Raspberry

First off, as a prerequisite it is needed to have a CLI access to the Debian OS. It can be done using a keyboard and a screen connected to the Raspberry Pi, or using a SSH connection. If you have followed the post of how to install Debian On a Raspberry Pi 4, you should be able to access with SSH using the Ethernet (RJ45) port. Also, you should have the SSID and the password of your Wi-Fi connection, and it should be enabled the DHCP protocol in your router. ...

I have several Raspberry Pi and in all of them I have used the Ubuntu distro. However I also wanted to use Debian as it is one of the most used Linux distros. Besides Ubuntu is based on Debian, so I guess I will feel confortable with it. Debian vs Ubuntu Debian is more stable than Ubuntu, indeed, it is one of the most stable Linux. The releases in Debian are not as frequent as in Ubuntu, and the software updates in Debian usually don’t have the latest versions. Besides, Debian is lighter because the software it has is the basic one. ...

I have several NAS servers at home (one for Media, other for Backups…) so in order to extend shelf life, not all of them are on all the day. However, there are some situations in which I need to have access to a server, but it could be off and maybe i’m not at home. In that case, I have a way to turn on the Synology NAS remotely from another server. ...

There are several models of Raspberry Pi, with different types of CPU, RAM and hardware in general. In order to know which version do you have, there are different options. CPUinfo file Each Raspberry Pi model could have several revision codes. You can know your Raspberry Pi’s revision code using this command: cat /proc/cpuinfo The last lines show the Hardware type, the revision code, the Serial Number and in the newer ones, the Model. For Example: ...

First step is to check the status of the interfaces. For this, we will use the net-tools package. sudo apt install net-tools Then, we can see the interfaces status ifconfig -a In my case, I have this status of my interface wlan0: ubuntu@ubuntu:~$ ifconfig -a wlan0 wlan0: flags=4098<BROADCAST,MULTICAST> mtu 1500 ether dc:a6:32:6c:xx:xx txqueuelen 1000 (Ethernet) RX packets 0 bytes 0 (0.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 0 bytes 0 (0.0 B) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 ...

This blog have several items related to Raspberry. I decided to created this page to have all Raspberry Pi related posts, ordered. Info How to know which Raspberry do you have How to install Ubuntu in your Raspberry Pi 4 without Keyboard nor screen How to install Debian on a Raspberry Pi How to change the hostname in Ubuntu How to change language and timezone in Ubuntu Customization Customize the terminal with screenFetch How to add alias to your Linux Customize bash prompt with colours in Ubuntu Networking How to set up Wi-Fi on Ubuntu running on the Raspberry Pi 4 How to set up Wi-Fi on Debian running on the Raspberry Pi 4 How to resolve LAN hostnames with Ubuntu Monitoring How to Monitor an Ubuntu Server with Grafana and Prometheus How to monitor network traffic with vnStat Mail Configure Postfix to send e-mail using Sendinblue as SMTP server Security Protect your server with Fail2ban Integrate AbuseIPDB with Fail2ban Users How to create a new user in Ubuntu from terminal How to activate SUDO for a user in Ubuntu

To install Ubuntu in your Raspberry Pi 4 what you need is: Raspberry Pi 4 USB-C cable Mini SD Card (recommended 16 Gb or more) PC Mini SD Card reader in your PC RJ45 Ethernet cable Switch or Router of your network The first step is to install Ubuntu software in your SD Card. For this, you shoud go to the Raspberry Pi Downloads page, and download the Raspberry Pi Imager. ...