RetroPie, starting from the version 4.6, can be installed on Raspberry Pi 4. In this note i will show how to download the latest image of RetroPie and how to install it on Raspberry Pi 4 using Raspberry Pi’s Imager in Windows, MacOS and Linux. Additionally, i will show how to burn the RetroPie’s image […]
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Raspberry Pi: Enable SSH Headless (Without Monitor)
If you are going to use a Raspberry Pi headless (without a monitor), you should know that for security reasons the SSH server in Raspbian is disabled by default. In order to connect to the headless Raspberry Pi, you should enable SSH in advance and this can be done even before the first boot. In […]
Raspberry Pi: Default Password & How To Change
Most of the operating systems for Raspberry Pi have default password for accessing RPi using SSH or VNC. In Raspbian, for example, the default username is pi and the default password is raspbian, but this is not a standard for the most of the other distributions. Below you will find a table with default logins […]
Find Raspberry Pi’s IP on Network – Windows, MacOS, Linux
To connect to a Raspberry Pi using SSH or VNC, you need to know the Pi’s IP address. If you use the Raspberry Pi with a monitor, you can check the Pi’s IP from the command line (terminal) by executing the hostname -I command. Without a monitor and keyboard (headless) you can find the Raspberry […]
Journalctl: Tail Service Logs – Systemd Journal
Journalctl is a command line tool in Linux for querying and displaying logs from journald, systemd’s logging service. In this note i will show how to use journalctl to tail systemd service logs (display last 100 lines or follow) and how to show logs for particular time rages: today’s logs, previous boot logs or systemd […]
Format USB Drive in Linux – Command Line
Formatting USB drives in Linux from the command line (terminal) is very easy. In this note i will show how to format an external HDD, SSD or USB flash drive in Linux from the command line using mkfs utility. I will provide the examples of disk formatting to the most popular file system types: FAT32, […]
Raspberry Pi: Mount USB Drive – Automatically
You can connect the external HDD, SSD or USB flash dives to any of the USB ports on the Raspberry Pi and mount the file system to access the data stored on it. In this article i will show how to manually or automatically at boot time mount a storage device on the example of […]
PowerShell: Check If Port is Open – Test TCP Connection
During troubleshooting of different issues it is often required to check if some TCP port on a remote host is opened and ensure that it is not blocked by a firewall. The most common tool for this is telnet, but it may not be installed or you may want to be able to copy the […]
OpenVPN: Connect Client Setup – Install & Config – Linux
In this article i am showing how to install OpenVPN client on RPM/DEB-based Linux distributions and configure it to connect to OpenVPN server. Particularly i will show an example of OpenVPN client configuration file that i use to connect to OpenVPN server with certificates and username/password-based authentication, how to create a systemd service for OpenVPN […]
Check Real Actual Size – USB Flash Drive, SD Card
Once a USB flash drive or an SD card is purchased, it is a good idea to check if the announced capacity of a device is real or fake (as a system may show a wrong size). Linux and MacOS users can do this from the command line using the f3 – a set of […]