Debian, Ubuntu et al.

Yes, Unetbootin is a great tool, but for some reason I can't get it to work in Debian. Fortunately you can achieve the same by using the command line and it is nearly as straightforward as using unetbootin. First, we want to get the exact name of our USB device. sudo fdisk -l The output should be similar to mine. Disk /dev/sdb : 2013 MB, 2013265920 bytes  Now that we now the location, we want to write our .iso or .img file to the USB. dd if='/home/user/Downloads/linuxmint-201403-mate-dvd-64bit.iso' of=/dev/sdb This will take some time, so be patient and do not interrupt the process.

The Problem For several reason I do not have access to LAN and thus have to rely on WIFI for my mining rigs. It is fine for most of the time, but the shit hits the fan, when the connection drops for one reason or another. The Solution #!/bin/bash wlan=`/sbin/ifconfig wlan1 | grep inet\ addr | wc -l` if [ $wlan -eq 0 ]; then service network-manager restart else echo WIFI IS UP fi Note: It's either wlan0 or wlan1. Check with sudo ifconfig . Save the script and make it executable. sudo chmod +x filename.sh Now there are several ways of making sure that our script is being executed every x minutes. The easiest way of accomplishing that I think is by using the command watch . sudo su watch -n 600 sh filename.sh What it does is execute our filename.sh script every 600 seconds. Or you implement a so called cron job   sudo crontab -e Add the following PATH=/usr/sbin:/usr/bin:/sbin:/bin */5 * * * * sh /home/username/filename.sh */5 * * * * means that

Recently I wanted to add a watermark to one of my videos. Obviously there are two possible ways of achieving this in Linux.   Sample Watermark Via command line avconv -i input.mpg -vf “movie=watermark.png [watermark];[in][watermark] overlay=0:0 [out]” -c:v mpeg2video -an output1.mpg  Via Openshot (text) Openshot Video Editor is a free, open-source video editor for Linux licensed under the GPL version 3.0. http://www.openshot.org/ sudo apt-get install openshot Open the program. CTRL + T Choose Footer Create New Title: <Enter your watermark> First color option: Pick your desired colour Second color option: Set Opacity to 0 Apply and drag and drop to Track.

import time print time.strftime('%I:%M%p %Z on %b %d, %Y') Printing Time in Python more about the time module: http://docs.python.org/2/library/time.html

Generate RSA keys on Client mkdir ~/.ssh  chmod 700 ~/.ssh  ssh-keygen -t rsa -b 4096 Transfer Client Key to Host ssh-copy-id username@host Test ssh username@host Disable Password Authentication On Host sudo nano /etc/ssh/sshd_config Look for <#PasswordAuthentication yes > and change it to <no> . Restart SSH sudo service ssh restart DONE