About

Setting up my raspberry pi

In my computer:

SD card

1. Format for FAT32 (I used disk utility on mac. Format to MS_DOS). Use more than 8gb, mediawiki can become heavy.

2. Flash ISO to SD card (Raspbian Buster Light, https://www.raspberrypi.org/downloads/raspbian/ ) with a mounter (I've used etcher https://www.balena.io/etcher/ )

With raspi connected to power, internet, screen and keyboard:

01 Default login

Login: pi

Password: raspberry

02 SSH config

   $ cd /boot

   $ sudo touch ssh

   $ sudo reboot

03 Check IP address

   $ hostname -i

Response: 192.0.0.0

04 My keyboard wasn't working properly.

I had to change language of keyboard to US instead of UK.

   $ sudo raspi-config

   Localisation Options

   Change Keyboard Layout

   Choose US

After using the keyboard I changed back to UK to avoid errors.

05 Change hostname

   $ ssh pi@192.0.0.0

   $ sudo raspi-config

   Choose item no. 2 on the menu: Network Options

   Rename hostname to: newhostname

   $ reboot

06 Add user

   $ sudo adduser name

07 Add new user to sudo

   $ sudo adduser name sudo

08 You should be able to login with:

   $ ssh name@newhostname

09 I had an error with known hosts. I removed cached key on my computer:

   $ ssh-keygen -R 192.000.0.000

10 Remove default pi user

   $ sudo deluser pi

10 Use key-based authentication:

10.1 Add .ssh keys to RPI

https://www.raspberrypi.org/documentation/remote-access/ssh/passwordless.md#copy-your-public-key-to-your-raspberry-pi

10.2 Edit file

   $ sudo nano /etc/ssh/sshd_config

   Uncomment PassowrdAuthentication and set it to no;

   Uncomment PermitRootLogin prohibit-passowrd;

10.3 Reload SSH

   $ sudo /etc/init.d/ssh restart

10.4 Reboot RPi

   $ sudo reboot

10.5 In my computer:

   $ cd ~/.ssh

   $ sudo nano config

Add to the document:

   Host newhostname
       User name
       Hostname 192.000.0.0
       Port 22
       Identityfile /Users/ritagraca/.ssh/id_rsa
       Serveraliveinterval 30

10.6 To ssh to my pi now:

   $ ssh newhostname

11. Set static ip address for LAN

   $ sudo nano /etc/dhcpcd.conf

Edit this part:

   #Static IP text block
       interface eth0
       static ip_address=192.000.0.00
       static routers=192.000.0.0
       static domain_name_servers=8.8.8.8 8.8.4.4

Note:

I shut down my pi, IP changed and couldn't ssh to it. If this happened already, connect pi again to screen, find new IP with $ config command, and put new IP in ~/.ssh, step 10.5.

Installing Mediawiki on my pi

1. Install Apache

   $ sudo apt update

   $ sudo apt install apache2 -y

2. Download Mediawiki

   $ mkdir Downloads

   $ cd Downloads

   $ wget https://releases.wikimedia.org/mediawiki/1.34/mediawiki-1.34.0.tar.gz (check the version)

   $ tar -xvzf mediawiki-1.34.0.tar.gz

3. Move

   $ sudo mkdir /var/lib/mediawiki

   $ sudo mv mediawiki-*/* /var/lib/mediawiki

4. Linking

   $ cd /var/www/html

   $ sudo ln -s /var/lib/mediawiki mediawiki

5. Updating

   $ sudo apt-get update

   $ sudo apt-get install apache2 mysql-server php php-mysql libapache2-mod-php php-xml php-mbstring

5.1 Error: Package 'mysql-server' has no installation candidate

Fix with:

   $ sudo apt install mariadb-server-10.3 php-mysql

5.2 Error: MySQL didn't ask for password so:

   $ sudo mysql_secure_installation

It will ask for password now.

6. Database

   $ sudo mysql -u root -p

Enter password. Type:

   mysql> CREATE DATABASE wiki;
   mysql> USE wiki;

   mysql> CREATE USER 'name'@'localhost' IDENTIFIED BY 'yourpassword';
   mysql> GRANT ALL PRIVILEGES ON wiki.* TO 'name'@'localhost'; 
   mysql> FLUSH PRIVILEGES;
   mysql> quit

7. Open browser

   http://ip_address_of_pi/mediawiki

On the website, it will ask for database connection settings:

   localhost
   database: wiki
   user: name
   password: yourpassword

Continue installation.

8. After setting up, it will ask to save LocalSettings.php. Download to your computer.

9. Move file from your computer to pi.

In your computer:

   $ scp LocalSettings.php name@hostname:/home/name/Downloads

10. Move from pi to the right place.

In your pi:

   $ sudo mv ~/Downloads/LocalSettings.php /var/lib/mediawiki/

some more help to setup mediawiki http://willbeone-techtips.co.za/2018/02/12/installing-mediawiki-raspberry-pi3/