How to buy Bitcoins in Australia | how to trade in bitcoin in australia

I recently started playing around with Bitcoin, being new to it all I had no idea where to start. 

First questions which pop up are

  • Where to buy
  • How to Sell
  • Locations
  • Phone apps
  • Wallets
  • Backup your coins

Just to list a few. So I thought Id document the process which I used to get started.

I bought my coins from the location news agent. The site allows you to buy and sell bitcoins from many different locations. It has a map which lists all the sites.

So to start with you need a phone app (thats the easiest option), I used the stantard bitcoin app located on the Android app store. The app is also refereed to as a wallet. Lose your wallet, lose your money too!

The application itself has several levels of security, some are standard and some need to be setup.

  1. You can set a password or pattern for accessing the application while your phone is unlocked. This helps for when your phone is stolen while unlocked or when your kids get it and start playing around with your applications.
  2. Pin for sending funds. This complements the first option. Also stops you sending your coins by accident because you need to go to the extra effort of entering a different pin.
  3. You wallet is on your phone, so if you phone gets lost your wallet is also gone. So you need to backup your wallet on a regular basis. When you backup your wallet you also password encrypt it.

After taking all these three options into consideration you realise your money is much safer than your physical cash in your physical wallet. Just dont forget your passwords!

Also I should mention what there are two types of wallets, online and offline. The above mention method is offline, this means that all the coins a located on your device. No one online can take them nor do they have power of when and where you use them. The online method is when your wallet is on a server and you simply use it, as a managed service. The benefit to this is security that if your device gets stolen your coins are safe, the disadvantage is that if the site/server gets hack, so do your coins.

When you hear about millions in stolen coins online, thats what they mean. You can go one step further and transfer your coins to an wallet which you store on a usb stick and sits in your safe, this is a completely offline method and considered to be the safest.

Next is our buy method. I purchased my coins from, its reputable and safe. One thing to take into consideration when buying bitcoins is the fees and charges, they are insane. I purchased $1000AUD and when it finally arrived in my wallet it was around $800AUD. When transferring funds there is also the network transfer fee, which is a percentage of your transfer amount.

So once your coins arrive in your wallet, BACKUP!!! Be careful, once you run the backup function on the application it will ask you where you want to copy the backup. Alot of people will email it to themselves or copy it to your dropbox account. Im not going to judge, but remember security is only as good as your weakest link. If a hacker gets your email details or dropbox details they also have your money. My recommendation would be to copy it to a memory stick which you keep in a safe place at home. Its the safest option.

On your bitcoin application there is a section called “Your Address”, there are a number of hashed codes lined up. They are the codes you may give to people to send you coins. They are completely harmless, no one can do anything with them other than send you coins. These are the codes you see posted on some sites when requesting donations.

I use an application called CoinCap, it allows you to see the exchange rates for most of the bitcoin currencies. Also displays the trends over periods like days, weeks and years which makes you cry a little thinking about what life would be like if you bought at the beginning. 

 I found that putting all your money into one currency was a little boring, you can exchange your bitcoins for other currencies like Ethereum or Monero. You make the exchange using an app called Shapeshift.

I did find that once one of the currenecies stopped growing, another would go through the roof. If you quick enough you can make some cash. The other days Bitcoin stopped, so I put it into Ethereum which continued to grow. But you need to take the transfer fees into account.

You need to keep in mind that there are additional processing fees and that Shapeshift can takes Minutes, Hours and even days to process your requests.

Also need to understand that you may need a different wallet based on the currency your converting to. So you will need to visit your app store and search for the currency your trying to trade with and download the wallet.

Shapeshift will then issue you a bitcoin address you need to deposit the fund into and a wallet address of the intended currency you wish to buy into.

As far as converting Bitcoins to cash, I have not done that yet. But the site has the option available and allows you to specify your BSB and Account number. So the fund will be put back into your banking account. Im not sure about the fee which will be charged or the time it will take. Id assume it would take a few days.

Hacking the Dremel 3D20 3D Printer to take different filament | Hacking the dremel 3d20 3d printer for larger filament.

I have written a product review of the Dremel 3D20 here, its overall a very good printer. I have been using it for some time now and Im really please.

It does have one really bad attribute, the fact it can only use Dremel filament. There is a huge cost to this problem, Dremel  filament cost around $140 AUD for half a kilogram. Looking on Ebay you will find 1KG for around $20, so the price difference is HUGE.

Whats stopping you from using aftermarket filament? Nothing really except the housing in the Dremel. Its built to only take a Dremel drum.

So…. To get around this problem you can print new housing which will hold the drum higher, these plans are available to download. Problem is there are many different sized drums available too, I fixed this by designing a spacer which accommodates for the drums I purchased.

I have included photos of the different parts and also a step by step instructions on how to perform the upgrade. Here is the link to the .stl plans which I used to print the new bracket. I have submitted my plans here.

I have been using the new hacked system for some weeks now, its flawless. The only thing you may need to take in to consideration is the new filament you purchase. I noticed that it did not stick well during my prints, it also left a lot of the edges stringy. The work around for this was to increase the temperature from 220 to 230 degrees, the results were instant. I think this is the case with all 3D printers. You will need to make these adjustments to improve your designs. 

The finished product feels and performs superior to the original which comes across as a little small and flimsy.

You will notice the picture on the right that the drum sits too low, thats why we printed the addition spacer which I designed. This lifts the drum above the floor level to allow the filament to flow easy.

This guys has performed a step-by-step video on youtube on how to perform the upgrade, very detailed and informative. Watch it here.

Also, this is a link to the ebay filament which I purchased, its around $20 per 1kg. This is really cheap, and as mentioned earlier works well for me. Link here.

Here is a quick breakdown of the effort required, use the photos as a guide but the youtube clips explains it well.

01. Remove the back cover underneath.

02. Once removed, locate the holder, its hidden a little.

03. These are the screws you need to remove.

04. This is what the spacer looks like.


Its not a huge job, overall it will take around 5 minutes. Well worth the effort.


Solaris setup a NFS client and server | making a NFS client server environment in solaris

A quick howto for setting up NFS on a Solaris server.

This is relatively easy process, sometimes can be problematic due to firewall rules and services running on the system

Lets enable and start the services.

This will create the create and share it to the world, for this exercise I didnt specify source IP’s. You can do that later once you have everything working.

To confirm the share is now active

Ok now jumping on the client side, lets mount the share.

Lets see the mount

Done! Enjoy!

The best Raspberry Pi Case Ever! | single unit raspberry pi case includes power

I have looked at a number of Raspberry Pi cases, they all have one thing in common. They have a box (the raspberry pi itself), a USB cable, and an adapter at a minimum.

I wanted to create a unit which will improve these shortcomings for three main reasons.

  1. To look cleaner, neater,  and safety.
  2. Can be installed on sites where you are completing a security audit, the unit will not come under suspicion because of it looks.
  3. Cooling, performance and the ability to expand hardware inside the unit itself.

I used FreeCAD to design the 3D printable design and a Dremel 3D20 printer to print it.

I have made around three designs which I improved on each time, landing on the one published here.

The print contains a space for a Samsung USB power plug and a section for the USB connector, it contains a grove to allow it to sit firmly in place.

The Raspberry Pi sits on four poles which hold it firmly in place, and also allows you to connect the cat5 connected and four USB ports at the bottom.

I have build three slits on the bottom of the cover and three at the top, this is a clever wait to passively cool the Raspberry Pi. The air inside will heat up and rise, then exit from this top slits. This will then create a suction from the bottom, taking in the cool air. No need for a fan! Test proved to be promising.

I am really pleased with the design and use it at home.

I have plans to make it alot smaller, as you can see from the photos the biggest problems are the size of the adapter and the plug into the Pi itself. I have ordered smaller and cheaper power plugs and some L shaped USB connectors. This will allow me to design the casing to be alot smaller, ill keep you posted.

To make this project happen you need the following


Solaris Beginner working with boot up and zones | solaris beginners zoneadm startup boot sequence

I needed to work on a Solaris environment recently, something I have not done in a long time. The servers themselves were all in a faulty state in the datacentre, so I thought Id document the process as to what I did to bring them to life again. 

Basically its a little Solaris howto, getting the boot process kicked off and auditing what zones are on the system and booting them too.

Connecting to the lights out management card via ssh reveals the following prompt. The default username and password for the console is root / changeme.

Typing the following give you the console

If the machine has not booted, type the following.

You should now see the machine begin the boot process.

Now you want to SSH directly into the OS. We want to quickly perform an audit to determine what we are dealing with. Lets work out what version of Solaris we are dealing with.

Now lets see what storage is mounted and available space.

Its good to know how long the system has been running and what kind of average load is on the system

Lets figure out the networking of the system

We also need to work out if there are any zone alive on this physical host, using the following command.

One of the zone may be in an off state, you can bring it to life by.

and you can shut down live system with the following.

If you know the IP of the zone, you may SSH directly to it. Alternatively you can bring its console up by using the following.