Hacker Public Radio

This episode is about how Al and Jerry Meet at Oggcamp. What we enjoy about the event,what to expect and encourage people to attend next year. This is my second HPR episode after beni recorded a interview with me at oggcamp and said I should submit my own episode Links http://adminadminpodcast.co.uk

I am a Linux user since the end of 1999. Which is 15 years already. I've also been trying for almost 15 years to convince other people to try Linux. And I must confess that I very often used wrong arguments doing this. After 15 years it is time to ditch some fake arguments, and to tell you the real reasons why you should switch to Linux. :-) I apology for the bad audio quality. A full transcript of this episode can be found on my blog. http://blog.johanv.org/posts/why-linux.html

Previously we looked at Public Key encryption, which is also called Asymmetric Encryption because it uses two different keys for the encryption and decryption. This allows us to solve one of the biggest problems in secure encrypted communication, which is key distribution. Because the public key can be freely distributed, you dont need to maintain security around the process of distributing keys. Symmetric encryption, on the other hand, relies on a shared key that is used for both encryption and decryption. An example of this is the one-time pad, where you printed up a pad of paper that contained various keys, and each one was used only once. As long as no one can get the key, it is unbreakable, but the big weakness was key distribution. How do you get the one-time pad into the hands of your correspondent? And you would need to do this with separate one-time pads for each person you needed to communicate with. These are the kinds of problems that made asymmetric encryption so popular. Finally, symmetric key crypto cannot be used to reliably create a digital signature. The reason should be clear. If I have the same secret key you used to sign a message, I can alter the message, use the shared secret key myself, and claim you sent it. - For more go to http://www.zwilnik.com/?page_id=650 Links: http://en.wikipedia.org/wiki/Data_Encryption_Standard http://en.wikipedia.org/wiki/Block_cipher http://en.wikipedia.org/wiki/ASCII http://en.wikipedia.org/wiki/Triple_DES http://en.wikipedia.org/wiki/Advanced_Encryption_Standard http://doctrina.org/How-RSA-Works-With-Examples.html http://en.wikipedia.org/wiki/Discrete_logarithm http://en.wikipedia.org/wiki/ElGamal_encryption http://en.wikipedia.org/wiki/Diffie%E2%80%93Hellman_key_exchange http://en.wikipedia.org/wiki/Elliptic_curve_cryptography http://www.zwilnik.com/?page_id=650

What is on my podcast player All About Android Dan Carlin's Hardcore History Doctor Who Podcast: DWO WhoCast Doctor Who: Podshock MP3 Doctor Who: Radio Free Skaro Doctor Who: The Commentaries Droid Nation MP3 FLOSS Weekly Full Circle Magazine Geek's Guide to the Galaxy Going Linux Hacker Public Radio ITSM Weekly The Podcast Knightcast Linuxbasix Linux For The Rest Of Us Linux Outlaws Lococast MuggleCast: the Harry Potter podcast Science Friday Audio Podcast Security Now! Space Dog Podcast StarTalk Radio Show by Neil deGrasse Tyson Stephen Fry's PODGRAMS Sunday Morning Linux Review TalkBMC The Bugle The Command Line The Future And You The Infinite Monkey Cage The Linux Action Show! The Linux Link Tech Show The Project Management Podcast The Techie Geek Podcast This Week In Google This Week in Science - The Kickass Science Podcast this WEEK in TECH Triangulation TuxRadar Linux Podcast Ubuntu Podcast ZaReason My web site is at hhttp://www.zwilnik.com/. Remember to support free software!

Last time we looked at how you can use GPG and Enigmail to digitally sign or encrypt messages in Thunderbird. But today many people use web-based mail, and one of the most popular is Googles Gmail. Others include Outlook.com and Yahoo, but using any of them is pretty similar. So since I have a Gmail account handy, I will use that to demonstrate encryption in web mail accounts. The important thing you must keep in mind is that this relies on you using your GPG keys to either sign or encrypt the message before it leaves your computer, what Steve Gibson calls Pre-Interent Encryption, or PIE. The flaw in what Lavabit did (discussed in previous lesson) was to use keys that the mail provider controlled, and these keys could be (and were) demanded by the the government.. If you use your own GPG keys that you control, no provider (Google, in this case) is even capable of giving anything to the government other than a blob of random nonsense. To do this, I will use an extension for Googles Chrome Browser called Mailvelope. This is also available for Firefox, but in my case I use Chrome to access my Gmail account., so using a Chrome extension makes sense for me. The first thing to do is go to the Chrome store, search for Mailvelope, and install it. For the remainder of the show notes please see http://www.zwilnik.com/?page_id=546 Links http://www.mailvelope.com/

sigflup and kubilus1 talk about kubilus1's vgm driver for the Sega Genesis/Megadrive. Links DefleMask: http://www.delek.com.ar/deflemask Genesis Linux Setup: https://code.google.com/p/gendev/ VGM Driver: https://code.google.com/p/gendev/source/browse/#svn%2Ftrunk%2Fextras%2Fsound_drvr%2Fdriver Spritesmind forums: http://gendev.spritesmind.net/forum

LibreOffice Calc: What is a Spreadsheet? There are different ways to answer this question. Functionally, spreadsheets are a tool for mathematical calculations, but have branched out into related areas like data analysis. Some people even use them as a quick-and-dirty database tool. If you are in a financial profession of some kind you probably live in spreadsheets all day. Spreadsheets are original “killer app”. Early examples were implemented on mainframe computers in the 1960s, but the big step was the creation of VisiCalc for the Apple II in 1979, which was then ported to the IBM PC in 1981. VisiCalc set the conventions that guided all subsequent spreadsheets, and the essential methods have not changed since then. VisiCalc was called the first killer app because people would buy the computer just to run the program, and the usefulness of spreadsheets is what promoted the initial entry of personal computers into the corporate world, with all of the change that has caused. For the remainder of this article please see http://www.ahuka.com/?page_id=699

Thanks to Pokey for being the expert in this oggcast. Note: The song 'Do The Hokey Pokey is copywrited' http://osmand.net Functionality OsmAnd (OSM Automated Navigation Directions) is a map and navigation application with access to the free, worldwide, and high-quality OpenStreetMap (OSM) data. All map data can be stored on your device's memory card for offline use. Via your device's GPS, OsmAnd offers routing, with optical and voice guidance, for car, bike, and pedestrian. All the main functionalities work both online and offline (no internet needed). Some of the main features: Navigation Works online (fast) or offline (no roaming charges when you are abroad) Turn-by-turn voice guidance (recorded and synthesized voices) Optional lane guidance, street name display, and estimated time of arrival Supports intermediate points on your itinerary Automatic re-routing whenever you deviate from the route Search for places by address, by type (e.g.: restaurant, hotel, gas station, museum), or by geographical coordinates Map Viewing Display your position and orientation on the map Optionally align the map according to compass or your direction of motion Save your most important places as Favorites Display POIs (point of interests) around you Can display specialized online tile maps Can display satellite view (from Bing) Can display different overlays like touring/navigation GPX tracks and additional maps with customizable transparency Optionally display place names in English, local, or phonetic spelling Use OpenStreetMap and Wikipedia Data High quality information from the best collaborative projects of the world Global maps from OpenStreetMap, available per country or region Wikipedia POIs, great for sightseeing (not available in free version) Unlimited free download, directly from the app (download limit 16 map files in free version) Always up-to-date maps (updated at least once a month) Compact offline vector maps Select between complete map data and just road network (Example: All of Japan is 700 MB, or 200 MB for the road network only) Also supports online or cached tile maps Safety Features Optional automated day/night view switching Optional speed limit display, with reminder if you exceed it Optional speed-dependent map zooming Share your location so that your friends can find you Bicycle and Pedestrian Features The maps include foot, hiking, and bike paths, great for outdoor activities Special routing and display modes for bike and pedestrian Optional public transport stops (bus, tram, train) including line names Optional trip recording to local GPX file or online service Optional speed and altitude display Display of contour lines and hill-shading (via additional plugin) Directly Contribute to OpenStreetMap Report map bugs Upload GPX tracks to OSM directly from the app Add POIs and directly upload them to OSM (or later if offline) Optional trip recording also in background mode (while device is in sleep mode) OsmAnd is open source and actively being developed. Everyone can contribute to the application by reporting bugs, improving translations, or coding new features. The project is in a lively state of continuous improvement by all these forms of developer and user interaction. The project progress also relies on financial contributions to fund th

I decided to attend FOSDEM 2014 this year. I had thought about going to last year's conference but didn't get organised enough to make it. When I mentioned my plans to my friend Tom, he thought he'd attend too, and we agreed to meet up there. When we got back from the conference I wanted to record a conversation with Tom about our impressions of the event. We tried to do this four times before we finally managed it. We struggled through one recorder battery failure and two Mumble failures before we achieved success. This is the result of our conversation. Apologies for the phone interference in the background, I hadn't realised the recorder (a Tascam DR-07) would pick them up. Links: https://fosdem.org/2014/ https://fosdem.org/2014/schedule/event/keynotes_welcome/ https://fosdem.org/2014/schedule/event/how_we_found_600000_grammar_errors/ https://fosdem.org/2014/schedule/event/wikivisualeditor/ https://fosdem.org/2014/schedule/event/postfix_lessons_learned_and_recent_developments/ https://fosdem.org/2014/schedule/event/net_ldap/ https://fosdem.org/2014/schedule/event/graphdevroom_analyzebio4j/ http://www.flickr.com/photos/sourdough/sets/72157640503490723/

CPrompt^ goes into how he found linux and never looked back... Fragfest : https://en.wikipedia.org/wiki/Fragfest Mandrake : https://en.wikipedia.org/wiki/Mandriva_Linux

encrypting: $ openssl bf -e < my_file > my_file.bf decrypting: $ openssl bf -d < my_file.bf > my_file

Over the years the image of the clock has been abstracted and stylized to a point where a long and a short line inside a circle, or even inside four dots on the ordinals, can be instantaneously recognized as a clock. This is perfectly fine if you already know how to read the analog clock but it makes no sense to use such a design as a teaching aid. As a teaching device, you need to make sure all the information that has been abstracted away has been put back. That is the basic principle of the ccClock The minute hand points at the minute dial All the minutes are listed removing the need to know the 5 or 15 math table The Clockwise direction is emphasized with arrows and text orientation. The two per day rotation of the hour hand is described using a concentric spiral The progression of day into night is indicated by recognizable icons of the rising and setting sun and moon The written format is described in the traditional dial digits The spoken form is described in speech balloons Links Dave Allen - "Teaching Your Kid Time" http://openclipart.org/ http://ccklok.nl/ http://ccclock.com/

New hosts There were no new hosts this month. id title host 1436 HPR New Year Show 2013-2014 After Show 1 of 4 Various Hosts 1437 HPR New Year Show 2013-2014 After Show 2 of 4 Various Hosts 1438 HPR New Year Show 2013-2014 After Show 3 of 4 Various Hosts 1439 HPR New Year Show 2013-2014 After Show 4 of 4 Various Hosts 1440 Creating a Key Pair - GUI Client Ahuka 1441 Jono Bacon and Stuart Langridge talk with pokey pokey 1442 Google Summer of Code Jonathan Nadeau 1443 Fahrenheit 0-100 Bill_MI 1444 What is Firefox OS? J. A. Mathis 1445 22 - LibreOffice Writer Other Frame Styles Ahuka 1446 Interview with Fernando H. F. Botelho from the F123 group Ken Fallon 1447 HPR Coverage at FOSDEM 2014 Part 1/5 Ken Fallon 1448 Intro to cable cutting Tracy Holz_Holzster 1449 Timelapse Video Peter64 1450 My Mobile digital life Knightwise 1451 Jeremy Allison ~ the SAMBA project Ken Fallon 1452 HPR Coverage at FOSDEM 2014 Part 3 Ken Fallon 1453 HPR Coverage at FOSDEM 2014 Part 4 Ken Fallon 1454 HPR Coverage at FOSDEM 2014 Part 5 Ken Fallon 1455 23 - LibreOffice Writer Other Page Layout Options Ahuka

This episode covers a little bit of everything. The end of life for Chromebooks and how that hurts in some ways, hacker public radio topics, CentOS and Red Hat joining, participate with a non mainstream GNU/Linux Distros, and much more. Here is a brief list of the topics and links covered in this episode: XFCE and Xubuntu is good, Crouton for Google Chromebook Chromebook EOL, WTF? I like the hardware but I want to use it until I'm tired of using it, I don't want Apple or Google telling me otherwise. Distro wise what's next? I'm not going to want to stick with Ubuntu much longer. CentOS, WTF? So on the server side what's next? Building your own distro from the ground up. It is a lot of work. Debian is by far still the best distro to stick with. I hope they don't jump ship. Bastion hosts are long gone, thank you and sorry Marcus J. Ranum. Make way for clusters, customized systems, but generic and widely supported desktops. Sounds like Slackware to me, right? GNU/Linux Distribution Timeline http://futurist.se/gldt/ http://upload.wikimedia.org/wikipedia/commons/1/1b/Linux_Distribution_Timeline.svg Bridge Linux http://millertechnologies.net/ Bedrock Linux http://bedrocklinux.org/index.html Indigogo http://www.indiegogo.com/projects/i-hate-being-single-season-2 NCIX.com https://www.youtube.com/user/NCIXcom Pod safe music http://www.freemusicarchive.org Configuration Management Configuration Deployment for Network automation http://packetpushers.net/show-176-intro-to-python-automation-for-network-engineers/ Duck Duck Go Goodies https://duckduckgo.com/goodies Ansible http://www.ansible.com/home

This is a neat little trick that I discovered that you can use to get really high scores on those "Find The Difference" games that they have at some bars (there's at least one in the Google Play store too). After I recorded this show I played to see just how high I could score, and I turned the score over.