How to Install Apache Nifi in Ubuntu Linux
Apache NIFI is an open-source scalable tool to manage transformation, data routing, and system mediation logic. To put it in layman’s terms nifi simply automates the flow of data between two or more systems. It is cross-platform and written in Java t
Jul 16, 2025 am 09:26 AM
Scout_Realtime - Monitor Server and Process Metrics in Linux
Previously, we’ve explored numerous command-line tools for Linux performance monitoring, including top, htop, atop, glances, and others, as well as web-based solutions like cockpit, pydash, and linux-dash. Additionally, glances can be used in web ser
Jul 16, 2025 am 09:25 AM
Gdu – A Pretty Fast Disk Usage Analyzer for Linux
In this article, we will explore gdu, an open-source disk usage analyzer developed in Go. The tool draws inspiration from projects like godu, dua, ncdu, and df.The gdu utility is specifically optimized for use with SSD drives, where it leverages para
Jul 16, 2025 am 09:23 AM
Digitally Sign Documents in Linux Using ONLYOFFICE Desktop Editors
One of the most reliable ways to protect your documents and their content from any alterations is using a digital signature. It is a mathematical technique used to validate the authenticity and integrity of a document. In other words, a digital signa
Jul 16, 2025 am 09:22 AM
LFCA: How to Monitor Basic System Metrics in Linux – Part 8
This article is Part 8 of the LFCA series, here in this part, you will acquaint yourself with the general system administration commands to monitor basic system metricks and schedule administrative tasks in the Linux system. Keeping tabs on the perfo
Jul 16, 2025 am 09:17 AM
8 Command Line Tools for Browsing Websites and Downloading Files in Linux
In the last article, we have covered few useful tools like ‘rTorrent‘, ‘wget‘, ‘cURL‘, ‘w3m‘, and ‘Elinks‘. We got lots of responses to cover few other tools of the same genre, if you’ve m
Jul 16, 2025 am 09:15 AM
How to Use Nmap Script Engine (NSE) Scripts in Linux
Nmap is a popular, powerful and cross-platform command-line network security scanner and exploration tool. It can also help you get an overview of systems that connected your network; you can use it to find out all IP addresses of live hosts, scan op
Jul 16, 2025 am 09:14 AM
LFCA: Basic Security Tips to Protect Linux System – Part 17
We are currently in an era where businesses face relentless threats from security breaches, driven by the pursuit of valuable and sensitive data that can yield significant financial gain.It's quite alarming that even with the high risk of cyberattack
Jul 16, 2025 am 09:13 AM
LFCA: How to Manage Software Packages in Linux – Part 7
This article is Part 7 of the LFCA series, here in this part, you will acquaint yourself with the general system administration commands to manage software packages in the Linux system. As a systems administrator, you will be tasked with the responsi
Jul 16, 2025 am 09:10 AM
Mosh Shell - A SSH Based Client for Connecting Remote Unix/Linux Systems
Mosh, short for Mobile Shell, is a terminal application designed to connect to a server remotely over the internet. It can function similarly to SSH but comes with enhanced capabilities compared to the traditional Secure Shell.Developed initially by
Jul 16, 2025 am 09:08 AM
What is the role of kubectl?
kubectl is the main command line tool for interacting with Kubernetes clusters. Its core functions include managing applications and resources, interacting with cluster components, and configuring access contexts. Specifically: 1. It can be used to create, update, delete and check various objects in the cluster, such as deploying applications, checking Pod status, and deleting services; 2. Support monitoring and debugging operations, such as viewing logs, executing commands in containers; 3. You can view node status, describe specific resources, and forward local access services through ports; 4. Provide configuration management functions, support viewing, listing and switching different cluster contexts to ensure operation in the correct environment. In short, kubectl is an indispensable tool for Kubernetes daily operations, providing
Jul 16, 2025 am 03:16 AM
What is a Linux distribution (distro)?
The Linux distribution (distro) is a complete version of the operating system that includes the Linux kernel and various tools, libraries and applications. 1. Its core includes the Linux kernel, 2. Package manager (such as apt, yum), 3. Default desktop environment (such as GNOME, KDE), 4. Pre-installed software and configuration tools. Different distributions are designed for different needs: 1. Novice-friendly models such as Ubuntu and LinuxMint; 2. Stable enterprise models such as Debian and CentOS; 3. Frontier models such as ArchLinux and Fedora; 4. Special models such as KaliLinux and Tails. On update and support mode, 1. Rolling updates (such as Arch) provide the latest features but
Jul 16, 2025 am 02:45 AM
What is a shebang (#!/bin/bash) and why is it important?
Ashebang(e.g.,#!/bin/bash)specifiestheinterpreterforascript,ensuringitrunscorrectly.1.Itstartswith#!followedbytheinterpreterpath.2.Itdetermineswhichshellorlanguagerunsthescript,likeBashorPython.3.Itenablesdirectexecutionvia./script.shafterchmod x.4.M
Jul 16, 2025 am 02:45 AM
What is sudo in Linux?
SudoinLinuxallowsuserstoruncommandswithelevatedprivileges,typicallyastherootuser.Itenhancessecuritybyrequiringapassword,improvesaccountabilitythroughlogging,andoffersflexibilityviagranularpermissions.Whenacommandisrunwithsudo,thesystemchecksthe/etc/s
Jul 16, 2025 am 02:31 AM
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