ImageMagick: remove alpha and flatten

mogrify -flatten -type Grayscale -alpha remove *.tiff

rsync: copy files with a given extensions

rsync -zarv --include="*/" --include="*.h" --exclude="*" --prune-empty-dirs /home/marcin/cpp/bitmonero ./test

SPSS: Automaticly change string variable to group/categorical variable

autorecode variables = TheStringVariable /into GroupNumber.

Make python 3 virtual envirnoment on Ubuntu 15.10

sudo apt-get install python3-venv python3 -m venv ~/mypy34env/ source ~/mypy34env/bin/activate And then install python packages using pip, for example, pip install ipython

Ubuntu: vncviewer command line tool install

the vncviewer command program is in this package:sudo apt-get install xtightvncviewer to use it vncviewer with ssh tunnel: vncviewer -via remoteusername@vncserverip localhost:1

Ubuntu: vncviewer through ssh

vncviewer -via remoteusername@vncserverip localhost:1

Ubuntu: Start chromium in new profile / instance

chromium-browser --enable-udd-profiles --user-data-dir=~/.newchromeprofile

Compile latest bitmonero source on Ubuntu 14.04

The gist shows how to compile latest monero source code on Ubuntu 14.04.

Mining monero through Tor in Ubuntu 14.04

Mining Monero through Tor can be easly done using proxychains-ng (also called proxychains4). sudo proxychains4 /opt/cpuminer-multi/minerd -a cryptonight -o stratum+tcp://mine.moneropool.com:3333 -u YOUR_WALLET_ADDRESS -p x
Instructions how to install proxychains-ng on ubuntu are here and how to cpu miner for monero are here.

Testing if it works

To check if it works, I will assume we use the following moneropool. First lets check IP address for the pool address: mine.moneropool.com Note that you may have different IP addresses, as the pool is on the Amazon cloud and the IP can be different. Having the IPs lets use iftop to monitor our outgoing connections. If you dont have iftop, install itsudo apt-get install iftop First, lets check the iftop (run using sudo iftop) window when we run the minred miner without proxychains and torsudo /opt/cpuminer-multi/minerd -a cryptonight -o stratum+tcp://mine.moneropool.com:3333 -u YOUR_WALLET_ADDRESS -p x When using the minerd without tor, we should see Amazon servers in the iftop window since the miner connects directly to the pool:

As can be seen, some of the servers were found in the nslookup for the mine.moneropool.com.


Now, lets see what happens when we use proxychains:udo proxychains4 /opt/cpuminer-multi/minerd -a cryptonight -o stratum+tcp://mine.moneropool.com:3333 -u YOUR_WALLET_ADDRESS -p x

The Amazon's servers are gone from the iftop, since the minerd connects to the Amazon servers using our tor. Instead of Amazon names, we see an input tor node.

Install and test proxychains-ng (or proxychains4) in Ubuntu 14.04

To download, compile and set-up do the following:

To test the proxychain
For example using iftop. Run iftop in a second terminal window: sudo iftop Now run elinks https://ipleak.net/ and check what you see in both the elinks and iftop. You should see your real IP in the ipleak test, and iftop should show that you are directly connecting to ipleak.net as shown below:

Now do the same through proxychain:proxychains4 elinks https://ipleak.net/

And we should see that iftop shows we are connection to an entry tor node, and elinks should show are tor ID, instead of real one.