Issue Printer

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Write Orange Pi Image to microSD Card.

# download latest armbian image archive
wget -O image.7z
# extract image from archive
7z e image.7z
# put image on SD card
sudo dd if=Armbian_5.38_Orangepizero_Debian_stretch_next_4.14.14.img of=/dev/mmcblk0 status=progress
# flush block device buffer to ensure that SD card is written

Plug the SD card into the Orange Pi, connect it to the network vie ethernet and power it up. Search for Orange Pi in network.

nmap -p 22 | grep open -B 4 | grep -Po '\d+\.\d+\.\d+\.\d+' | tee /tmp/wo
# power the Orange Pi on and wait a minute
sleep 60s
nmap -p 22 | grep open -B 4 | grep -Po '\d+\.\d+\.\d+\.\d+' | tee /tmp/w
diff /tmp/w /tmp/wo

SSH onto the machine with username root and password 1234. Play through the dialog and create a new user with username user and password user. All other options are irrelevant.

# underlock to prevent overheating
sed -i -e 's/MAX_SPEED/#MAX_SPEED/' /etc/default/cpufrequtils
sed -i -e 's/GOVERNOR/#GOVERNOR/' /etc/default/cpufrequtils
echo -e '#GOVERNOR=powersave\nGOVERNOR=conservative\nMAX_SPEED=816000' | sudo tee -a /etc/default/cpufrequtils
/etc/init.d/cpufrequtils restart
# maximize partition size
echo ", +" | sfdisk -N 1 /dev/mmcblk0 --force
resize2fs /dev/mmcblk0p1
# set root password to root
usermod root --password root
# add user to sudo group
usermod user --append --groups sudo
usermod user --append --groups lp
usermod user --append --groups lpadmin
# switch to user and upgrade
su user
sudo apt update
sudo apt upgrade
# set up wireless network
sudo systemctl stop wpa_supplicant
sudo systemctl disable wpa_supplicant
sudo systemctl disable NetworkManager
sudo systemctl disable NetworkManager-wait-online
sudo systemctl disable networking.service
echo ctrl_interface=/run/wpa_supplicant | sudo tee /etc/wpa_supplicant/wpa_supplicant-wlan0.conf
wpa_passphrase $SSID $PSK | sudo tee -a /etc/wpa_supplicant/wpa_supplicant-wlan0.conf
echo -e '[Match]\nName=wlan0\n\n[Network]\nAddress=\nGateway=\nDNS=\n' | sudo tee /etc/systemd/network/
sudo systemctl start wpa_supplicant@wlan0
sudo systemctl enable wpa_supplicant@wlan0
sudo systemctl start systemd-networkd
sudo systemctl enable systemd-networkd
sudo systemctl start systemd-resolved
sudo systemctl enable systemd-resolved
# reboot tut gut (german proverb)
sudo reboot

SSH onto the machine with user : user.

sudo apt install cups-pdf libcups2-dev pdftk python-pip python-setuptools python-wheel
pip install pypdftk
sudo cupsctl --remote-admin
git clone
cd zj-58
sudo ./install
git clone
sudo cp issue-printer/issue-printer.service /etc/systemd/system/
sudo systemctl start issue-printer.service
sudo systemctl enable issue-printer.service
sudo iptables -t nat -A PREROUTING -p tcp --dport 80 -j REDIRECT --to-port 8000
sudo iptables-save | sudo tee /etc/iptables/rules.v4