Linux - Tag - Dimas Maulana

Android Mirroring with Scrcpy

Mon, 28 Apr 2025 17:46:35 +0700

Scrcpy is a free and open-source tool that allows you to mirror your Android device’s screen to your computer. It provides high-performance, low-latency screen mirroring and works over USB and Wi-Fi connections. This guide explains how to set up and use Scrcpy efficiently.

Prerequisites

Android device with USB debugging enabled
Computer (Windows, macOS, or Linux)
Scrcpy installed on the computer

Step-by-Step Guide

1. Install Scrcpy on Your Computer

Windows: Download and run scrcpy.exe from the GitHub release page.

Unlocking Luks Encrypted Disk via SSH on Ubuntu Server

Fri, 08 Nov 2024 11:29:59 +0700

This article provides a step-by-step procedure for unlocking and accessing a Luks encrypted disk using SSH on an Ubuntu server.

Install Dropbear

To enable SSH access on your Ubuntu server, you’ll need to install Dropbear. Run the following commands:

Rsync to Windows Open SSH

Wed, 06 Nov 2024 16:40:20 +0700

Attempting to perform an rsync operation from a Linux or macOS system to a Windows machine directly using the rsync command will fail. This is because Windows does not have a built-in rsync utility.

A typical command like rsync /source/ target-hostname:/mnt/e/target/ will result in an error.

Solution

Leverage the power of the Windows Subsystem for Linux (WSL) to enable rsync functionality on your Windows system.

Prioritizing Data Privacy for Secure Transmission with Port Forwarding

Wed, 13 Sep 2023 10:30:34 +0700

Introduction

In the world of secure data transmission, prioritizing data privacy is paramount. Two common approaches, Apache reverse proxy and port forwarding with autossh, offer different solutions for transmitting data securely. In this article, we’ll explore the benefits of port forwarding with a primary focus on data privacy. We’ll also discuss how this approach can enhance the security of your sensitive information and compare it with the potential data privacy risks associated with Apache reverse proxy.

Switching Monitor and Keyboard Lids on MacBook with Ubuntu Text-Based UI

Thu, 22 Jun 2023 16:16:38 +0700

If you’re using Ubuntu on a MacBook and prefer a text-based user interface, you may want to control the state of the monitor and keyboard lids. We will provide commands to switch the monitor and keyboard lids on and off, allowing you to customize your MacBook experience.

Switching Monitor Lid

To turn the monitor lid off and disable the backlight, use the following command:

Lock Xubuntu Remotely From SSH

Fri, 05 May 2023 11:01:00 +0700

In certain situations, such as when administering a remote server running Xubuntu, it can be useful to be able to lock the screen remotely. This can help ensure the security and privacy of the system, especially when multiple users have access to the server. In this blog post, we will walk you through the process of remotely locking the Xubuntu screen from SSH.

Prerequisites

To follow this guide, you’ll need the following:

Fixing Camera Issues After Kernel Update on MacBook with Ubuntu OS

Thu, 20 Apr 2023 05:52:46 +0700

If you’re using Ubuntu as your operating system on a MacBook and have recently updated the kernel, you might encounter issues with your camera not working. This problem can be resolved by reinstalling the necessary drivers. We will guide you through the steps to fix the camera problem and get it up and running again.

Step 1: Open Terminal

To begin, open the Terminal on your MacBook. You can do this by searching for “Terminal” in the Applications menu or by using the shortcut Ctrl+Alt+T.

Fixing Puppeteer libgbm.so.1 Error on Ubuntu

Mon, 12 Apr 2021 19:28:33 +0700

When trying to run Puppeteer on Ubuntu, you may encounter the following error:

error while loading shared libraries: libgbm.so.1: cannot open shared object file: No such file or directory

This error occurs because the required library libgbm.so.1 is missing on your system. To resolve this issue, you need to install the libgbm development package. Here’s a step-by-step guide on how to fix it:

Step 1: Update Package Lists

Before installing any packages, it’s always a good practice to update the package lists to ensure you are installing the latest versions available.

Bash Scroll Won't Work

Thu, 27 Aug 2020 07:36:37 +0700

If you’re encountering difficulties scrolling through content in your Bash terminal while using the more or less commands, there are several troubleshooting steps you can take to address the issue. These commands are designed to display the contents of files or command outputs one screen at a time. If scrolling isn’t functioning as expected, consider the following solutions:

1. Utilize Keyboard Shortcuts

When using the more or less commands, you can employ the following keyboard shortcuts to navigate through the displayed content:

Managing Essential Packages in Ubuntu with debfoster

Wed, 12 Feb 2020 11:43:19 +0700

When using Ubuntu, it’s important to keep your system clean and organized by removing orphaned packages and unwanted dependencies. One useful tool for managing packages in Ubuntu is debfoster. In this article, we’ll explore how to use debfoster to keep only essential packages, remove unwanted dependencies, and maintain a tidy Ubuntu installation.

Installation

By default, debfoster may not be installed on your Ubuntu system. To install it, open a terminal and run the following command:

Installing Appium with Root User on Ubuntu - Permission Error

Mon, 10 Feb 2020 13:02:57 +0700

When installing Appium on Ubuntu using the root user, you may encounter a permission error. However, this issue can be resolved by following a few steps. This article will guide you through the process of installing Appium successfully on Ubuntu using the root user.

Prerequisites

Before proceeding with the installation, make sure you have the following prerequisites:

Docker Port Still Open Despite UFW Blocking

Sun, 25 Aug 2019 20:17:30 +0700

In some cases, users have reported issues where Docker containers continue to have open ports even after configuring the Uncomplicated Firewall (UFW) to block them. This can be a frustrating experience, but there are a few potential solutions to investigate.

1. Using 127.0.0.1 as the Host IP

One possible cause for this issue is the configuration of the Docker container’s network settings. By default, Docker containers run in their own isolated network environment, separate from the host machine. When specifying a port in the format 127.0.0.1:12100 in your Docker Compose .env file, you are binding the container port to the loopback interface on the container itself, rather than the host machine. Consequently, UFW might not have any control over this loopback interface.

How to Return Forbidden if Apache HTTPS is Accessed Directly Using IP

Mon, 19 Aug 2019 19:04:39 +0700

Here’s an example of how you can configure your Apache web server to return a “403 Forbidden” error if the HTTPS is accessed directly using the IP address. This configuration assumes that you have the mod_ssl module installed and enabled in your Apache server.

Step 1: Create or Edit the Apache Configuration File

Open the Apache configuration file in a text editor. The location of the configuration file may vary depending on your operating system and Apache installation. Common locations include:

UFW Not Starting on Boot in Ubuntu 18.04

Sun, 18 Aug 2019 13:19:42 +0700

If you’re experiencing issues with the Uncomplicated Firewall (UFW) not starting on boot in Ubuntu 18.04, there are a few steps you can take to troubleshoot and resolve the problem. Here’s a step-by-step guide to fix the issue.

Please note: Modifying system files requires administrative privileges. Make sure you have the necessary permissions before proceeding.

Editing the UFW Service File

Open a terminal or SSH session and log in to your Ubuntu 18.04 system.
Use the following command to open the UFW service file in the Vim text editor:

sudo vim /lib/systemd/system/ufw.service

Inside the Vim editor, locate the line that reads Before=network.target. You need to remove this line from the file. To do so, move the cursor to that line, press dd to delete the line, and then save the file and exit Vim by typing :wq.

Troubleshooting a Hanging Cron Job in Ubuntu's APT Script

Sun, 03 May 2015 07:09:52 +0700

Cron jobs are an essential part of automating tasks on a Unix-like operating system. However, occasionally, you may encounter issues where a cron job hangs or fails to run as expected. In this blog post, we’ll address a specific scenario where a cron job hangs in the APT script on Ubuntu and provide a solution to resolve it.

Step 1: Locate the APT Cron Job Script

The APT script is responsible for automatically updating the package lists and installing updates on Ubuntu systems. To begin troubleshooting, open a terminal and run the following command to locate the script: