Category: Computers

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How to mine Bitcoin in Ubuntu using OpenCL and Bitcoinminer.py

Bitcoin is a form of decentralize digital currency, so unlike other digital currency services (like e-gold), bitcoin is not susceptible to be frozen, seized or invalidated. Bitcoin can be transfered transfered directly from person to person directly without intermediaries.

Bitcoin are generated over the internet by application called bitcoin miners using a set of algorithm to ensure that the number of generated bitcoin is within predictable and limited range. Though with the numbers of bitcoin in circulation today means that it would require significant processing power to generate bitcoins, it doesn’t stop anybody who are willing to try and mine them.

For a brief introduction to Bitcoin, please watch :

Bitcoin Miner on Ubuntu ?
Enter OpenCL and Bitcoinminer.py which allows bitcoin to be mined using a much more efficient GPU power (certain models of Nvidia and ATI graphic cards only, with appropriate drivers).

Step 1: To install the miner, you need to “install python-pyopencl subversion.

Step 2: Then you need to use subversion to obtain python-jsonrpc, by running:

svn checkout http://svn.json-rpc.org/trunk/python-jsonrpc
cd python-jsonrpc/
sudo python setup.py install

Step 3: Then you need to generate bitcoin.conf file:

cd ..
mkdir .bitcoin
echo "rpcuser=username" > .bitcoin/bitcoin.conf
echo "rpcpassword=password" >> .bitcoin/bitcoin.conf

Step 4: After that, download BitcoinMiner files

wget --no-check-certificate https://github.com/m0mchil/poclbm/raw/master/BitcoinMiner.cl
wget --no-check-certificate https://github.com/m0mchil/poclbm/raw/master/BitcoinMiner.py
wget --no-check-certificate https://github.com/m0mchil/poclbm/raw/master/poclbm.py

Step 5: Download bitcoin server for linux

wget http://iweb.dl.sourceforge.net/project/bitcoin/Bitcoin/bitcoin-0.3.19/bitcoin-0.3.19-linux.tar.gz
tar xvf bitcoin-0.3.19-linux.tar.gz
~/bitcoin-0.3.19/bin/64/bitcoin -server&

Step 6: Then finally, running the miner

python poclbm.py -d 0 --user username --pass password

The parameter -d 0 denotes that the miner will use GPU #1 for its bitcoin mining generation, increment it to -d 1 for GPU #2 and so forth. Change the “password” and “username” parameter from Step 3 and Step 6 appropriately to keep people from reaping the fruits (read: steal bitcoins) of your mining operation.

For more information about mining bitcoins and about Bitcoin in general, please visit : WeUseCoins website

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Enable Hardware Notification on Ubuntu Desktop when plugging devices – udev-notify

udev-notify enables hardware notification on desktop whenever devices are plugged to the computer. It provides a convenient way for users to get visual feedback on whether the devices has been successfully recognized by the computer or otherwise.

udev-notify is known to be compatible with Debian and Ubuntu (to some extend Fedora 15) under GNOME and XFCE. udev-notify display the type,name and model of the device connected and recognized by the computer on the desktop.

Udev
Udev
Udev
Udev

Installing udev-notify

echo "deb http://download.learnfree.eu/repository/skss / #SKSS" | sudo tee -a /etc/apt/sources.list
wget http://download.learnfree.eu/repository/skss/repo.pub.asc -q -O- | sudo apt-key add -
sudo apt-get update
sudo apt-get install udev-notify

And you may try plugging in devices to your computer to see if it works!

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Create Professional Photo Slideshow DVD in Linux with Imagination

Imagination is GTK+ 2 application which enables you to create professional DVD Photo Slideshow. Imagination contains many transition effects that can turn your photo collection into breathtaking multimedia presentation.

Imagination

 

Imagination can output video in various video format and codec supported by FFMPEG including (but not limited to) :
* FLV
* MPEG
* AVI (various codec)
* MKV
* OGG Theora

Imagination is included in Ubuntu repository and can be easily installed using Synaptic or apt-get to install it

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Setup Free Web Proxy Service with Glype (PHP Script)

Glype is a web-based proxy script written in PHP which allows user to browse the internet anonymously using a web-based user-interface. Website operator can easily setup web-proxy without the need to go through complicated installation procedures.

Glype Proxy Service

Among the feature of Glype Proxy Script are:

  • No Installation – Just upload and done!
  • Javascript support – Allows website to keep their javascript functionality
  • Blacklist by IP – Admin can easily block users by IP address range
  • Virtual browser – allow user to change user-agent and
  • Server-side caching – Reduces bandwidth and server loads for frequently accessed website

Download Glype from its official website