Find ip-adres in router and log in via ssh (user: pi, password: raspberry)
Add user and make sure it has the same UID as your other machines (for convenience):
in "/etc/passwd" you cab find the UID of users
Add user:
adduser user_name
Change UID with command:
usermod -u 1001 user_name
Add new user to all the groups 'pi' is also in:
File "/etc/group"
Change all entries. For example: adm:x:4:pi becomes adm_x:username,pi")
Add new user to sudo:
usermod -aG sudo user_name
REBOOT SYSTEEM!
Login as new user and test (don't forget to test sudo!
Remove pi-user:
sudo deluser -remove-home pi
sudo rm -vf /etc/sudoers.d/010_pi-nopasswd
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SSH loggin without password:
On local-machine (if not already done, check with "ls ~/.ssh/id_*"):
ssh-keygen -t rsa -b 4096
Copy the keu:
ssh-copy-id remote_username@server_ip_address
Log in on remote, now without passworrd
Disable login with password on remote: (optional; don't loose the key!)
open file "/etc/ssh/sshd_config"
Change:
PasswordAuthentication no
ChallengeResponseAuthentication no
UsePAM no
Restart ssh deamon:
sudo /etc/init.d/ssh reload
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Change login schreen by editing the text file "/etc/motd".
Change the "sshd_config" to (if you now get two motd's, change it back to no)
PrintMotd yes
----
Change hostname:
sudo nano /etc/hostname
sudo nano /etc/hosts
---
LOCALE settings
sudo raspi-config
Than Localisation options / change locale (en_US.UTF-8 UTF-8)
and also time-zone
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Update system:
sudo apt-get update
sudo apt-get upgrade
---
Apache webserver and php
sudo apt-get install apache2 php
sudo chown www-data:www-data /var/www/html/
sudo usermod -aG www-data marcel
sudo chmod g+w /var/www/html/
install index.html in /var/www/html
---
Add firewall:
sudo apt install ufw
sudo ufw allow ssh
sudo ufw allow http
sudo ufw allow https
sudo ufw enable
sudo ufw status
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Enable I2C RTC
sudo rapi-config
enable i2c
sudo reboot
sudo apt-get install i2c-tools
sudo i2cdetect -y 1
#68 is RTC
sudo nano /boot/config.txt
dtoverlay=i2c-rtc,ds1307
sudo reboot
sudo i2cdetect -y 1
You should see a wall of text appear, if UU appears instead of 68 then we have successfully loaded in the Kernel driver for our RTC circuit.
Disable fake hardware clock:
sudo apt-get -y remove fake-hwclock
sudo update-rc.d -f fake-hwclock remove
sudo systemctl disable fake-hwclock
sudo nano /lib/udev/hwclock-set
Find
if [ -e /run/systemd/system ] ; then
exit 0
fi
Replace With
#if [ -e /run/systemd/system ] ; then
# exit 0
#fi
Also comment out the two lines
/sbin/hwclock --rtc=$dev --systz --badyear
and
/sbin/hwclock --rtc=$dev --systz
Read RTC:
sudo hwclock -r
Set RTC from system time:
sudo hwclock -w
----
Direwolf:
sudo apt-get install git
sudo apt-get install cmake
sudo apt-get install libasound2-dev
sudo apt-get install libudev-dev
cd ~
cd direwolf
mkdir build && cd build
cmake -DUNITTEST=1 ..
make -j4
make test
sudo make install
make install-conf
edit direwolf.conf:
ADEVICE plughw:1,0
CHANNEL 0
MYCALL MYCALL-0
MODEM 1200
PTT GPIO 18
DCD GPIO 17
TXDELAY 40
TXTAIL 5
AGWPORT 8000
KISSPORT 8001
<REST: leave at default>
Add user to gpio-group:
sudo usermod -aG gpio marcel
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AX25 support
sudo apt-get install libax25 ax25-apps ax25-tools
sudo nano /etc/ax25/axports
add:
ax0 PE1RXF-0 1200 255 2 144.800 MHz (1200 bps)
ax1 PE1RXF-1 9600 255 2 External radio
---
APRX software
sudo apt-get install aprx
sudo systemctl enable aprx
----
gnuplot:
sudo apt install gnuplot
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kissattach and kissutil can only be executed as root. But we don't want to enter a password when starting the pe1rxf-scripts as the aprs-server has to work autonomous. We also don't want to run all the scripts as root, because that's a safety risk. The solution is to add the following lines to the sudoers-file:
sudo visudo
marcel ALL = (root) NOPASSWD: /usr/sbin/kissattach