Raspberry Pi
LAMP stack
Linux - Apache - MySQL - PHP
Note: Mediawiki requires xml and mbstring packages
sudo apt-get install apache2 mysql-server php php-mysql php-xml php-mbstring
SSH Remote control
You can use remote shell to control your Raspberry Pi without directly connected mouse, keyboard and screen.
ssh pi@192.168.1.2
Ssh copy local file to remote machine
scp /path/to/local/file.zip pi@192.168.1.2:/home/pi/Downloads/file.zip
And back:
scp pi@192.168.1.2:/home/pi/Downloads/file.zip /path/to/local/file.zip
Nautilus ssh access, in the addressbar type:
ssh://pi@192.168.1.2
Ssh root access is not allowed by default but could be convenient for use with Nautilus Note: better set this back to 'no' when you are done
sudo nano /etc/ssh/sshd_config
PermitRootLogin yes
You can now access the machine as root with Nautilus, in the addressbar type:
ssh://root@192.168.1.2/
Allow ssh scripting without a password request, based on keys
You want the script to execute without it stopping to ask for a password.
Root session:
sudo -i
Generate keys, accept defaults:
ssh-keygen -t rsa
Create dir on remote:
ssh pi@192.168.1.2 mkdir -p .ssh
Add pub key to pi@192.168.1.2 authorized_keys:
cat .ssh/id_rsa.pub | ssh pi@192.168.1.2 'cat >> .ssh/authorized_keys'
Should work now without password:
ssh pi@192.168.1.2
Maybe needed, for some versions of ssh
cat .ssh/id_rsa.pub | ssh pi@192.168.1.2 'cat >> .ssh/authorized_keys2' ssh pi@192.168.1.2 chmod 700 .ssh ssh pi@192.168.1.2 chmod 640 .ssh/authorized_keys2
Require pi to enter password when sudo
By default the Raspbian pi user can sudo without the need to re-enter the password. If you don't like that make this change.
ssh pi@192.168.1.2 sudo nano /etc/sudoers.d/010_pi-nopasswd
Change it from:
pi ALL=(ALL) NOPASSWD: ALL
to
pi ALL=(ALL) ALL
VNC
For mouse and screen people.
Database MySql /MariaDB remote access
See MySQL remote
Performance tuning
Memory
Raspberry Pi lowered GPU memory from 64 to 32 MB
CPU, Diskspace
Slim down Raspberry Pi default installation by removing some packages
Remove packages with:
apt-get -y remove --purge <package1> <package2>
Education related packages:
idle idle3 python3-pygame python-pygame python-tk python3-tk python-serial python3-serial python-picamera python3-picamera python3-pygame python-pygame python-tk python3-tk python3-numpy python3-pifacecommon python3-pifacedigitalio python3-pifacedigital-scratch-handler python-debian-reference-en python-pifacedigitalio dillo x2x scratch nuscratch timidity smartsim pistore sonic-pi pifacecommon oracle-java8-jdk minecraft-pi python-minecraftpi penguinspuzzle wolfram-engine
Remove other packages:
sudo apt-get remove --purge libreoffice* sudo apt-get remove --purge chromium-browser #replacment browser sudo apt-get install midori
Remove unreferenced packages:
apt-get -y autoremove
Remove all packages marked 'rc':
dpkg --list |grep "^rc" | cut -d " " -f 3 | xargs dpkg --purge
See also
Board
