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OC.pm Coding challenge πŸ”—
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🏷️ news
June 2017
Presenter: Various
JD Lightsey suggested that the group make an attempt at the Perl Programming challenge that OC.pm proposed for their May 2017 meeting. Eveyone was suggested to make an attempt.

Live Code Reviews πŸ”—
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🏷️ news
May 2017
Presenter: Various
The goal this meeting was to do some code reviews as a group. The idea was that we would learn from each other's techniques and knowledge.

p5hack πŸ”—
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🏷️ news
April 2017
Topic: p5hack
Presenter: Todd Rinaldo
Todd Rinaldo discussed the p5hack hack-a-thon this year in Amsterdam. He described the purpose of the meeting and some of the decisions that came out of the meeting.

Maintaining Developer Mental and Physical Health πŸ”—
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🏷️ news
March 2017
Presenter: Various
Jim Bacon, Robert Stone, and Jocelyn Kirby gave short presentations on health topics that can apply to developers.

Homophonic Substitution Cipher: Cracking the Code of a Killer πŸ”—
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🏷️ news
February 2017
Presenter: Robert Stone
Robert Stone delves into the cipher used by the Zodiac Killer in his newspaper announcements. He describes substitution ciphers and then shows how a homophonic substitution cipher fixes many of its problems. He ends by describing how the Zodiac Killer's cipher was solved.

cperl πŸ”—
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🏷️ news
January 2017
Topic: cperl
Presenter: Reini Urban
Reini Urban gave a presentation highlighting several of the features of the cperl fork of the perl programming language.

How Functional Programming Made Me Better at Perl πŸ”—
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🏷️ news
October 2016
Presenter: Mark Allen
Mark Allen discusses the way doing functional programming in Erlang has changed how he approaches problems. He then introduced how to use some of this insight in Perl.

The Read Copy Update Pattern in the Linux Kernel πŸ”—
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🏷️ news
September 2016
Presenter: Julian Brown
Continuing with the lock-free architecture topic Julian introduced at an earlier meeting, he covered the Read-Copy-Update strategy.

A Set of Short Talks πŸ”—
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🏷️ news
August 2016
Presenter: Various
This month's meeting features a group of 4 short talks by some of our long-time members. Robert Stone discusses connecting objects by reference versus indirectly by some ID. Julian Brown talked about lock-free architectures. J. D. Lightsey demonstrated another SQL injection attack using sqlmap. And, Todd Rinaldo rounds out the talks with a discussion of a Perl vulnerability related to @INC.

Reconstructing an SQL injection from its fix πŸ”—
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🏷️ news
June 2016
Presenter: John Lightsey
John Lightsey shows how to use a diff of changes made to fix an SQL injection attack to create an attack against the unpatched code. He shows the use of the sqlmap tool to automatically generate useful attacks.

Binary Tree Serialization Techniques πŸ”—
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🏷️ news
May 2016
Presenter: Chris Mevissen
Chris Mevissen gave a report on the research he has been doing on serializable binary trees. He describes the basics of binary tree data structures and descibes a basic implementation in Perl. He works his way through showing how a binary tree can be serialized in a form that can be easily reloaded.

FlexSC: Exception-Less System Calls πŸ”—
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🏷️ news
April 2016
Presenter: Julian Brown
Julian Brown covered a presentation describing a method for doing system calls while reducing context switching overhead. The paper the presentation was based on covered an academic project to implement this method and the research showing its effectiveness.

Algorithmic Complexity Made Simple πŸ”—
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🏷️ news
March
Presenter: G. Wade Johnson
G. Wade Johnson introduced the idea that analyzing the complexity of algorithms is more than just an academic exercise. He shows how to do relatively simple analysis for quick wins.

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