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Liangxu Linux
Liangxu Linux
Sep 1, 2024 · Operations

Mastering LVM on Linux: Step‑by‑Step Guide to Create, Extend, and Snapshot Logical Volumes

This tutorial explains Linux Logical Volume Manager (LVM) fundamentals, walks through creating and removing physical volumes, building and deleting volume groups, provisioning logical volumes, formatting and mounting them, and performing size extensions, reductions, and snapshot operations with concrete command examples.

LVMLinuxSystem Administration
0 likes · 10 min read
Mastering LVM on Linux: Step‑by‑Step Guide to Create, Extend, and Snapshot Logical Volumes
Open Source Linux
Open Source Linux
Aug 30, 2024 · Operations

Master Linux Process Monitoring: ps, dstat, top & htop Explained

Learn how to use Linux process-monitoring tools—ps, dstat, top, and htop—by mapping each command to a character from the classic “Four Great Detectives,” while covering essential options, output fields, and practical tips for effective system observation.

LinuxSystem Administrationdstat
0 likes · 10 min read
Master Linux Process Monitoring: ps, dstat, top & htop Explained
MaGe Linux Operations
MaGe Linux Operations
Aug 17, 2024 · Fundamentals

How to Create ZFS Filesystems and Enable Compression on Linux

This guide walks through creating a ZFS filesystem from a pool, setting quotas and reservations, configuring an alternate mount point, enabling compression, and verifying compression effectiveness, helping Linux users save disk space with ZFS.

FilesystemLinuxSystem Administration
0 likes · 6 min read
How to Create ZFS Filesystems and Enable Compression on Linux
Open Source Linux
Open Source Linux
Aug 6, 2024 · Operations

How to Set Up and Secure NTP Time Synchronization on Linux

This guide walks you through installing NTP, configuring server and client settings, applying security restrictions, adding a local clock backup, logging, and verifying synchronization to keep Linux systems accurately timed across a network.

LinuxNTPSystem Administration
0 likes · 8 min read
How to Set Up and Secure NTP Time Synchronization on Linux
DevOps Operations Practice
DevOps Operations Practice
Jul 31, 2024 · Operations

Essential Shell Automation Scripts for System Administration

This article presents a collection of practical Bash scripts that automate common system administration tasks such as disk usage monitoring, MySQL backups, service health checks, temporary file cleanup, resource monitoring, user creation, and subnet IP scanning, each with clear explanations and ready-to-use code.

ScriptingShellSystem Administration
0 likes · 7 min read
Essential Shell Automation Scripts for System Administration
Open Source Linux
Open Source Linux
Jul 30, 2024 · Operations

How to Bind Two NICs to a Single IP for High Availability on Linux

This guide explains how to bind two network interfaces into a single virtual NIC on Linux using the bonding driver, covering supported modes, detailed configuration files, command-line steps, verification commands, and practical tips for ensuring high‑availability without IP duplication.

LinuxNetwork BondingSystem Administration
0 likes · 6 min read
How to Bind Two NICs to a Single IP for High Availability on Linux
Open Source Tech Hub
Open Source Tech Hub
Jul 28, 2024 · Operations

Master Linux Cron: Complete Guide to Scheduling Automated Tasks

This comprehensive guide explains what cron jobs are, how the crond daemon works, the structure of crontab files, user versus system scheduling, syntax details, special characters, environment setup, creation, editing, listing, deletion, troubleshooting, and best practices for reliable Linux automation.

AutomationSchedulingSystem Administration
0 likes · 18 min read
Master Linux Cron: Complete Guide to Scheduling Automated Tasks
Python Programming Learning Circle
Python Programming Learning Circle
Jul 26, 2024 · Operations

Using Supervisor for Process Monitoring and Management on Unix-like Systems

This article introduces Supervisor, a client‑server process monitoring tool for Unix-like systems, explains why it solves persistent process deployment issues, walks through installation, configuration, command‑line usage, advanced features such as process groups and auto‑restart policies, and provides code examples for practical implementation.

LinuxSupervisorSystem Administration
0 likes · 16 min read
Using Supervisor for Process Monitoring and Management on Unix-like Systems
Code Ape Tech Column
Code Ape Tech Column
Jul 26, 2024 · Operations

Bash Scripts for File Consistency Checks, Log Monitoring, and System Automation

This article presents a comprehensive collection of Bash scripts that perform tasks such as verifying file consistency across servers, scheduled log cleaning, network traffic monitoring, numeric analysis in files, automated FTP downloads, interactive number games, Nginx 502 detection, variable assignments, bulk file renaming, IP address validation, and various system administration operations.

AutomationBashShell scripting
0 likes · 24 min read
Bash Scripts for File Consistency Checks, Log Monitoring, and System Automation
DevOps Operations Practice
DevOps Operations Practice
Jul 25, 2024 · Operations

Six Lesser‑Known Linux Distributions and Their Key Features

This article introduces six relatively obscure yet powerful Linux distributions—Slackware, Arch Linux, Manjaro, openSUSE, Gentoo, and Deepin—detailing their origins, design philosophies, and main features such as stability, manual configuration, rolling updates, package management, and user‑friendly interfaces.

Operating SystemsSystem Administrationdistributions
0 likes · 7 min read
Six Lesser‑Known Linux Distributions and Their Key Features
Liangxu Linux
Liangxu Linux
Jul 24, 2024 · Operations

Master the Linux route Command: Manage IP Routing Tables Like a Pro

This guide explains how to install, use, and interpret the Linux route command for displaying and manipulating the kernel IP routing table, covering options, output fields, persistence tricks, and practical examples for querying, adding, deleting, and rejecting routes.

LinuxSystem Administrationip
0 likes · 7 min read
Master the Linux route Command: Manage IP Routing Tables Like a Pro
Tencent Cloud Developer
Tencent Cloud Developer
Jul 10, 2024 · Operations

Leap Second: The Technical Burden Programmers Cannot Bear

The International Earth Rotation Service’s decision to skip the 2024 leap second and ultimately abolish leap seconds by 2035 relieves programmers of complex time‑keeping hacks, as current NTP, PTP, and newer Windows systems can already handle adjustments while past leap seconds have repeatedly disrupted software.

Linux-kernelNTPPTP
0 likes · 16 min read
Leap Second: The Technical Burden Programmers Cannot Bear
DevOps Operations Practice
DevOps Operations Practice
Jul 8, 2024 · Operations

Common Linux Log Files and Useful Commands for Log Analysis

This article introduces common Linux log files, essential command‑line utilities such as cat, less, tail, grep, awk, and sed for viewing logs, and powerful analysis tools like logrotate, journalctl, logwatch, and goaccess, providing practical examples for effective system log management.

Log ManagementSystem Administrationlog analysis
0 likes · 7 min read
Common Linux Log Files and Useful Commands for Log Analysis
MaGe Linux Operations
MaGe Linux Operations
Jul 7, 2024 · Operations

Master Linux Disk Quota, LVM, and RAID: Step-by-Step Configuration Guide

This comprehensive tutorial explains how to set up and manage Linux disk quotas, logical volume management (LVM), and various RAID levels using command‑line tools, providing clear examples for checking kernel support, configuring limits, creating volumes, resizing, snapshotting, and handling RAID arrays.

Disk QuotaLVMLinux
0 likes · 31 min read
Master Linux Disk Quota, LVM, and RAID: Step-by-Step Configuration Guide
MaGe Linux Operations
MaGe Linux Operations
Jul 2, 2024 · Information Security

How to Harden RHEL7: Essential Linux Security Configurations

This guide walks through practical steps to harden a RHEL7 Linux server—including account restrictions, password policies, SELinux enforcement, SSH port changes, firewall rules, and file attribute protections—using concrete commands and configuration edits to boost system security.

LinuxRHEL7SELinux
0 likes · 13 min read
How to Harden RHEL7: Essential Linux Security Configurations
MaGe Linux Operations
MaGe Linux Operations
Jun 26, 2024 · Operations

Why SSH Login Is Slow on CentOS and How to Fix It in Minutes

When multiple CentOS 7 servers in the same rack experience 30‑60 second delays before prompting for an SSH password, the slowdown is usually caused by reverse DNS lookups and GSSAPI authentication, which can be resolved by disabling UseDNS and GSSAPIAuthentication in sshd_config and restarting the service.

CentOSLinuxSSH
0 likes · 4 min read
Why SSH Login Is Slow on CentOS and How to Fix It in Minutes
Liangxu Linux
Liangxu Linux
Jun 12, 2024 · Operations

How to Rotate Nginx Logs with Shell Scripts and Logrotate

This guide explains why nginx logs need regular rotation, shows how to manually split logs using a shell script that backs up, renames, and signals nginx to reopen log files, and demonstrates configuring and testing the logrotate utility for automated daily log rotation and compression.

NGINXSystem Administrationlog rotation
0 likes · 13 min read
How to Rotate Nginx Logs with Shell Scripts and Logrotate
Liangxu Linux
Liangxu Linux
Jun 7, 2024 · Operations

Master Linux xargs with 6 Real‑World Examples for Faster Automation

This tutorial explains the Linux xargs command and provides six practical, step‑by‑step examples—including copying files, deleting by extension, compressing directories, renaming to uppercase, counting lines, and listing user accounts—to help automate common system tasks efficiently.

LinuxShellSystem Administration
0 likes · 8 min read
Master Linux xargs with 6 Real‑World Examples for Faster Automation
Efficient Ops
Efficient Ops
Jun 5, 2024 · Operations

10 Linux Commands That Can Destroy Your System – Why You Should Never Run Them

This article warns about ten extremely dangerous Linux commands—such as rm ‑rf, fork bombs, and disk‑wiping operations—explaining their destructive effects, how they work, and practical safeguards like using aliases or testing only in virtual machines to prevent catastrophic data loss.

LinuxSystem Administrationcommand-line
0 likes · 7 min read
10 Linux Commands That Can Destroy Your System – Why You Should Never Run Them
Liangxu Linux
Liangxu Linux
Jun 2, 2024 · Operations

How to Set Up Real‑Time File Sync with sersync and rsync on Linux

This guide explains what sersync is, its main features and use cases, and provides step‑by‑step instructions—including server preparation, rsync daemon setup, configuration files, password handling, and command examples—to deploy a real‑time file synchronization service on Linux.

LinuxSystem Administrationreal-time file sync
0 likes · 8 min read
How to Set Up Real‑Time File Sync with sersync and rsync on Linux
Liangxu Linux
Liangxu Linux
Jun 2, 2024 · Operations

Mastering the Linux df Command: Quick Ways to Check Disk Usage

This guide explains how to use the Linux df command with various options to display filesystem disk space, inode usage, and filesystem types in human‑readable, kilobyte, megabyte, or gigabyte formats, and shows how to filter or exclude specific filesystem types.

LinuxSystem Administrationcommand-line
0 likes · 10 min read
Mastering the Linux df Command: Quick Ways to Check Disk Usage
Test Development Learning Exchange
Test Development Learning Exchange
May 29, 2024 · Operations

Linux Command Cheat Sheet: File, Directory, Process, Network, and System Management

This guide provides a concise reference of essential Linux commands for file and directory handling, file operations, permission management, searching, process control, networking, system monitoring, hardware information, log handling, text processing, and package management on both Debian‑based and RPM‑based distributions.

LinuxShellSystem Administration
0 likes · 5 min read
Linux Command Cheat Sheet: File, Directory, Process, Network, and System Management
Liangxu Linux
Liangxu Linux
May 20, 2024 · Operations

Mastering Linux Log Management with crontab and logrotate

This guide explains how to define log management goals, handle special logging scenarios for services like MySQL and nginx, and implement automated cleanup using crontab and logrotate, including detailed configuration options and practical examples for reliable log rotation and storage control.

LinuxLog ManagementNGINX
0 likes · 12 min read
Mastering Linux Log Management with crontab and logrotate
Open Source Linux
Open Source Linux
May 16, 2024 · Fundamentals

Unlocking Linux Secrets: A Deep Dive into the /proc Virtual Filesystem

This article explains the Linux /proc virtual filesystem, detailing its purpose as a kernel interface, how to mount it, and describing the most important files and directories—such as /proc/[pid], /proc/self, /proc/net, and security‑related entries—along with example commands for inspecting process information.

KernelLinuxProc Filesystem
0 likes · 22 min read
Unlocking Linux Secrets: A Deep Dive into the /proc Virtual Filesystem
ITPUB
ITPUB
May 7, 2024 · Operations

How Tiny Mistakes Turned Into Massive Outages: Real‑World Ops Incident Stories

A collection of firsthand accounts reveals how seemingly harmless actions—changing system time, mistyping a script name, accidental deletions, and reckless debugging—triggered large‑scale service disruptions, forced emergency rollbacks, and costly penalties, highlighting the high stakes of operational negligence.

OutageSystem Administrationincident response
0 likes · 10 min read
How Tiny Mistakes Turned Into Massive Outages: Real‑World Ops Incident Stories
Liangxu Linux
Liangxu Linux
May 4, 2024 · Operations

Master Linux I/O Monitoring: iostat, iotop, and lsof Explained

This guide introduces three essential Linux I/O commands—iostat for disk activity statistics, iotop for real‑time I/O usage per process, and lsof for listing open files—detailing installation, output interpretation, key parameters, and practical usage examples.

I/O MonitoringLinuxSystem Administration
0 likes · 10 min read
Master Linux I/O Monitoring: iostat, iotop, and lsof Explained
Java Tech Enthusiast
Java Tech Enthusiast
Apr 28, 2024 · Operations

Defining Linux Mastery: Skills and Knowledge

Becoming a Linux master means first grasping why operating systems exist, then steadily acquiring fluency with the command line, system configuration, scripting, performance tuning, security, kernel internals, virtualization, containers, networking, and monitoring tools, while continuously learning across distributions to diagnose faults and optimize resources.

DevOpsLinuxScripting
0 likes · 5 min read
Defining Linux Mastery: Skills and Knowledge
Liangxu Linux
Liangxu Linux
Apr 15, 2024 · Operations

12 Essential Linux Commands to Monitor Memory Usage

This guide presents twelve practical Linux techniques—from basic commands like free and top to advanced tools such as Grafana with Prometheus—enabling administrators to comprehensively track memory consumption, identify bottlenecks, and maintain system stability and performance.

MemorySystem Administrationcommands
0 likes · 8 min read
12 Essential Linux Commands to Monitor Memory Usage
DevOps Operations Practice
DevOps Operations Practice
Apr 10, 2024 · Operations

Common apt Commands for Managing Packages on Ubuntu

This article provides a concise guide to using the apt package manager on Ubuntu, covering installation, updating package lists, upgrading, searching, displaying information, removing packages, and cleaning up unused files with clear command examples.

APTLinuxSystem Administration
0 likes · 4 min read
Common apt Commands for Managing Packages on Ubuntu
Liangxu Linux
Liangxu Linux
Mar 23, 2024 · Operations

Mastering systemd: How to Create, Configure, and Manage Custom Linux Services

This guide explains how to create custom systemd service unit files, configure permissions, environment variables, logging, and resource limits, and shows how to start, stop, and monitor services using systemctl, with detailed examples and advanced options for Linux administrators.

LinuxServiceSystem Administration
0 likes · 8 min read
Mastering systemd: How to Create, Configure, and Manage Custom Linux Services
Liangxu Linux
Liangxu Linux
Mar 10, 2024 · Operations

Essential Linux Commands to Inspect Hardware Details

This guide explains how to use a set of Linux commands—lshw, lscpu, free, df, lspci, and lsusb—to quickly retrieve comprehensive hardware information, helping administrators and users diagnose issues, plan upgrades, and understand system performance.

HardwareLinuxSystem Administration
0 likes · 4 min read
Essential Linux Commands to Inspect Hardware Details
Liangxu Linux
Liangxu Linux
Mar 7, 2024 · Information Security

How Windows Is Bringing Linux‑Style sudo to Its Command Line

Windows 11 Insider builds are adding a native sudo command that lets users elevate individual commands with familiar Linux‑style privilege management, offering finer‑grained control than the traditional "Run as administrator" option while reflecting Microsoft's growing embrace of Linux technologies.

Linux compatibilitySudoSystem Administration
0 likes · 6 min read
How Windows Is Bringing Linux‑Style sudo to Its Command Line
Efficient Ops
Efficient Ops
Mar 6, 2024 · Operations

Is Operations Still a Viable Career After 30? A Veteran’s Perspective

A seasoned cloud operations engineer reflects on age‑related career myths, the evolving job market, the shift from legacy hardware to cloud platforms, diverse ops specializations, relentless learning demands, and advice for newcomers navigating the modern operations landscape.

System Administrationcareer
0 likes · 11 min read
Is Operations Still a Viable Career After 30? A Veteran’s Perspective
Liangxu Linux
Liangxu Linux
Mar 3, 2024 · Operations

How to Use LSOF for Real‑Time Port Monitoring on Linux

This tutorial explains how to use the Linux LSOF command to list open files, identify processes using specific ports, filter TCP connections, and continuously monitor network activity in real time with customizable intervals.

System Administrationcommand-linelsof
0 likes · 8 min read
How to Use LSOF for Real‑Time Port Monitoring on Linux
MaGe Linux Operations
MaGe Linux Operations
Feb 27, 2024 · Operations

How to Mount a New Linux Disk: Step‑by‑Step Guide

This guide walks you through checking a new Linux disk, creating a partition with fdisk, formatting it, mounting it temporarily, configuring /etc/fstab for automatic mounting, and verifying the setup after a reboot.

LinuxSystem Administrationdisk mounting
0 likes · 3 min read
How to Mount a New Linux Disk: Step‑by‑Step Guide
Liangxu Linux
Liangxu Linux
Feb 6, 2024 · Operations

Master Linux Process Management with the ps Command: Tips & Examples

This guide explains the Linux ps command’s syntax, common options, and advanced usage—showing how to list processes, filter by state, view resource usage, display process trees, sort by CPU or memory, monitor in real time, and combine with kill or pkill to manage processes effectively.

LinuxShell scriptingSystem Administration
0 likes · 8 min read
Master Linux Process Management with the ps Command: Tips & Examples
Python Programming Learning Circle
Python Programming Learning Circle
Feb 2, 2024 · Operations

17 Essential Python Scripts for Automating Everyday Tasks

This article presents 17 practical Python scripts covering file management, web scraping, email handling, Excel processing, database interaction, system tasks, image editing, and more, each with code examples and explanations, enabling developers and analysts to automate repetitive workflows and boost productivity across diverse domains.

AutomationEmailPython
0 likes · 26 min read
17 Essential Python Scripts for Automating Everyday Tasks
Liangxu Linux
Liangxu Linux
Jan 24, 2024 · Operations

Master Linux User Group Management: Create, Modify, Delete, and Assign Users

This guide explains how to manage Linux user groups—including creating, renaming, changing GIDs, deleting groups, adding or removing users, viewing group details, switching groups, setting group passwords, and adjusting file ownership—through clear command‑line examples and practical scenarios.

LinuxSystem AdministrationUser Groups
0 likes · 7 min read
Master Linux User Group Management: Create, Modify, Delete, and Assign Users
Practical DevOps Architecture
Practical DevOps Architecture
Jan 18, 2024 · Operations

Migrating Zabbix Web Frontend from Apache to Nginx

This guide explains why and how to replace the single‑threaded Apache httpd service with Nginx for Zabbix, covering installation of Nginx and PHP‑FPM, configuration adjustments, service restarts, and timezone fixes to ensure the Zabbix web interface works correctly.

ApacheNGINXSystem Administration
0 likes · 5 min read
Migrating Zabbix Web Frontend from Apache to Nginx
MaGe Linux Operations
MaGe Linux Operations
Dec 31, 2023 · Operations

Mastering LVM on Linux: Step‑by‑Step Guide to Create, Extend, and Manage Logical Volumes

This article provides a comprehensive, hands‑on tutorial for Linux Logical Volume Manager (LVM), covering installation environment setup, creating physical volumes, volume groups, logical volumes, extending them, resizing file systems, and adding new disks, complete with command‑line examples and explanations.

LVMLinuxLogical Volume Manager
0 likes · 19 min read
Mastering LVM on Linux: Step‑by‑Step Guide to Create, Extend, and Manage Logical Volumes
Open Source Linux
Open Source Linux
Dec 29, 2023 · Operations

What Are the Core Functions and Evolution of Modern IT Operations?

This article outlines the comprehensive responsibilities of internet operations—including stability, security, efficiency, system and application maintenance, database management, automation, and security—while tracing the historical evolution of operational teams from manual data‑center tasks to sophisticated, self‑scheduling platforms.

DevOpsIT OperationsInfrastructure
0 likes · 18 min read
What Are the Core Functions and Evolution of Modern IT Operations?
MaGe Linux Operations
MaGe Linux Operations
Dec 26, 2023 · Operations

Master NFS: Step‑by‑Step Configuration on Rocky Linux

This guide explains what NFS is, walks through setting up a Rocky Linux NFS server and client, covers installing packages, configuring export directories, adjusting permissions, editing /etc/exports, enabling rpcbind and NFS services, opening firewall ports, and mounting the share on the client.

LinuxNFSNetwork File System
0 likes · 11 min read
Master NFS: Step‑by‑Step Configuration on Rocky Linux
Liangxu Linux
Liangxu Linux
Nov 27, 2023 · Operations

Free Up Space on Ubuntu’s /boot Partition with Simple Commands

This guide explains why the /boot partition can fill up on Ubuntu, shows how to check its usage, safely remove old kernel and header packages, clean apt caches, and verify that space has been reclaimed for future updates.

System AdministrationUbuntuboot partition
0 likes · 4 min read
Free Up Space on Ubuntu’s /boot Partition with Simple Commands
IT Services Circle
IT Services Circle
Nov 25, 2023 · Operations

Enabling Microsoft Edge Uninstall on Windows 11 via System Policy

This article explains how the European Union's Digital Markets Act forces Microsoft to provide uninstall options for built‑in apps like Edge, shows where to edit the IntegratedServicesRegionPolicySet.json file to change the disabled flag, and offers a third‑party tool for additional Windows 11 tweaks.

DMAEdgeSystem Administration
0 likes · 4 min read
Enabling Microsoft Edge Uninstall on Windows 11 via System Policy
ITPUB
ITPUB
Nov 21, 2023 · Operations

How I Survived an Accidental rm -fr /* Disaster and Restored My Server

A developer recounts accidentally running rm -fr /* on a production server, explains how quick interruption, clever use of remaining commands, and step‑by‑step recovery restored critical directories, and shares practical safeguards to prevent such catastrophic deletions in the future.

BackupData RecoveryLinux
0 likes · 11 min read
How I Survived an Accidental rm -fr /* Disaster and Restored My Server
Liangxu Linux
Liangxu Linux
Nov 15, 2023 · Operations

How to Install and Use Logwatch for Automated Linux Log Analysis

This guide explains why manual log inspection is tedious, introduces Logwatch as a solution, and provides step‑by‑step commands to install it on CentOS, configure its settings, run analyses instantly, and interpret the generated reports.

CentOSSystem Administrationcron
0 likes · 9 min read
How to Install and Use Logwatch for Automated Linux Log Analysis
Programmer DD
Programmer DD
Nov 9, 2023 · Fundamentals

Why Linux Feels Hard and How to Master the Command Line in 5 Simple Steps

The article explains why beginners find Linux difficult—due to diverse distributions, command‑line unfamiliarity, package management, and configuration—then outlines Unix philosophy, key command‑line traits, and a practical five‑step approach to confidently learn and use Linux commands.

LinuxSystem AdministrationUnix Philosophy
0 likes · 9 min read
Why Linux Feels Hard and How to Master the Command Line in 5 Simple Steps
21CTO
21CTO
Nov 8, 2023 · Fundamentals

Top 8 Must-Visit Linux Websites Every Developer Should Bookmark

Discover a curated list of eight essential Linux websites—including ArchWiki, Explainshell, crontab.guru, Distrowatch, Phoronix, Ubuntu Blog, GamingOnLinux, and the /r/Linux subreddit—that provide tutorials, documentation, tools, and community insights for both newcomers and seasoned users.

LinuxSystem AdministrationWeb Resources
0 likes · 6 min read
Top 8 Must-Visit Linux Websites Every Developer Should Bookmark
Open Source Linux
Open Source Linux
Nov 7, 2023 · Operations

12 Essential Linux Commands to Monitor Memory Usage

This guide lists twelve Linux tools and commands—including /proc/meminfo, atop, free, GNOME System Monitor, htop, KDE System Monitor, memstat, nmon, ps, smem, top, and vmstat—that let you view and analyze RAM consumption in real time, with usage examples and screenshots.

LinuxMemory MonitoringSystem Administration
0 likes · 6 min read
12 Essential Linux Commands to Monitor Memory Usage
Liangxu Linux
Liangxu Linux
Sep 5, 2023 · Operations

How to Install and Use Logwatch for Automated Linux Log Analysis

This guide explains how to install Logwatch on CentOS, configure its settings, run it manually or via daily cron, and interpret the sample email output that summarizes system logs, SSH activity, installed packages, and disk usage.

System Administrationcronlog analysis
0 likes · 8 min read
How to Install and Use Logwatch for Automated Linux Log Analysis
Liangxu Linux
Liangxu Linux
Aug 27, 2023 · Operations

Essential Linux Commands: uname, hostname, dmesg, du, date, echo and More

This guide presents a concise reference of common Linux command‑line utilities—including uname, hostname, dmesg, stat, du, date, echo, watch, which, whereis, locate and updatedb—showing their typical options, usage examples and visual output to help users quickly retrieve system information, manage files and monitor processes.

LinuxOperationsShell
0 likes · 10 min read
Essential Linux Commands: uname, hostname, dmesg, du, date, echo and More
MaGe Linux Operations
MaGe Linux Operations
Aug 23, 2023 · Operations

Master Logwatch: Install and Automate Linux Log Analysis on CentOS

This guide explains why log analysis is essential for Linux system health, walks through installing Logwatch on CentOS, configuring its core settings, automating daily runs via cron, and interpreting sample output for connections, SSH activity, package installs, and disk usage.

CentOSOperationsSystem Administration
0 likes · 8 min read
Master Logwatch: Install and Automate Linux Log Analysis on CentOS
Open Source Linux
Open Source Linux
Aug 23, 2023 · Fundamentals

Unlock Linux Mastery: Essential Commands, Shell Basics, and System Administration Guide

This comprehensive guide introduces Linux fundamentals for programmers, covering core concepts, essential commands, shell usage, file operations, process management, networking, package handling, compression, backup tools, and Vim editing, providing practical examples and step‑by‑step instructions to help you become proficient with Linux.

LinuxSystem Administrationcommand-line
0 likes · 63 min read
Unlock Linux Mastery: Essential Commands, Shell Basics, and System Administration Guide
MaGe Linux Operations
MaGe Linux Operations
Aug 12, 2023 · Operations

su vs sudo: Which Linux Privilege Command Should You Use?

This article explains the differences between the Linux su and sudo commands, covering how each switches user identity, their security implications, permission scopes, logging behavior, usage methods, and ideal scenarios to help you choose the right tool for privileged operations.

LinuxSudoSystem Administration
0 likes · 6 min read
su vs sudo: Which Linux Privilege Command Should You Use?
Architect's Tech Stack
Architect's Tech Stack
Aug 11, 2023 · Operations

Understanding and Using the su and sudo Commands on Linux

This article explains the differences between the su and sudo commands, demonstrates how to create users, switch between them using login and non‑login shells, shows practical examples with code snippets, and covers sudo configuration via the /etc/sudoers file for secure privilege escalation.

LinuxSudoSystem Administration
0 likes · 13 min read
Understanding and Using the su and sudo Commands on Linux
Java Interview Crash Guide
Java Interview Crash Guide
Aug 3, 2023 · Fundamentals

Master Linux Basics: Essential Commands, Shell, System Management, and Vim Editing

This comprehensive guide introduces Linux fundamentals, covering core concepts, essential commands, file and directory operations, user and permission management, process handling, networking, software installation, compression, backup, and Vim editor usage, providing practical examples and clear explanations for developers and system administrators.

LinuxSystem AdministrationVim
0 likes · 57 min read
Master Linux Basics: Essential Commands, Shell, System Management, and Vim Editing
Laravel Tech Community
Laravel Tech Community
Jun 27, 2023 · Operations

Linux System Administration Commands Reference

This article provides a comprehensive reference of common Linux system administration commands, covering system information, date handling, shutdown/reboot, file and directory manipulation, searching, mounting, disk usage, user/group management, permissions, compression, package management, backup, CD/DVD handling, and networking utilities.

BackupLinuxNetworking
0 likes · 24 min read
Linux System Administration Commands Reference
Liangxu Linux
Liangxu Linux
Jun 20, 2023 · Fundamentals

Understanding /dev/tty, /dev/tty0, and /dev/console in Linux

This article explains the distinct roles of the Linux special device files /dev/tty, /dev/tty0, and /dev/console, showing how each maps to the current terminal, the graphical virtual console, and the kernel boot console respectively, with command examples and usage details.

Device FilesLinuxSystem Administration
0 likes · 4 min read
Understanding /dev/tty, /dev/tty0, and /dev/console in Linux
Liangxu Linux
Liangxu Linux
Jun 12, 2023 · Operations

Essential Linux Command Cheat Sheet for System Administration

This article provides a comprehensive, categorized reference of essential Linux commands covering system information, shutdown, file management, searching, mounting, disk usage, user and group handling, permissions, special attributes, compression, package management, networking, backup, and common utilities, helping users quickly locate and apply the right command in daily operations.

LinuxShellSystem Administration
0 likes · 46 min read
Essential Linux Command Cheat Sheet for System Administration
Liangxu Linux
Liangxu Linux
Jun 7, 2023 · Fundamentals

Master Linux Filesystem Hierarchy: Where Every Directory Belongs

This guide demystifies the Linux Filesystem Hierarchy Standard by explaining the purpose of each top‑level directory—such as /bin, /etc, /home, /var, and others—and shows where different types of files should be stored for a clean, maintainable system.

Directory StructureFHSFilesystem
0 likes · 11 min read
Master Linux Filesystem Hierarchy: Where Every Directory Belongs
JD Retail Technology
JD Retail Technology
May 29, 2023 · Fundamentals

Cool Linux Commands and Essential System Operations Guide

This article introduces ten entertaining Linux commands that produce eye‑catching terminal effects, followed by a concise tutorial of essential system, file, search, and network commands for everyday Linux administration and exploration.

LinuxShellSystem Administration
0 likes · 11 min read
Cool Linux Commands and Essential System Operations Guide
Liangxu Linux
Liangxu Linux
May 22, 2023 · Information Security

Force Linux Users to Change Their Password at Next Login

This guide explains how system administrators can require Linux users to reset their passwords on the next login by adjusting the minimum password age with chage or expiring the password using the passwd command, and provides step‑by‑step instructions.

LinuxPassword ManagementSystem Administration
0 likes · 4 min read
Force Linux Users to Change Their Password at Next Login
Liangxu Linux
Liangxu Linux
May 21, 2023 · Operations

Master Linux Memory Monitoring: 6 Essential Commands and How to Use Them

This guide explains why monitoring system memory is crucial for Linux administrators and walks through six practical commands—free, vmstat, /proc/meminfo, top, htop, and per‑process status—detailing their syntax, useful options, example outputs, and how to interpret key metrics for troubleshooting.

FreeLinuxMemory Monitoring
0 likes · 26 min read
Master Linux Memory Monitoring: 6 Essential Commands and How to Use Them
Open Source Linux
Open Source Linux
May 15, 2023 · Operations

Master Linux File Mounting: From ISO Images to NFS and AutoFS

This guide walks you through Linux file system mounting techniques—including manual mounts for ISO images, USB drives, Windows shares, and NFS—as well as permanent fstab entries and automated mounting with autofs, complete with command examples and configuration tips.

FilesystemLinuxMount
0 likes · 13 min read
Master Linux File Mounting: From ISO Images to NFS and AutoFS
Liangxu Linux
Liangxu Linux
May 14, 2023 · Information Security

Why SELinux Matters: How It Works and When (Not) to Disable It

This guide explains what SELinux is, how its mandatory access control policies enforce security, the risks of disabling it, and provides step‑by‑step instructions for turning it off on CentOS while suggesting the permissive mode as a safer alternative.

CentOSLinux securitySELinux
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Why SELinux Matters: How It Works and When (Not) to Disable It