and Engineering Ritsumeikan University Introduction to Protocols l A protocol is a set of rules

More information

Turbo King: Framework for Large- Scale Internet Delay Measurements

Turbo King: Framework for Large- Scale Internet Delay Measurements Turbo King: Framework for Large- Scale Internet Delay Measurements Derek Leonard Joint work with Dmitri Loguinov Internet Research Lab Department of Computer Science Texas A&M University, College Station,

More information

Office 365 and Azure Active Directory Identities In-depth

Office 365 and Azure Active Directory Identities In-depth Office 365 and Azure Active Directory Identities In-depth Jethro Seghers Program Director SkySync #ITDEVCONNECTIONS ITDEVCONNECTIONS.COM Agenda Introduction Identities Different forms of authentication

More information

Highly Scalable, Non-RDMA NVMe Fabric. Bob Hansen,, VP System Architecture

Highly Scalable, Non-RDMA NVMe Fabric. Bob Hansen,, VP System Architecture A Cost Effective,, High g Performance,, Highly Scalable, Non-RDMA NVMe Fabric Bob Hansen,, VP System Architecture bob@apeirondata.com Storage Developers Conference, September 2015 Agenda 3 rd Platform

More information

Cisco Wide Area Bonjour Solution Overview

Cisco Wide Area Bonjour Solution Overview , page 1 Topology Overview, page 2 About the Cisco Application Policy Infrastructure Controller Enterprise Module (APIC-EM), page 5 The Cisco Wide Area Bonjour solution is based on a distributed and hierarchical

More information

System Models for Distributed Systems

System Models for Distributed Systems System Models for Distributed Systems INF5040/9040 Autumn 2015 Lecturer: Amir Taherkordi (ifi/uio) August 31, 2015 Outline 1. Introduction 2. Physical Models 4. Fundamental Models 2 INF5040 1 System Models

More information

jetnexus Virtual Load Balancer

jetnexus Virtual Load Balancer jetnexus Virtual Load Balancer Mitigate the Risk of Downtime and Optimise Application Delivery We were looking for a robust yet easy to use solution that would fit in with our virtualisation policy and

More information

02 - Distributed Systems

02 - Distributed Systems 02 - Distributed Systems Definition Coulouris 1 (Dis)advantages Coulouris 2 Challenges Saltzer_84.pdf Models Physical Architectural Fundamental 2/58 Definition Distributed Systems Distributed System is

More information

Profiling and diagnosing large-scale decentralized systems David Oppenheimer

Profiling and diagnosing large-scale decentralized systems David Oppenheimer Profiling and diagnosing large-scale decentralized systems David Oppenheimer ROC Retreat Thursday, June 5, 2003 1 Why focus on P2P systems? There are a few real ones file trading, backup, IM Look a lot

More information

jetnexus Virtual Load Balancer

jetnexus Virtual Load Balancer jetnexus Virtual Load Balancer Mitigate the Risk of Downtime and Optimise Application Delivery We were looking for a robust yet easy to use solution that would fit in with our virtualisation policy and

More information

Search Engines. Information Retrieval in Practice

Search Engines. Information Retrieval in Practice Search Engines Information Retrieval in Practice All slides Addison Wesley, 2008 Web Crawler Finds and downloads web pages automatically provides the collection for searching Web is huge and constantly

More information

SECURE, FLEXIBLE ON-PREMISE STORAGE WITH EMC SYNCPLICITY AND EMC ISILON

SECURE, FLEXIBLE ON-PREMISE STORAGE WITH EMC SYNCPLICITY AND EMC ISILON White Paper SECURE, FLEXIBLE ON-PREMISE STORAGE WITH EMC SYNCPLICITY AND EMC ISILON Abstract This white paper explains the benefits to the extended enterprise of the on-premise, online file sharing storage

More information

VMware AirWatch Content Gateway Guide for Windows

VMware AirWatch Content Gateway Guide for Windows VMware AirWatch Content Gateway Guide for Windows AirWatch v9.1 Have documentation feedback? Submit a Documentation Feedback support ticket using the Support Wizard on support.air-watch.com. This product

More information