Dimas Maulana

The provided command is almost correct for sending an email using the sendEmail utility in the terminal on Ubuntu 18.04. However, there are a couple of issues with the formatting. Here’s the corrected version of the command in markdown format as you requested:

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# Send Email using Terminal Bash on Ubuntu 18.04

First, install the necessary packages:

```bash
sudo apt install sendEmail libio-socket-ssl-perl libnet-ssleay-perl

Then, you can use the sendEmail command to send an email as follows:

In this tutorial, we’ll walk you through the process of muting a video using FFmpeg, a powerful command-line tool for video and audio processing. There are several ways to mute a video with FFmpeg, depending on your specific needs. We’ll cover muting a single video file and muting multiple video files in a folder while preserving metadata, including GPS information.

Mute a Single Video File

To mute a single video file, you can use the following FFmpeg command:

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:

Tmux is a versatile terminal multiplexer that allows you to manage multiple terminal sessions within a single window. Additionally, you can customize Tmux behavior to suit your preferences and automate tasks. This article presents a collection of Bash scripts designed to customize Tmux behavior and display an SSH banner when starting Tmux. Let’s explore each script’s purpose and functionality.

Script 1: Show SSH Banner on Start Tmux

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if [[ -z "$TMUX" ]]; then
    tmux has-session &> /dev/null
    if [ $? -eq 1 ]; then
        shopt -q login_shell && exec tmux new
        exit
    else
        shopt -q login_shell && exec tmux attach
        exit
    fi
else
    TMUX_WINDOW=$(tmux display-message -p '#{session_windows}')
    if [ $TMUX_WINDOW == "1" ]; then
        shopt -q login_shell && run-parts /etc/update-motd.d/
    fi
fi

This script is designed to display an SSH banner when starting Tmux. It checks whether the TMUX environment variable is empty, which indicates that Tmux is not currently running. If Tmux is not running and the current shell is a login shell, it starts a new Tmux session. If Tmux is already running, it attaches to the existing session. If there’s only one window in the Tmux session, the script runs the /etc/update-motd.d/ script to show a message of the day for SSH sessions.

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

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

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

3. 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.

In Windows, you can filter events in the event logs based on specific criteria, such as the user account associated with an event. This can be particularly useful for security and auditing purposes. Below are examples of XML queries that filter Windows events by user account using XPath expressions.

Example 1: Filter Successful Logon Events (Event ID 4624) by User Account

This example demonstrates how to filter successful logon events (Event ID 4624) in the Security event log for a specific user account, in this case, “john.doe.”