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Here you can find info about Raspberry PI, ODROID, Linux and any other ideas.

Keeping a process running after SSH has been closed


It is a question that has been asked by a guy in a Slack channel and piqued my curiosity. Thanks to DuckDuckGo the answer came alone:

# Instead of running a process as,
$ proc &
# Try to use:
$ nohup proc &

The nohup will prevent the process from being terminated when the terminal disconect. Another solution is using the screen command. You have some examples at thegeekstuff.com.

News this week in the Pi World


This week has passed away Knightscope K5, a police robot that patrolled a mall in the city of Washington. He ended his miserable life by throwing himself into a fountain and now investigates what might have happened. From here I want to honor the memory of this robot who had no opportunities in his life to prove his bravery. A drunkard beat him up earlier and maybe could not overcome that humiliation.

If you have a board in a forgotten drawer please take it out sometime. Give it a ride, give it a beer, greet it once in a while...

Well, let's review what happened this week in the Pi World and I'm going to put a little color to everything around us...

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Configure closest mirror with netselect-apt in Debian


The default installation is configured to download the packages from a remote server that is sometimes saturated. The best thing is to call the closest mirror and that can be done with the netselect-apt package, which can be installed as usual:

sudo apt install -y netselect-apt

Now we invoke it with sudo netselect-apt version, where version is the version we currently have (jessie, stretch).

Notice that this solution does not support Raspbian, as it has its own mirrors and this application will not update your /etc/apt/sources.list. Although you can introduce it by hand. For Spain we could write:

# Comment the current mirror
sudo sed -i '/deb http:\/\/m/s/^/#/' /etc/apt/sources.list
# Add the Spain mirror to /etc/apt/sources.list
sudo sh -c 'echo "deb http://ftp.cica.es/mirrors/Linux/raspbian/raspbian/ jessie main contrib non-free rpi" >> /etc/apt/sources.list'

I leave you the link with all the mirrors below.

Link: raspbian.org/RaspbianMirrors

BENJA based on Electron for Raspberry Pi and ODROID


BENJA stands for Bootable Electron Node Js Application. It is an operating system mounted over Arch Linux with software prepared to be used in Kiosk mode. It has pre-installed Node.js, rasp-io for access to in/out ports, in addition to johnny-five, which is no longer That a framework based on Javascript used for robotics and IoT.

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News this week in the Pi World


Fate has wanted me to cross in my way geographic information systems again, to which I have dedicated much of my professional career. Today is the day that I have published an article on this subject in the issue this month on ODROID Magazine with which you can enjoy this and other topics of interest. In the meantime you download it comfortably, we'll be reviewing the best of the weekly panorama in this crazy Pi World. Here we go!

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Hide the Apache web server signature


When Apache can't find a url or the user does not have permissions to see a certain page (403), add a signature at the bottom of the page with information about the installed version as you can see in the image that heads the article.

To hide it, edit the file /etc/apache2/apache2.conf, execute the following and restart the daemon:

sudo sh -c 'echo "ServerSignature Off\nServerTokens Prod" >> /etc/apache2/apache2.conf'
sudo systemctl restart apache2
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