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PLUG's Upcoming Events
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This month Phil Waclawski will give us an introduction to Krita and Ed Nicholson will explain DNSSEC and NTPsec
Phil Waclawski: Krita Basics: Tools, Layers, Coloring etc
Krita is a powerful painting program, designed for graphic designers and general artists. I will introduce the basic features it provides, along with some special filters, including G'mic. I will however not be able to demonstrate any artistic skills :)
About Phil:
Phil has been a faculty member, focusing on open source software at MCC for nearly two decades.
Phil teaches a variety of course, including MySQL Database, PHP, Python, Javascript, HTML 5 and CSS, Linux OS, Internet Server Set up and more.
This summer, Phil will once again be offering a "MCC Multimedia Madness" summer camp for 6-8th graders. Over the two weeks I will cover a wide range of open source software, including GIMP, Inkscape, Krita, Audacity, Blender, Hydrogen Drum Kit, Tux Guitar, Openshot, Linux Multimedia Studio, work with green screen and more.
For hobbies, Phil has too many. Blacksmithing, archery, Leatherworking, Wood Working, Jewelry, Sound Recording/editing and SCUBA diving. Phil is also learning to play the Bass.
Phil has been using linux at home for desktops and servers since 1994.
Ed Nicholson: DNSSEC DANE & NTPsec - Trust but Verify
DNSSEC DANE and NTPsec - The basic infrastructure of the Internet hasn't seen such significant improvement since Jon Postel's contributions to the original DNS RFCs. DNSSEC is operational authentication of information served by authoritative DNS servers. This is the dawn of the believable Internet. An important consequence has been the emergence of DANE or DNS-based Authentication of Named Entities. And that adds confidentiality to believability. Even as Internet naming gains this new robustness, similar efforts are improving our access to time services with the NTPsec project. While not all Internet infrastructure has left the era of blind trust, the names and times we depend on are now things we can verify. This presentation is about consuming and deploying DNSSEC DANE and NTPsec services.
About Ed:
Ed has been involved with Free Software for some time. His interests are in how people, organizations and populations use, create and experience information. He enjoys The Prescott National Forest as his "office" and The Valley of The Sun as a home away from home. Personal systems run either Fedora, Project Atomic, Android or OpenBSD.
PLUG is hosting a CryptoParty!
Show up on Thursday May 11th to get help securing your mobile and desktop electronics.
A CryptoParty is a global, decentralized, grass-root movement to help people protect their privacy.
The Phoenix Linux Users Group (PLUG) will have labs to help you setup things like secure messaging with Signal, VPN, TOR, a password manager and multi-factor authentication.
A CryptoParty relies on two resources. 1) people with the knowledge and desire to lead a lab; 2) people who want to take the lab and improve their security.
Read more: PLUG Cryptoparty on 5/11 at regular meeting
 Join the Phoenix Linux Users Group at their Security Session to learn about real world exploits used in the wild to gain unauthorized access to computers. We will be discussing Brute Force Attacks, Man-In-The-Middle attacks (DNS hijacking), Social Engineering, and Web Application Exploits targeting popular CMS like WordPress. This two hour meeting will focus on providing simplified and easy to follow explanations of the methods used to attack your servers and how you can better prepare yourself to mitigate the risks.
* Any discussion of paid services or software will be done for educational purposes only. Neither the instructor, PLUG, or any one involved in this course endorses any paid services or products discussed at this meeting.
This month we will have a two presentations. Phil Waclawski will present "Using Hierarchical Data in MySQL, Trees vs Nests" and Ed Nicholson will present "Securing a SSH Bastion host with PrivacyIDEA and U2F"
Phil Waclawski: Using Hierarchical Data in MySQL, Trees vs Nests
Real world data is often made of hierarchical relationships, or "trees".
Representing that data in a Relational Database starts to get complicated as soon as you have more than two levels in your "Tree".
There are many strategies for handling such data, and I will cover examples of at least two of them (adjacency list and nested sets) and possibly more.
If you have access to a mysql instance, you can create the test tables and follow along, or get the code later.
About Phil:
Phil has been a faculty member, focusing on open source software at MCC for nearly two decades.
Phil teaches a variety of course, including MySQL Database, PHP, Python, Javascript, HTML 5 and CSS, Linux OS, Internet Server Set up and more.
This summer, Phil will once again be offering a "MCC Multimedia Madness" summer camp for 6-8th graders. Over the two weeks I will cover a wide range of open source software, including GIMP, Inkscape, Krita, Audacity, Blender, Hydrogen Drum Kit, Tux Guitar, Openshot, Linux Multimedia Studio, work with green screen and more.
For hobbies, Phil has too many. Blacksmithing, archery, Leatherworking, Wood Working, Jewelry, Sound Recording/editing and SCUBA diving. Phil is also learning to play the Bass.
Phil has been using linux at home for desktops and servers since 1994.
Ed Nicholson: Securing a SSH Bastion host with PrivacyIDEA and U2F
Bastion Servers are an important tool for access control to your other
systems. PrivacyIDEA is a credential management system that can add
many types of authentication to your Jump Server, for example U2F.
FIDO Universal 2nd Factor Keys are a convenient standard implemented
by many to improve security. PrivacyIDEA is a great example of how
easy adding important levels of security to your systems can be.
About Ed:
Ed has been involved with Free Software for some time, and is most
interested in how people, organizations and populations use, create and
experience information. Recently, Ed is enjoying The Prescott National Forest
as his "personal office" and The Valley of The Sun as a home away from home.
Personal systems run either Fedora, Project Atomic, Android or OpenBSD.
We will be holding our new security meeting on April 11th at 7pm.
In this meeting we will learn about Virtual Private Networks, Proxies, and Tor. We will be discussing new developments on who can sell your data, how that data is gathered, and what these tools can do for you. Traffic obfuscation is not a silver bullet for anonymization. This two hour meeting will focus on providing a simplified and easy to follow explanation of online privacy, the technologies involved in masking or revealing users, and what a VPN or Tor can do for you.
* Any discussion of paid services or software will be done for educational purposes only. Neither the instructor, PLUG, or any one involved in this course endorses any paid services or products discussed at this meeting. For more information see our meeting information page.
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