Raspberry useful commands

Use nano (or any other text editor of your choice) to open the following file: Copy Code

  nano /etc/dhcpcd.conf 

Add the following lines to the bottom of the file. If such lines already exist and are not commented out, remove them.

Replace the comments in brackets in the box below with the correct information. Interface will be either wlan0 for Wi-Fi or eth0 for Ethernet.

 #interface [INTERFACE]
 #static_routers=[ROUTER IP]
 #static domain_name_servers=[DNS IP]
 #static ip_address=[STATIC IP ADDRESS YOU WANT]/24

Open Network Manager UI with:

sudo nmtui

• Choose “Edit connection”
• Pick the connection you want to set to static, and select “Edit…” on the right.
• Use the arrows on your keyboard to select the connection and the action button.

  #Set a password for root user:
  sudo passwd root

  #Allow root login
  sudo nano /etc/ssh/sshd_config
  #Authentication:  PermitRootLogin: yes
  #restart ssh service
  sudo service ssh restart

  #Gateway DNS
  route -n
  cat /etc/resolv.conf
   
  
  #Secure off
  sudo shutdown -h now
  
  #Memory
  free -m
  
  #disks
  lsblk -f
  
  #Version OS
  /cat/etc/osrelease
  lsb_release -a
  
  #Temperature
  vcgencmd measure_temp
  
  #switch to root
  sudo -su
  #install nmap
  apt install nmap
  #scan local network range to see who is up
  nmap -sP 192.168.0.1-254
  

GPIO RASPBERRY PI 3

GPIO RASPBERRY PI 4

Case cluster Pinout