webcam brig belalp valais switzerland webcam birdcam crans-montana valais switzerland webcam berner oberland heimberg bern switzerland webcam berner oberland bern switzerland webcam events brig belalp valais switzerland webcam randogne crans-montana valais switzerland

10Gb Home Network (P3) – Build A Switch

Sunday, 22 April 2018

Build a 10Gb network switch for home or a Small Medium Business (SMB). Part 3 in 10Gb Home Network Series that shows you how to leverage 10Gb now, avoid pit-falls, and keep things affordable.

Learn More / Full Story >>

Raspberry Hot Backup

Sunday, 15 April 2018

#!/bin/bash
# Usage instructions at http://www.megaleecher.net/Best_Raspberry_Pi_Hot_Backup_Shell_Script
# This version disables backup image compression as it takes too much time on Pi, to enable uncomment the relavent lines
# Setting up directories, Just change SUBDIR and DIR varibales below to get going
SUBDIR=raspberrypi_backups
DIR=/media/ExternalHd/$SUBDIR
echo “Starting RaspberryPI backup process!”
# First check if pv package is installed, if not, install it first
PACKAGESTATUS=dpkg -s pv | grep Status;
if [[ $PACKAGESTATUS == S* ]]
then
echo “Package ‘pv’ is installed.”
else
echo “Package ‘pv’ is NOT installed.”
echo “Installing package ‘pv’. Please wait…”
apt-get -y install pv
fi
# Check if backup directory exists
if [ ! -d “$DIR” ];
then
echo “Backup directory $DIR doesn’t exist, creating it now!”
mkdir $DIR
fi
# Create a filename with datestamp for our current backup (without .img suffix)
OFILE=”$DIR/backup_$(date +%Y%m%d_%H%M%S)”
# Create final filename, with suffix
OFILEFINAL=$OFILE.img
# First sync disks
sync; sync
# Shut down some services before starting backup process
echo “Stopping some services before backup.”
service apache2 stop
service mysql stop
service cron stop
# Begin the backup process, should take about 1 hour from 8Gb SD card to HDD
echo “Backing up SD card to USB HDD.”
echo “This will take some time depending on your SD card size and read performance. Please wait…”
SDSIZE=blockdev --getsize64 /dev/mmcblk0;
pv -tpreb /dev/mmcblk0 -s $SDSIZE | dd of=$OFILE bs=1M conv=sync,noerror iflag=fullblock
# Wait for DD to finish and catch result
RESULT=$?
# Start services again that where shutdown before backup process
echo “Start the stopped services again.”
service apache2 start
service mysql start
service cron start
# If command has completed successfully, delete previous backups and exit
if [ $RESULT = 0 ];
then
echo “Successful backup, previous backup files will be deleted.”
rm -f $DIR/backup_*.tar.gz
mv $OFILE $OFILEFINAL
echo “Backup is being tarred. Please wait…”
#tar zcf $OFILEFINAL.tar.gz $OFILEFINAL
# rm -rf $OFILEFINAL
echo “RaspberryPI backup process completed! FILE: $OFILEFINAL”
exit 0
# Else remove attempted backup file
else
echo “Backup failed! Previous backup files untouched.”
echo “Please check there is sufficient space on the HDD.”
rm -f $OFILE
echo “RaspberryPI backup process failed!”
exit 1
fi

Learn More / Full Story >>

Incredibly Simple Beginners Guide To Landing Boeing 737

Friday, 13 April 2018

Might not be something everyone would need to do, but pilot Tim Morgan, has created an incredibly simple beginners guide to landing Boeing 737 plane in the event of an emergency.

Learn More / Full Story >>

Docker – Where to find Docker images ready to use ?

Wednesday, 11 April 2018

Docker Hub isn’t the only public image registry. Docker Store is the commercial alternative, which allows publishers to charge for licensed images.

Learn More / Full Story >>

DoodleBorg the 3 Horsepower Raspberry Pi Robot

Saturday, 7 April 2018

DoodleBorg is a 6 wheel rover robot we built to show the power capability of the PiBorg motor controller.

Learn More / Full Story >>