BestTechVideos: Tag networking Videos

Challenges and Opportunities in Academic Research Networking

scoundrel — Thu, 13 Mar 2008 16:19:36 GMT

Google Tech Talks
January, 28 2008

ABSTRACT

Topics include:

* New applications and apps usage/deployment and the challenges they pose for networks
* Network trends in the R&E community.
o towards network virtualisation (circuits as a service/light paths provisioned by users or applications on demand) - "Articulated Private Networks"
o inter-network control, managing QoS / lightpaths and other performance attributes across network domains
o sustainability issues - reducing the Carbon footprint of the network itself and our users

Speaker: Donald Clark, Chief Executive, REANNZ (Research & Education Advanced Network NZ Ltd)

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Content Delivery Network Pricing, Costs for Outsourced Video Delivery

scoundrel — Wed, 12 Mar 2008 23:35:59 GMT

Whether you’re in an organization that needs to deliver lots of video or a smaller company that needs to deliver only a few videos, the going rate for these services can still be hard to figure out. What variables determine the final price? What is the going rate when you outsource delivery and storage to a third party?

This presentation offers real pricing numbers from large, globally focused content delivery networks as well as smaller regional service providers. Hear what the going rate is today for video delivery and learn what you should really be paying for these services.

Presenter Dan Rayburn, Executive Vice President, StreamingMedia.com

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The OpenOnload User-level Network Stack

scoundrel — Sun, 09 Mar 2008 20:08:17 GMT

Google Tech Talks
February, 7 2008

ABSTRACT

The architecture of conventional networked systems has remained largely constant for many years now. However, some specialised application domains have adopted alternative architectures. For example, the HPC community uses message passing libraries which perform network processing in user-space in conjunction with the features of user-accessible network interfaces. Such user-level networking reduces networking overheads considerably without sacrificing the security and resource management functionality that the operating system normally provides.

Supporting user-level TCP/UDP/IP networking for a more general set of applications poses considerable challenges, including: intercepting system calls, binary compatability with existing applications, maintaining security, supporting fork() and exec(), passing sockets through Unix domain sockets and advancing the protocol when the application is not scheduled.

This talk presents the OpenOnload architecture for user-level networking. We describe our solutions to the challenges outlined above, and novel techniques to reduce CPU overhead, avoid lock contention, minimise interrupt overheads and improve cache efficiency. Finally we present performance results of the OpenOnload stack including protocol compliance, and plans for further work within the open source community.

Speaker: Steven Pope
Steven Pope is a CTO at Solarflare Communications. Previously he co-founded Level 5 Networks and prior to that was a post-doctorate researcher in the field of high-speed networks and operating systems at Olivetti Research Labs, which later became AT&T Laboratories Cambridge. He holds a PhD in Computer Science from the University of
Cambridge.

Speaker: David Riddoch
David Riddoch is Chief Software Architect at Solarflare Communications. David joined Solarflare with the merger of Solarflare with Level 5 Networks in April 2006. David co-founded Level 5 Networks in July 2002. Previously, David was the architect and lead developer of the software for the CLAN high performance network project at AT&T Laboratories Cambridge. David holds a first class degree in computer science and a Ph.D. in high performance networking from the University of Cambridge.

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Railscast: Cookie Based Session Store

scoundrel — Mon, 17 Dec 2007 18:01:56 GMT

In Rails 1.2 the default session store is file based. This is inefficient and difficult to maintain. In Rails 2.0 the default is now cookie based which has several benefits as you will see in this episode.

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WITCH: A New Approach to Web Spam Detection

scoundrel — Sun, 16 Dec 2007 18:32:54 GMT

Google Tech Talks
December, 14 2007

ABSTRACT

We present an algorithm, WITCH, that learns to detect spam hosts or pages on the web. Unlike most other approaches, it simultaneously exploits the structure of the Web graph, as well as page contents and features.

Speaker: Jake Abernethy

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DomainKeys Identified Mail Technology

scoundrel — Sat, 08 Dec 2007 21:22:41 GMT

Google Tech Talks
December, 5 2007

DomainKeys Identified Mail (DKIM) is an emerging IETF standard (RFC
4871) to authenticate sending domains in SMTP mail. It is designed
to be scalable, extensible, back-compatible, and adoptable without
any flag days.

This talk will cover the background of sender domain authentication
in general and DKIM in particular, details of how DKIM works, and
other issues that DKIM brings up, notably sender accreditation and
reputation and receiver policy. Sendmail's Open Source
implementation of DKIM will also be discussed.

Speaker: Eric Allman
As Sendmail's Chief Science Officer and co-founder, Eric Allman leads the company's technology strategy and direction. Allman authored sendmail, the world's first Internet Mail program, in 1981 while at the University of California at Berkeley. He continues to spearhead sendmail.org, the global team of volunteers that maintain and support the sendmail Open Source platform.

At the forefront of industry-leading trends and technology, Allman is currently a leader of the movement to adopt an international standard for Sender Domain Authentication. Allman, backed by a cross-industry group of companies (Cisco, Yahoo, PGP, et. al.), co-authored the draft specification for DomainKeys Identified Mail (DKIM), and submitted it to the Internet Engineering Task Force (IETF).

Before joining Sendmail, Allman served as CTO for Sift, Inc., which is now part of 24/7 Media, Inc. He was lead developer and provided a large-scale research software infrastructure on the Mammoth project at U.C. Berkeley. Allman has contributed as a senior developer at the International Computer Science Institute to neural network systems design. Allman was also Chief Programmer on the INGRES Relational Database Management System and an early contributor to Berkeley UNIX, authoring syslog, tset, the troff -me macros, and trek in addition to sendmail. For several years, he has co-authored the "C Advisor" column for UNIX Review magazine. He was formerly a member of the Board of Directors of USENIX Association and is currently a member of the ACM Queue Editorial Review Board.

Allman holds an Masters of Science degree in Computer Science from the University of California at Berkeley.

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Railscast: HTTP Basic Authentication

scoundrel — Thu, 06 Dec 2007 00:44:35 GMT

Rails 2.0 offers an extremely easy way to do HTTP basic authentication. See how in this episode.

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The Web That Wasn't

scoundrel — Sun, 02 Dec 2007 20:30:06 GMT

Google Tech Talks
October, 23 2007

ABSTRACT

For most of us who work on the Internet, the Web is all we have ever really known. It's almost impossible to imagine a world without browsers, URLs and HTTP. But in the years leading up to Tim Berners-Lee's world-changing invention, a few visionary information scientists were exploring alternative systems that often bore little resemblance to the Web as we know it today. In this presentation, author and information architect Alex Wright will explore the heritage of these almost-forgotten systems in search of promising ideas left by the historical wayside.

The presentation will focus on the pioneering work of Paul Otlet, Vannevar Bush, and Doug Engelbart, forebears of the 1960s and 1970s like Ted Nelson, Andries van Dam, and the Xerox PARC team, and more recent forays like Brown's Intermedia system. We'll trace the heritage of these systems and the solutions they suggest to present day Web quandaries, in hopes of finding clues to the future in the recent technological past.

Speaker: Alex Wright
Alex Wright is an information architect at the New York Times and the author of Glut: Mastering Information Through the Ages. Previously, Alex has led projects for The Long Now Foundation, California Digital Library, Harvard University, IBM, Microsoft, Rollyo and Sun Microsystems, among others. He maintains a personal Web site at http://www.alexwright.org/

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Internet Security Keynote Google VP Vint Cerf

scoundrel — Tue, 13 Nov 2007 08:12:40 GMT

Internet Security Summit Keynote Google VP Vint Cerf topics include malware, international domain names, P2P protocols and IP protection issues.

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Wuala - a distributed file system

scoundrel — Tue, 06 Nov 2007 03:14:20 GMT

Google Tech Talks
October, 30 2007

ABSTRACT

After three years of research and development on a distributed storage system, we are ready to unveil the result: Wuala. Wuala is a new way of storing, sharing, and publishing files on the internet. Unlike traditional online storage systems, Wuala is decentralized and can harness idle resources of participating computers to build a large, secure, and reliable online storage. This enables its users to trade parts of their local storage for online storage and it allows us to provide a better service for free. In the talk, I will explain what Wuala is and how it works, and I will also show a demo. All attendees will also get an invitation code to join the early alpha version.

Speaker: Dominik Grolimund
I am 26 years old and have studied computer science at ETH Zurich. In 1998, I founded my software company Caleido, and developed the Caleido Address-Book, a professional contact management software, of which over 35'000 licenses have been sold so far in Switzerland, Germany and Austria.

In 2003, I did an exchange semester at the TU Delft, the Netherlands, as part of the Unitech exchange program, focusing on business and management. In 2004, a six-month internship followed with Siemens Corporate Research in Princeton, New Jersey in the US, where I worked in the 'Intelligent Vision & Reasoning' department, developing a prod...

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