SCALE 9x - 2011 Southern California Linux Expo - Educational

Moving to open source IP Phones with Asterisk

Mon, 14 Mar 2011 11:01:23 +0000

The perils, pitfalls and advantages of moving to IP telephony

Beginner

Four years ago I needed a new four-line phone system for my home business and the choices were astonishingly limited. After finding that the only reasonable four-line cordless phone system cost over $2000,I discovered Asterisk, a Linux based open source PBX and decided to risk that path. Along the way I've learned a few things I think are worth knowing before jumping in.

Speaker: Ira Emus

Downloads

http://bit.ly/ennEDU

Presentation

Day:

Saturday, February 26th

Time:

4:30pm

Room:

Carmel

Produce An Audio Podcast Using Linux

Mon, 14 Mar 2011 11:01:23 +0000

Podcasting advice from a veteran podcast creator and host.

Beginner

Got an idea to share or a story to tell? Got a computer with a microphone? Then you have enough to record, edit, produce and publish a professional quality podcast. Your podcast doesn't have to be about Linux or open source software to use the technology to make it happen. This session will provide you with suggestions for the applications you'll need to do it for free - using Linux and open source software. You'll also get valuable podcasting advice from a veteran podcast creator, host and producer.

Got an idea to share or a story to tell? Got a computer with a microphone? You have enough to record, edit, produce and publish a professional quality podcast. Your podcast doesn't have to be about Linux or open source software to use the technology to make it happen. This session will provide you with suggestions for the applications you'll need to do it for free - using Linux and open source software. You'll also get valuable podcasting advice from a veteran podcast creator, host and producer. * The preparation - Learn how to * Recording the podcast - Connecting the hardware and getting it done * Editing the podcast - Tips and techniques * Producing the podcast - Adding flair and professionalism * Podcast themes and music - Where and how to find it * Getting the word out - Publicize and networking * Publishing the podcast - Hosting * The show notes - What do they contain? * The website/blog - Which is right? * The feed - How to do it * The software - What do I need? * The hardware - From minimal to professional, it's your choice * Avoiding "podfading" - Plan ahead record ahead * Improving your sound - Techniques to maximize your impact

Speaker: Larry Bushey

Downloads

http://bit.ly/eG2psF

Presentation

Day:

Sunday, February 27th

Time:

1:30pm

Room:

Century AB

Take Advantage of Modern Perl

Mon, 14 Mar 2011 11:01:23 +0000

Perl's recent renaissance has produced amazing tools that you too can use today.

Developer

The world's best Perl hackers know the value of the CPAN. They write elegant, powerful, and succinct code. They take advantage of Perl and its ecosystem to accomplish great things. Join their ranks by gaining an understanding of the design principles of Perl 5, and acquiring practical guidance on the safest, clearest, and most maintainable features added in the past few years.

This talk explains the philosophy of language design apparent in Perl 5 along the two fundamental axes of the language: lexical scoping and pervasive value and amount contexts. It also discusses several important pragmas and language extensions to improve Perl 5's defaults, to reduce the chance of errors, to allow better abstractions, and to encourage the writing of great code.

Speaker: chromatic x

Downloads

http://bit.ly/hS6gYX

Presentation

Day:

Sunday, February 27th

Time:

11:30am

Room:

Century CD

Pontificating on Perl Profiling

Mon, 14 Mar 2011 11:01:23 +0000

This talk will guide the beginner Perl user through they whys and hows of code profiling. Attendees will be introduced to some of the profiling tools available, with demonstration of speeding up a single call by 85%. Attendees will learn simple techniques

Developer

This talk will guide the beginner Perl user through the whys and hows of code profiling. The Devel::NYTProf profiling tool will be introduced in the context of how to find a significant speed up based on an inefficient sub routine in a popular CPAN module. Attendees will be shown the tool and associated output, and will have a walk-through of how to interpret data for best optimization candidates.

Whenever a Perl program or script is not working as quickly as we think it should, we're all tempted to start pointing at the obvious issue. It's because you're using a four line block to get that hash, you should use ?map?. *That's* your problem. The database is slow, it takes forever to run the query. You're not caching that response, you need to optimize! Ok, so that last one might actually be right. But how do we know? Even if we should optimize, what should we optimize? Where are the real slow downs, and where can we get the biggest wins? The answer to these questions comes from Profiling. At Dyn Inc. we've been writing enterprise grade web applications and software in Perl for over a decade. We think we?re pretty good at. And yet, when we started to experience slow downs on a new system as the user-base grew we spent a lot of time trying to make the code faster.? It wasn't until we took the time to run some of the suspected problematic libs through a profiler that we finally were able to gain some significant speed ups. An 85% speed up in one call alone. We became profiling fools. Maybe more illuminating than where we needed to optimize was where we did not have to. Many assumptions were dashed in the face of data. This talk will guide the beginner Perl user through they whys and hows of code profiling. Attendees will be introduced to the profiling tool Devel::NYTProf, in the context of how Dyn Inc. engineers found a significant speed up based on an inefficient sub routine in a popular CPAN module. Attendees will be shown the tool, and associated output, along with a walk-through of how to interpret the data for best optimization candidates. They will be shown simple techniques for benchmarking and profiling scripts and sub-routines.

Speaker: Lisa Hagemann

Downloads

http://bit.ly/hS6gYX

Presentation

Day:

Sunday, February 27th

Time:

1:30pm

Room:

Century CD

Intro to Python

Mon, 14 Mar 2011 11:01:23 +0000

A basic introduction to Python scripting.

Beginner

Python is still building up steam as the programming language of the future, and is especially good for systems work. This talk will simply be a demonstrative introduction to the language and its uses. We will cover how to get a script running, interactive python, basic object types, functions and classes. We'll also take a look at how to obtain modules, and cover a few basic ones.

Scripting Basics What Makes Python Special? Magic - shebang Where is Python? Comments Execution Debugging Python -d Python Interactive Shell IPython help() dir() pdb Objects and Methods Bools Strs Ints Lists Tuples Dicts What Are Iterators? Functions Also Objects Code Segregation Using a main() Function Classes Also Objects Writing a Class Instantiating a Class Modules Also Objects Importing Modules Installing Modules Some Cool Modules sys os re time socket httplib subprocess json Other Resources

Speaker: Andrew Vandever

Downloads

http://bit.ly/ebRb45

Presentation

Day:

Saturday, February 26th

Time:

3:00pm

Room:

La Jolla

Redis: Data Cheeseburgers

Mon, 14 Mar 2011 11:01:23 +0000

Learn about Redis and how you can use it with your applications.

Developer

Explaining Redis is tough. It’s easy to say “a data structures server” or “memcached on steroids” or something more jargon filled. It’s not exactly a key value store, it’s definitely not a relational or document-oriented database. Usually as programmers we have to bend our data into a table or document to save it, but with Redis we can persist data as we conceptually visualize it. You may have heard that Redis is super fast, is being used for everything from analytics to job queues, and even on large sites such as Craigslist. Learn about the basics of Redis and we'll cover some use cases so you can see how to integrate with your applications.

Explaining Redis is tough, it’s easy to say “a data structures server” or “memcached on steroids” or something more jargon filled. It’s not exactly a key value store, it’s definitely not a relational or document-oriented database. Usually as programmers we have to bend our data into a table or document to save it, but with Redis we can persist data as we conceptually visualize it. You may have heard that Redis is super fast, is being used for everything from analytics to job queues, and even on large sites such as Craigslist. Learn about the basics of Redis and we'll cover some use cases so you can see how to integrate with your applications. Tasty!

Speaker: Nick Quaranto

Downloads

http://bit.ly/eszIGS

Presentation

Day:

Sunday, February 27th

Time:

4:30pm

Room:

Los Angeles A

IPv6 Basics for Linux Administrators

Mon, 14 Mar 2011 11:01:23 +0000

An introduction to getting IPv6 going on your Linux System

System Administrator

Now that the IPv4 free pool is exhausted (or will be very soon), expanding your network or connecting to new or expanding networks is going to require that you be able to use IPv6. Learn how to configure and use IPv6 on a Linux system and get your critical services speaking IPv6.

A brief introduction to IPv6 on Linux. Includes native connectivity, Tunnels of several types, and details for configuring DNS, Apache, Sendmail, and more.

Speaker: Owen DeLong

Downloads

http://bit.ly/eDdlBh

Presentation

Day:

Saturday, February 26th

Time:

1:30pm

Room:

Century AB

Securing web applications for system administrators

Mon, 14 Mar 2011 11:01:23 +0000

A presentation covering common attack methods and how to secure web applications when altering the code is not an option.

System Administrator

Neglected web applications are both a breeding ground for malicious activity on the web and a concern for web hosting providers. This talk will cover some basic info on three common attack methods (XSS, SQL Injection and insecure upload form) as well as three easy ways system administrators can address each type of threat, plus some other information on security best practices.

The ever growing pool of neglected web applications is a breeding ground for malicious activity on the web, and is a concern for web hosting providers whose customers tend to leave no time for security updates after updating their blogs, forums or CMS sites. This talk will cover some basic information on 3 common attack methods as well a 3 easy ways system administrators can address each type of threat and some other details regarding security best practices. Attack: XSS, SQL Injection and insecure upload forms. Defense: mod_security, IDS/IPS (snort/snortsam), and file system monitoring.

Speaker: Robert Rowley

Downloads

http://bit.ly/fLLSgD

Presentation

Day:

Saturday, February 26th

Time:

4:30pm

Room:

La Jolla

Beyond Linux: Changing the World with Open Source

Mon, 14 Mar 2011 11:01:23 +0000

At opensource.com, we explore what happens when the open source way is applied to the world. What problems can we solve? How would it affect the way we learn? Run our businesses? Our governments?

General

“Open source” has become more than a way to describe software source code and the collaborative model for how it's developed. It's now a business model, an education model, and the future of government and law. It's changing our lives through its principles: openness, transparency, collaboration, diversity, and rapid prototyping. Learn about what others have been doing, and get involved!

Speaker: Ruth Suehle

Downloads

http://bit.ly/ejA4Bb

Presentation

Day:

Sunday, February 27th

Time:

4:30pm

Room:

Century CD

Scalable Virtualization with Ganeti

Mon, 14 Mar 2011 11:01:23 +0000

Ganeti is an open source project which offers many solutions to simplify a clustered virtual machine environment. This session will walk through Ganeti covering its basic design goals/features, installation architecture, and production implementation.

System Administrator

Ganeti is a clustered virtual server management software tool built on top of existing virtualization technologies (such as Xen or KVM). This talk will discuss a case at the Oregon State University Open Source Lab (OSUOSL) where we had scaling, performance, and reliability issues with our existing VM infrastructure. We will also cover overall design, features, and basic operations of Ganeti.

Whether you need a simple scalable development virtual machine environment or need to deploy a large cloud production environment, you need a tool that is easy to use, deploy, and maintain. Ganeti is a clustered virtual server management software tool built on top of existing virtualization technologies such as Xen or KVM. It is similar to libvirt in many aspects, but different in others such as its built-in cluster support using DRBD. The focus will be on a use case at the Oregon State University Open Source Lab (OSUOSL) where we were faced with scaling, performance, and reliability issues with our existing VM infrastructure. I’ll cover the overall design and features of Ganeti along with the basics of installing it. Additionally I’ll walk through some of the basic operations you may encounter (deployment, failover, expansion, hardware failures, etc). I'll also cover some tools that we are using to help manage our clusters.

Speaker: Lance Albertson

Downloads

http://bit.ly/hqvxgv

Presentation

Day:

Saturday, February 26th

Time:

6:00pm

Room:

Century AB