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Category: Raspberry Pi (page 1 of 2)

Raspberry Pi VPN server.

Security, security,,,, privacy, privacy, ipv6 leaks, big brother yada yada yada … Lets build VPN.

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Raspberry Pi LAMP server v2 with Nginx and MariaDB

So why Nginx and MariaDB ?

Nginx will replace our Apache server. But why ? Short answer is performance. Bit longer answer is that Nginx is Asynchronous server which means it can perform several actions at the same time, without waiting previous to end. Nginx responds faster and consumes less RAM then Apache and this is my main reason for switching to Nginx. There are of course differences. Nginx doesn’t support .htaccess files and sometimes the are differences how Nginx handles PHP.
And MariaDB is drop in replacement to MySQL. MySQL was brought by oracle some time ago and since then the MySQL has problems with including community in development process and distrust from community for having competing products, open source MySQL and proprietary OracleDB. So the original developer of MySQL created a new projects MariaDB and it is fully open source, has strong community and is being actively developed.

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Syncthing on Raspberry Pi 2 make your own cloud storage

Syncthing is amazing alternative to things like Dropbox or Google Drive plus you control your data. Now it works little differently than usual cloud storage solutions. Instead of one central server Syncthing uses peer to peer sharing. Also Syncthing is quite flexible for sharing files between your different devices or between people. I will not go into details of Syncthing  features and options because probably if you are already here you want to know how to install it so here goes …
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Running Raspberry Pi 2 from USB drive

Until now I have used Raspberry Pi with micro SD card and while it works for some times I have had lot of corruptions. Not shutting Pi properly down plus unstable power wreak havoc on the SD card. And as you may have read from my previous tutorials I like to run servers on my Raspberry Pi so yeah SQL + logging = high read write are no way to treat small SD cards.

So for loads like that there should be more robust solution.

And for that here is small write up how to use USB thumb drive or USB hard drive as your Raspberry Pi-s root drive. You still need SD card for boot but as you learn from this tutorial it is much easier to replace the static boot drive then whole system, especially  if you haven’t backed up your system 10 seconds prior to failure.

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Node Red Dashboard server and temperature monitor.

Here are some screenshots of the upgraded dashboard. And at the bottom is the full Node Red code.

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Wifi temperature logger aka “NodeMcu Arduino IDE MQTT DHT11 Node”. Part 3 (Node Red and dashboard)

In previous two tutorials we learned how to set up ESP8266 with arduino IDE as temperature sensing node. Now we gonna look Node Red side of things and will create dashboard for displaying the data.

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Wifi temperature logger aka “NodeMcu Arduino IDE MQTT DHT11 Node”. Part 2 (ESP8266 sketch)

In this part of the tutorial we will look closer the esp8266 sketch that will send the temperature info to our server.


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Recovering broken Raspberry Pi filesystem

Well F.. Nothing works. Hmm lets reboot. Nothing. Maybe its issue with external hard drive. Lets take the RPi Sd card and change the fstab file manually from different computer. While trying to open the /etc/ folder I’m greeted with following error:

Boom. Congrats you won broken filesystem. “Structure needs cleaning”.

So here is how you can maybe fix it.

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Raspberri Pi Torrent box

Finally we can set up our torrent box. For you know.. downloading and sharing Linux distros and open sourced software.

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Setting up SSHFS on Raspberry Pi

This will be tutorial about how to set up RPi torrent box… oh wait i need to mount external drive ….okey then…. This WILL be tutorial about how to mount usb drive on RPi …. Wait I need to transfer large files between RPi and my PC …….fuuuuuuuu…  Fine  it will be tutorial about how to set up SSHFS on Raspberry Pi.
I prefer SSHFS over samba because its pain to set up samba on RPi(not really but i’m lazy) and yes if you want connect many windows or android devices its better solution but for a linux to linux file transfer it super easy and quick to set up, another downside is speed. But because I don’t transfer 100 gig files my 10MB/s is adequate.But hey the SSHFS is encrypted which is nice.

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