kw807 : Youtube-Dl

We go into depth into one of the most powerful command line programs to delve into the treasure chest of cat video’s we call youtube. We explore Youtube-Dl, its capabilities and the vast combination of switches and parameters you can use to turn Youtube (and other video sites) into your personal b*tch.

Shownotes.

Command line overview 
Youtube Download 
youtube-dl <url of the video>

Youtube Download audio only 
youtube-dl —extract-audio —audio-format mp3 <url of the video>

Youtube Download search results (50)
youtube-dl ytsearch:”ted talks computers” 
–playlist-end 20 -R 50 

Youtube Download channel or topic (50)
Youtube-dl <urlfothechannel> —playlist-end 50 -R 50

Youtube Download ‘watch later que’
youtube-dl -u username -p password :ytwatchlater


Youtube Download audio only 
youtube-dl —extract-audio —audio-format mp3 <url of the video>

Youtube Download search results (50)
youtube-dl ytsearch:”ted talks computers”
–playlist-end 20 -R 50

Youtube Download channel or topic (50)
Youtube-dl <urlfothechannel> —playlist-end 50 -R 50

Youtube Download ‘watch later que’
youtube-dl -u username -p password :ytwatchlater

Subscribe : add
add “playlist-end 1 -R 50”

Make pretty : add
“ -o ”location/file/%(title)s.%ext)s”

Extract only the audio of a channel.
—extract-audio —format-mp3  “playlist-end 1 -R 50”

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kw805 : Whats in my bag ?

We return to the podcasting routine with a show that is packed with Gadgets and clever life hacks. Its time to turn our geek bag upside down and tell you not only what is inside of it, but also HOW we use it. Tune in and learn the secret of how to become the optimal, creative, productive and entertained digital packrat without shlepping around a portable datacenter on your bag. Hone your vulcan hearing as we tell you “Whats in my Bag” (and how do we use it).

Shownotes.

  • Intro
  • My routine
  • Whats in my bag
  • Less is more.

BONUS : The behind the scene “hangout” of this shows recording.

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Server Week: What is OSX Server and Why Would a Home User Need One ?

*By guestblogger Todd Oldhoff *

As someone who teaches about using OS X Server I get a lot of questions from home users about why they would even need a server in the first place. Most people perceive that servers are for big business operations. They are huge machines that sit in a dedicated room and are monitored by IT professionals who make sure everything is running smoothly and fix things when they break down. The whole process seems overwhelming and most feel they lack the expertise and spare room to even consider running a server. So why would a home user need to run it in the first place?

I want to start by saying this is a great question to ask and one that we should ask not only as it relates to servers but all of the software we use. If you don’t have a real need for an application you should just avoid it as it will only clutter up your hard drive and cost you money to purchase. Also, if at the end of this post you still don’t see the need for running a server than don’t do it. This article is designed to help you see what a server could do for you so you can truly determine whether the features fit any of your needs. So let’s get started with why you might want to run a server by looking at the hardware requirements.

One of the myths most people have about servers is they are huge machines that need dedicated rooms to run. The beauty of our current place in history is that servers can be run on very small hardware that won’t take up more than the size of a shoe box on your shelf depending on your needs. You can run OS X Server on a Mac Mini and have plenty of power for your home environment. In fact I would recommend using a Mini for home use because of the power benefits and it’s small size. I would however recommend getting at least 8GB of RAM and, if you can swing it, 16GB. With that you should be in great shape to run OS X Server. But server can also run on any Mac you have in the house so don’t feel like you have to purchase a new Mac to run server (unless of course your Mac is too old to run Mavericks). As long as you plan on leaving your server on and not move it around, you could even use a laptop.

Now that we have the hardware issue out of the way, let’s look at some of the benefits of running a server in a home environment. Each of these things should give you a good idea if Server is for you:

20100421_mac_os_x_server_default_homepage

 Wireless Time Machine Back Ups

If you don’t happen to have a Time Capsule or would rather have your storage space outside your router, you are out of luck when it comes to wireless Time Machine backups. Yes you could do some things to try to get it to work with an Airport Extreme Base Station with an attached drive but things could get corrupted and its not supported by Apple. With OS X Server you can designate any drive connected to your Mac Server to serve as a back up disk for Time Machine and the best part is that it is supported by Apple.

 Your Own VPN Service

With most of us spending a lot of time on unsecured public networks, fear of data being stolen over the air is a real concern. VPN creates an encrypted connection to the internet and protects what is sent and received over the air. OS X Server has a built in VPN service that you can use on all of your devices to make your remote web access secure.

Network Accounts

With most of us having multiple computers at home with multiple users wanting to access their stuff on those computers having the ability for any user to log into any computer on your network to access their files and desktop is a much needed service. With OS X Server you can create your own network accounts and host your user’s home folders on the server so they can access their own desktop and files on any Mac in the house. This really saves arguments over who gets what computer in the house. If you have kids you know what I mean!

 File Server

One of the first things most people think about when it comes to a server is gaining access to files when they are away from their main Mac and outside their network. With a server, you can designate any folders or drives as accessible outside your network and set who can access what files and folders.

 Manage Multiple Devices

Most homes have become mini corporate environments with multiple Macs and iOS devices. Managing all of those devices can be tedious and difficult to set up and maintain. With OS X Server you can manage all of your Macs and iOS Devices from a simple web interface and push changes over the air to your devices as groups or individual device profiles making managing devices a lot easier.

 Personal iCloud Service

For some people the idea of having all of their personal information online in the cloud somewhere makes them uneasy. What happens if a security breach happens with the service you are using? Instead of having those things on a hosted service, they may want to manage their own calendar, contact, iMessage and Mail Server. For those with kids this is a great way to help them get their feet wet in some of these services while you control what they can can’t see or do. Built into OS X Server are services to that allow you to manage these things and then sync your settings to all of your Apple devices.

 Personal Web Server

Built into OS X Server is a web server complete with a built in Wiki website that you can customize. You can also host your own websites with OS X Server though there are some challenges for home users depending on your ISP service and how they feel about home users hosting websites. But even with that limitation you could host an in-house only website that your family uses on your home network only to share things. Another great way to get the kids used to using a website and publishing to it in a safe environment.

 As you can see there are a lot of different uses for OS X Server for home users. If you saw anything in there that you could take advantage of, then OS X Server is for you. You don’t have to use every service to run server but can pick and choose what works best for you. For those of you that like step by step instructions on how to set all of this up, I have a Youtube Channel where I do just that. You can check out more information on my website or on my Youtube Channel. If you choose to get started and get stuck along the way feel free to send me an email or leave a comment.

 About Todd.

Todd Olthoff is a Mac enthusiast who loves to pass on what he has learned to others. He regularly produces screencast tutorials on his website and on his Youtube Channel. He is also a regular contributing screencaster for ScreenCastsOnline and for MacStadium a Mac colocation company.

 Links.

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Switch Week : Export your iWorks documents.

You might not know it, but one of the greatest ways to sell an application is not only by making it a very good application, but also by using an enclosed file format. Its funny, but the majority of decisions in small businesses of whether to migrate to a newer version of office, is fuelled by the argument that “other people use office an its needs to be compatible”. That way a commonly present, closed file format used by a certain number of users ..ensures long time sales of your product.

iWork

With Pages Numbers and Keynote, Apple chose their own file formats to use. That also creates kind of a “legacy” problem. Part of that problem is that you need to be able to open / share your documents with other iWork suite users and part of that is that you need the iWorks suite to be able to open your own documents. Being able to break free from that locked in loop gives you the flexibility not only to exchange documents with others who do NOT have the iWorks suite, but also to make sure you can open those documents on your other computers that aren’t macs.

How to do it.
iWorks documents don’t ‘slide’ very well across operating systems. iWorks suite is capable of opening .doc .xls .ppt .rtf and .txt formats from other programs like the Microsoft Office suite and Openoffice (beware : Open document format is NOT supported). The other way around is a lot harder : No applications outside the iWorks suite are capable of opening and editing Apples closed iWork suite file formats.

What is the workaround.

Luckily there are the EXPORT options that allow you to ‘export’ your iWorks spreadsheet, document or presentation to a more open file format so you can open them up with non-iWorks applications.
supported formats – suggested formats

Pages documents can be exported to.

  • PDF
  • DOC
  • RTF
  • TXT (not all versions of iWorks support this)

Depending on the file format you export to you will loose more functionalities and layout options. The PDF export gives you a document with all the layout but without the ability to edit, the other file formats have less and less of the .pages layout and markup options in favor of being able to edit the text.

Numbers spreadsheets can be exported to : 

  • PDF
  • XLS
  • CSV

The same is true here, the farther you go down the list the less functionalities you can export. PDF gives you a read only document, XLS gives you the ability to open and edit the document in applications like Excel, Google Drive and Open Office. You might still have your graphs and pie charts but they won’t look as nice. With CSV you export your spreadsheet to a flat file with all your data separated by comma’s.

Keynote presentations can be exported to : 

  • PDF
  • PPT
  • Quicktime
  • HTML (not all versions of Keynote support this)
  • Images

With Keynote you can export your presentation to static images, or a pdf document or to a Quicktime movie giving your viewers the total presentation experience. Only when you export to .ppt will you be able to edit your presentation slides. When you do the latter you will loose some of the mark-up or effects of your presentation.

You win some you loose some.
With an “export” you go down to the lowest common denominator of functionalities between the different applications. Whatever .pages can do with a document that Word cannot .. Will be lost. Most of the times your documents will still be editable but they need “touching up” after the exports. Other times you might find that certain transitions or effects that are unique to the iWorks suite are completely gone or do not work.

Be open in the choice of your applications.
So if you don’t want to go live in proprietary-file format-purgatory we suggest using “open” applications as much as possible. Openoffice and Google Docs are largely geared towards cross platform availability AND the ability to be compatible with many other ‘office like’ applications. If you have to share your documents with others, be polite and use “open” file formats like .pdf .doc .odf and even .rtf .html or .txt. This way you assure that the other party can read (and if needed, edit) your document without having to run to the store to buy iWorks (and quite possibly a new Mac). Using open filestandards shows “digital maturity” and ensures that you can still open that essay that you wrote on your old mac .. on your brand new Chromebook, Windows Tablet or Linux PC.

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Switch week : Linux on the iMac and more.

I love Apple products. Seriously. I do. They have liberated me from a life of ONLY using windows into a world of creativity and ease of use. Over 8 years ago they made helped me switch from a life of cleaning up temporary files and cookies on Windows 2000 machines to a computer environment that allowed me to compose music, record podcasts, edit video’s and do so much more. On a Mac it ‘just worked’.  I still use Macs today. The high quality of their hardware is exceptional but unfortunately , so are their prices. Over the years a rift has arisen between what I demand of an operating system and what Apple has to offer. The fact that I have become a slider , who switches from OS to OS to get stuff done is not always very compatible with some Cupertino’s hardware and software interoperability’s. (Read : vendor lock in).  Luckily I am free to choose : I hop from Linux to Windows to OSX and use the best operating system for the task. I’m free .. free to “leave the walled garden” when I want to. 

We love our iMac.

So when my beloved wife started to notice that our 4 year old iMac was getting a little slow, I started to wonder what I could still do with it. Although I can still install the latest version of Mavericks on the machine, I do hear the silent whispers from Cupertino calling to “Buy a new Mac”.  Perhaps that would not be a bad thing. Sell it off second hand and buy a new one. Problem is : its a 24 inch iMac. It fits wonderfully on my wifes desk and brings her a lot of joy. The options we have is buying a smaller 21 inch or a bigger 27 inch iMac. In both cases we would have to spend valuable cash for a small speed increase.  Was it worth it ? I decided to ask the most important question I ask ANYONE who needs a new computer : 

What do you use it for ? 

To be honest : Niejana doesn’t use the Mac for that one thing that makes a Mac special : A reliable multimedia workhorse. She uses it to surf , do administrative tasks, manage her emails , her photos and stuff like that : No Final Cut Pro , Logic or any other of the great Apple production tools.  So I asked the question : Why not keep the machine but ditch the OS ?

_niejana_s_imac_after_a_couple_of_hours_of_tinkering.__Can_you_spot_what_s_odd_in_this_picture_on_February_16__2014_at_0857PM_by_Knightwise

Time for a light weight alternative.

Linux is the obvious answer. It runs on almost anything and has a high degree of versatility. Its many graphical interfaces are strange, alien and mostly built for and by geeks. But that was not what we wanted : The goal of this project was to offer the SAME experience .. only faster. So what LOOKS like OSX but IS in fact Linux. The answer : Elementary OS.

Elementary OS :  ‘I-can’t-believe-this-is-not-osx

So I bit the bullet, downloaded the 64 bit version of Elementary OS and installed it on the system. (No dual boot, no nothing). I don’t recommend going through this route if its your first time running Linux on a Mac. ( See our “Dual boot” articles to learn how) Elementary LOOKS like OSX and is a beautiful combination between the complexity (and power) of Linux (Elementary is based on Ubuntu 12.04) and a simple interface that LOOKS like OSX. 

Making it look right.

Installing the standard tools Niejana uses ( Chrome, Thunderbird, Openoffice, access to Gmail and stuff) was not hard, because we largely use “slider friendly” applications in this house. Next morning I just pointed at the machine, told her the “close” button was gonna be on the other side of the windows, and left for work.

Time to jump the walled garden.

So was I done ? No, I was just beginning. This is a cross platform household with Macs, Linux machines and Windows machines. That meant I also need to “liberate” all the data from iTunes and  iPhoto into an environment that would be accessible to both our remaining macs AND our linux machine. 

So hang in there.

This week you will get more tips and tricks about “liberating” your data from a proprietary application like iPhoto, iTunes, iCloud and others so you can access them in a “slider-friendly-world”.  Installing Elementary was just the beginning. Because whoever told you can only play YOUR music in CERTAIN application on SPECIFIC hardware … was wrong.

Links :

 

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kw801 : Cross platform security.

We start off season 8 with a great topic on Cross platform security. Many of us think that we are safe from mall ware or viruses because we don’t use vulnerable operating systems. Good friend of the show Emmet Steward is here to tell us, that this is not the case. We talk about cross-platform security hazards and, more importantly, how to protect your system and be safe.
 
Emmet also talks about a great course called ‘Hackitplus’ where you can enrol to be a white hat hacker and learn all about penetration testing, security and … ethical hacking. 
 
We also have Konrad Dwojaks weekly photography tip : This time on keeping your gear safe in cold weather.
All in all : a great show to kick off season 8 of Knightwise.com
 
Shownotes.

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GAME WEEK : Cross platform terraforming with Minecraft.

Today we focus on one of the more addictive cross plaform games : Minecraft. Telling us all about minecraft is guestblogger Matt ( better known as Turtles) We will stand back and let him do the explaining.
 
My first minecraft experience was amazing and I remember the day well. I was looking around for a new  game to play on the xbox 360 something creative, what I found was much more. Minecraft was at the time  on sale which was a bonus, however minecraft is a game I would pay full retail for and in Australia  that is close to $100. Its now 2 years into playing minecraft and the feeling has not changed. I still  enjoy being dropped into my own world where I can mine and craft to my hearts content. 
 
minecraft
 
Minecraft is a game where you start with just your character, the world loads around you in chunks of  grass and trees. After a few seconds you realise just how expansive the world you just seeded has become. In creative mode you can fly into the air to see your world, or you could simply explore for yourself. On these adventures you might come across some animals which provide to you raw meats anditems which you will need to keep yourself save and well fed. I would suggest to start building a house first as when night falls you will be in for a big surprise. Night time is when the monsters of minecraft come out to play.

I started off playing creative mode minecraft this is where you have access to every block and item that is currently in the version you are playing. With all these blocks available to you, you can craft anything and the only limit is your creative self. The first thing I did in minecraft was to build a house and a bed so I was nice and safe from those pesky little monsters. Little did I know in 
creative mode there are no monster mobs spawning at night and therefore is a nice mode if you just want to create a massive tower; a nice house or even create your own mini games. 

When you get used to minecraft on creative mode and looking for a tougher challenge the next step is  Survival mode, with 4 levels of difficulty which are peaceful no spawing monsters up to difficult. Unlike creative mode here is were the real game gets you hooked. You will start with no tools, blocks or information, you are however given a map which is empty. From this point on the game will only progress with the work you perform within the world. Sit back and wait for dark and monsters will keep attacking you. Get in early and start building your house and a bed and in no time you will be safe from the onslaught you will see when the sun sets.

Singleplayer minecraft is a lot of fun as you can move along the timeline of your world as quickly or as slowly as you see fit. You are mining and crafting items for yourself which can take up precious time you need to collect other valuable resources if only someone could help you. Well in Multiplayer  the entire experience changes, not because you have a friend to mine resources you also have an enemy waiting to attack you. Be careful if you find gold or diamond your friend might want those for  themselves. With a few swings of a stone sword your hard work might just become someone’s ill gotten gain.   

There are so many features in the game that just need to be experienced by the player, with the game still in development there really is a lot more content that can be added. With the over world (main seeded world) which contains villages, dungeons and very different biomes (Rain forest, Forest, Desert, Sea, Caves, Solid Ground, Mushroom) all these biomes have different creatures and blocks you would need to mine in order to build your wildest creations. The current version 1.7.2 has most of the features above along with many types of animals, all of which are interact able and can be used for food, security(Wolves), or just to admire.

So to sum up Minecraft the game is endless fun for all ages I spent roughly 2 hours a day playing Minecraft with my niece over christmas. I must say it was one of the highlights of my holidays. Fishing a close second.. I want to finish off with my top 5 favorite things to do in minecraft.

1. Wolf Pack: Using bones collected from skeletons to be-friend a pack of wolves, then running around and attacking other animals to watch the wolves attack. Same with monsters spawned.

2. Pet spawning: this is where you get two animals of the same kind and you fence them. Then you make them enter love mode. After a few seconds a smaller younger version of these animals appears.

3. Creepers: While these are monsters the creepers will just pop up on you, you will here a hissing noise followed by a big explosion. Normal reactions are “Oh Crap!”, “ARRGGHHH!” , and “NOOOOOO”

4. Traps: Setting up pressure pads connected to TNT, which can be used to destroy someones creation or simple to have fun with dispensers.

5. Mini Games: I have seen many YouTube videos with free maps you can play that have multiple mini games, designed to use normal minecraft items to advance through levels.

About Matt : (A.K.A Turtlez) Age: 26

I have been a gamer for quite a few years now close to 14. I enjoy playing both online and offline games with friends. I have been mainly a PC and Xbox gamer with a tendency to play mostly First Person Shooter games, however I have branched out recently to third person hack and slash games. I also have been enjoying 2K’s NBA2k range of Basketball games, as well as Formula 1 games. Growing up in my household my father enjoyed working with computers and IT equipment which meant I spent loads of time doing the same as a kid. I now have an IT Based job in Australia working with an IBM Mainframe as a performance tester. I still to this day enjoy getting a gaming session in on a weekend or even after dinner when the time suits me. I first cut my gaming teeth on the good old Counter Strike 1.6 and Team Fortress 2 (A.K.A Team Fortress Classic). I then moved onto the newer versions of these games years later and expanded to Battlefield 2. Now I have a list as long as a stack of cases with all the games I currently play. The major of my time is spent playing the following: Battlefield 4, Team Fortress 2 (Source Edition), or Counter Strike Source , NBA 2k13 or 2k14 Formula 1 2013 (Usually driving in full GP length races with my cousin online) GTA IV, Forza, Ryse when I feel the need for change. Matts online coordinates : Xbox Live: TurtlezPantz – Steam:  zyther (Screen Name Turtlez!) – Raptr: TM_Turtlez

About Minecraft.

Minecraft is a cross platform game. (to play it you just need Java on your machine) You can DOWNLOAD IT HERE.

There are also many completely FREE and open source alternatives to the “original” minecraft that might be more suitable for your system (or your budget) : choose from one of the many other alternatives out there in THIS list

 

 

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Game Week : “Frag the Axis” on “Return to Castle Wolfenstein”.

Loooos Looos Loooooossss !!!! We used to shout it across the office at lunch break. Our boss didn’t even notice anymore and our cleaning lady tended to leave the building whenever we were playing. I am of course referring to the endless lunch breaks at my old job, spent playing “Castle Wolfenstein” in multiplayer mode. Forming small teams of German or Allied soldiers and trying to invade bunkers, steal documents or liberate prisoners. I LOVED Castle Wolfenstein, both in its Single player mode (Fighting Nazi’s and Zombies) or in online multiplayer mode. Ok : Nazi’s and Zombies does make it sound like Wolfenstein was a mix between “The Walking Dead” and “Allo Allo”… but it is nothing like that.

enemyterritoryfeature

In multiplayer game mode every teammember in our office-battalion had a specific function. Engineer, Medic, Soldier … and “That guy with the bazooka”. That guy would be me. From a tactical viewpoint you used the bazooka to gain entrance to a bunker. Once inside you would dispose of the Bazooka and respawn as a medic or a soldier .. Not me : I used the Bazooka everywhere. I was lethal in close quarters, both for my enemies, my teammates and my own health. This strategy turned me into a “loose canon” on the battlefield, terrifying both my teammates and my enemies equally. I built up quite a reputation that way 🙂 Good times , Good times indeed.

Now YOU can have a crack at Zombies, Nazi”s and Allied forces. Fire away on your Mac, your Linux machine or your Windows desktop. Download Castle Wolfenstein Enemy Territory here … LOOSSS LOOSSS LOSSSS !!!!

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Game week : “Open Arena” Cross platform Quake3 Fun !

If I say the word “Rocketjump” and you have no idea what it is  ? … Then you seriously need to read the next post. In day two of our cross-platform gaming week we point you toward the reincarnation of one of the best first person shooters ever created. We are talking about Quake 3. A fantastic, high speed, fast moving, addictive, life-eating, relationship-destroying, girlfriend-infuriating game that kept us ALL up till dawn back in the year 2000. Quake is one of those “shoot anyone that moves” games that had a massive online following. No matter what part of the world you were at, there was always a server where you could log into and fire frag and respawn to your hearts desire.

I remember fondly how I would “get rid of my girlfriend” by taking her home at ten .. coming back to my apartment and start playing Quake 3 till 4am while eating Nacho’s and drinking coke.  Quake is fun, addictive and has eaten a big part of my life I can never get back.  And i had such a good time… I don’t even care 🙂 

open_arena

Now you (and your cross platform buddies) can have a go with “Open Arena” a free, open-source and cross platform friendly port of the old Quake game. It might not be as fancy as your newest Xbox one game, but EVERY first person shooter is in some way or form a descendant ( I feel the urge to say “Derivative”) of the original Quake 3.

Feed your dog for the next three weeks and kiss your job goodbye. Download and play Open Arena .. for free HERE.

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