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797 articles · Page 6 of 8
Selected Java Interview Questions
Selected Java Interview Questions
Dec 19, 2020 · Operations

Linux System Commands Cheat Sheet

This article provides a comprehensive reference of essential Linux system commands covering system information, date and time management, shutdown/reboot, file and directory operations, searching, mounting, disk usage, user and group management, permissions, special attributes, compression, package handling, network utilities, and backup techniques, all presented with concise examples for quick learning.

LinuxUnixcommands
0 likes · 23 min read
Linux System Commands Cheat Sheet
ITPUB
ITPUB
Dec 18, 2020 · Operations

Master Linux System Backup and Restore with tar, rsync, and dd

This guide explains how to back up an entire Linux system or create a disk image using tar, rsync, and dd commands, covering exclusion of system directories, restoration steps, and special considerations for migrating to a new host.

BackupLinuxdd
0 likes · 8 min read
Master Linux System Backup and Restore with tar, rsync, and dd
ITPUB
ITPUB
Dec 14, 2020 · Operations

How to Recover Accidentally Deleted Linux Files with lsof and extundelete

This guide explains why careless file deletion can be disastrous, then walks through two Linux recovery techniques—using lsof to capture still‑open deleted files and employing extundelete to restore data from ext3/ext4 partitions—complete with commands, parameters, and practical tips.

extundeletefile recoverylsof
0 likes · 8 min read
How to Recover Accidentally Deleted Linux Files with lsof and extundelete
Liangxu Linux
Liangxu Linux
Dec 9, 2020 · Operations

Master Linux Environment Variables: 6 Proven Configuration Methods

This guide explains how to read, configure, and persist Linux environment variables—especially PATH—using export commands, user‑level files like ~/.bashrc and ~/.profile, and system‑wide files such as /etc/profile, /etc/bashrc, and /etc/environment, while also detailing the loading order and testing techniques.

Linuxshellsystem administration
0 likes · 12 min read
Master Linux Environment Variables: 6 Proven Configuration Methods
21CTO
21CTO
Dec 9, 2020 · Operations

Why Red Hat Dropped Free CentOS and What It Means for Your Servers

Red Hat announced the end of the free CentOS Linux distribution, replacing it with the rolling‑release CentOS Stream, and detailed the support timelines for CentOS 7 and 8, urging users to consider RHEL subscriptions, build their own rebuilds, or migrate to alternative platforms.

CentOSLinuxMigration
0 likes · 8 min read
Why Red Hat Dropped Free CentOS and What It Means for Your Servers
Liangxu Linux
Liangxu Linux
Dec 6, 2020 · Information Security

Master Linux Security: From Firewall Rules to User & File Permissions

This guide walks through essential Linux security measures, covering common attack vectors, network and OS hardening, firewall configuration with iptables, user and group management, and detailed file‑permission techniques, providing practical commands and examples for robust system protection.

File PermissionsLinuxUser Management
0 likes · 20 min read
Master Linux Security: From Firewall Rules to User & File Permissions
MaGe Linux Operations
MaGe Linux Operations
Nov 30, 2020 · Operations

Unlock Linux’s Dark Side: Master Crypt, Kill, Shred, and More

This guide explores several powerful yet intimidating Linux commands—including crypt, kill, shred, zombie process detection, at midnight scheduling, and daemon management—explaining their purposes, usage nuances, and safety considerations for system administrators and power users.

Command LineLinuxsecurity
0 likes · 6 min read
Unlock Linux’s Dark Side: Master Crypt, Kill, Shred, and More
Open Source Linux
Open Source Linux
Nov 30, 2020 · Operations

Essential Linux Shell Commands for System Monitoring and Maintenance

This guide compiles a comprehensive set of Linux shell commands for deleting zero‑byte files, inspecting processes, checking CPU, memory, disk usage, network load, and other system metrics, plus a collection of useful regular expressions for text processing and validation.

LinuxMonitoringRegex
0 likes · 13 min read
Essential Linux Shell Commands for System Monitoring and Maintenance
Laravel Tech Community
Laravel Tech Community
Nov 25, 2020 · Operations

Comprehensive Guide to Logrotate: Configuration, Usage, and Custom Scripts for Linux Log Management

This article provides an in‑depth tutorial on using the Linux logrotate utility, covering default configuration files, command‑line options, example configurations for services like Nginx, PHP‑FPM, Tomcat, custom Bash and Python rotation scripts, troubleshooting tips, and how to adjust cron scheduling for automated log rotation.

CronLinuxLog Management
0 likes · 21 min read
Comprehensive Guide to Logrotate: Configuration, Usage, and Custom Scripts for Linux Log Management
Liangxu Linux
Liangxu Linux
Nov 18, 2020 · Operations

Diagnosing Linux Server Performance in the First 60 Seconds

This guide walks you through ten essential Linux command‑line tools—uptime, dmesg, vmstat, mpstat, pidstat, iostat, free, sar, and top—explaining what each metric means, how to interpret the output, and how to quickly spot utilization, saturation, and error issues within the first minute of investigation.

Command LineLinuxperformance monitoring
0 likes · 20 min read
Diagnosing Linux Server Performance in the First 60 Seconds
Open Source Linux
Open Source Linux
Nov 4, 2020 · Operations

Step-by-Step Guide to Installing Python 3.6.5 on Linux (with Troubleshooting)

This tutorial walks through checking the default Python version on a Linux system, locating its binaries, downloading Python 3.6.5 source, installing required build dependencies, compiling and installing Python, creating symlinks, and configuring environment variables, while also addressing common network and repository issues.

CompilationInstallationLinux
0 likes · 6 min read
Step-by-Step Guide to Installing Python 3.6.5 on Linux (with Troubleshooting)
Open Source Linux
Open Source Linux
Nov 2, 2020 · Operations

Master Linux System Commands: Essential Tools for Sysadmins

This comprehensive guide presents essential Linux system commands covering hardware inspection, date handling, shutdown/reboot, file and directory management, searching, mounting, disk usage, user/group administration, permissions, packaging, backup, and network utilities, providing a practical reference for system administrators.

LinuxUnixsystem administration
0 likes · 34 min read
Master Linux System Commands: Essential Tools for Sysadmins
Open Source Linux
Open Source Linux
Oct 28, 2020 · Operations

Master Linux Cron: Schedule Tasks Efficiently with Crontab

This guide explains Linux's cron daemon, its configuration files, permission controls, how to write and install crontab scripts, and provides numerous scheduling examples, helping administrators automate tasks efficiently, including command syntax, special characters, and common service commands.

CronLinuxScheduling
0 likes · 9 min read
Master Linux Cron: Schedule Tasks Efficiently with Crontab
ITPUB
ITPUB
Oct 26, 2020 · Operations

Master Linux File Permissions: A Complete Guide to Using chmod

This tutorial explains the Linux chmod command, covering the permission model, how to view permissions with ls -l, numeric and symbolic notations, recursive changes, reference files, and multiple practical examples to help you manage file and directory access securely.

Command LineFile PermissionsLinux
0 likes · 11 min read
Master Linux File Permissions: A Complete Guide to Using chmod
Programmer DD
Programmer DD
Oct 26, 2020 · Operations

Master Logrotate: Complete Guide to Linux Log Rotation and Custom Scripts

This article provides a comprehensive walkthrough of Logrotate on Linux, covering its purpose, default configuration files, key directives, practical examples for Nginx, PHP, Tomcat, and system logs, as well as custom shell and Python scripts for advanced log rotation and troubleshooting.

CronLog ManagementShell script
0 likes · 22 min read
Master Logrotate: Complete Guide to Linux Log Rotation and Custom Scripts
Liangxu Linux
Liangxu Linux
Oct 25, 2020 · Operations

Master Linux File Permissions: A Hands‑On Guide to Using chmod

This tutorial explains the Linux chmod command, covering permission basics, how to view permissions with ls‑l, numeric and symbolic modes, recursive changes, reference files, and special cases like applying execute rights only to directories, all with clear examples and command syntax.

File PermissionsLinuxUnix
0 likes · 11 min read
Master Linux File Permissions: A Hands‑On Guide to Using chmod
Liangxu Linux
Liangxu Linux
Oct 24, 2020 · Operations

Master Linux Cron: From Basics to Advanced Scheduling

This guide explains the Linux cron daemon, how to control the crond service, configure system and user crontabs, manage permissions, create custom cron scripts, use the crontab command syntax, and provides numerous practical scheduling examples.

CronOperationsScheduling
0 likes · 11 min read
Master Linux Cron: From Basics to Advanced Scheduling
ITPUB
ITPUB
Oct 10, 2020 · Operations

Master Logrotate: Complete Guide to Linux Log Rotation, Configuration, and Custom Scripts

This article provides a thorough walkthrough of Linux logrotate, covering its default configuration files, essential command‑line options, key parameters, practical examples for services like nginx, php, and tomcat, custom rotation scripts, cron scheduling, and troubleshooting tips for reliable log management.

CronLinuxLog Management
0 likes · 24 min read
Master Logrotate: Complete Guide to Linux Log Rotation, Configuration, and Custom Scripts
Laravel Tech Community
Laravel Tech Community
Oct 9, 2020 · Operations

Comprehensive Linux Command Reference Guide

This guide presents an extensive collection of Linux commands covering file and directory operations, content viewing, compression, system information, networking, user management, permissions, process control, and system monitoring, each explained with its purpose and typical usage in clear English.

LinuxNetworkingUser Management
0 likes · 16 min read
Comprehensive Linux Command Reference Guide
Selected Java Interview Questions
Selected Java Interview Questions
Oct 6, 2020 · Operations

Comprehensive List of Common Linux Commands

This article provides a detailed, English‑translated reference of essential Linux command‑line tools covering file management, content viewing, compression, system information, networking, user administration, permissions, process control, and system monitoring, useful for both beginners and experienced administrators.

Command LineLinuxUnix
0 likes · 15 min read
Comprehensive List of Common Linux Commands
Liangxu Linux
Liangxu Linux
Oct 6, 2020 · Operations

Master Linux Log Rotation with Logrotate: Configs, Scripts, and Common Fixes

This guide explains how to use Logrotate on Linux for automatic log file rotation, covering default configuration files, key options, example setups for Nginx, PHP, Tomcat, system logs, custom shell and Python scripts, cron scheduling, and troubleshooting techniques to ensure logs are rotated reliably.

CronLinuxLog Management
0 likes · 23 min read
Master Linux Log Rotation with Logrotate: Configs, Scripts, and Common Fixes
Programmer DD
Programmer DD
Sep 30, 2020 · Fundamentals

11 Must‑Know Linux Terminal Tricks to Boost Your Productivity

This article presents a curated list of eleven powerful Linux terminal shortcuts, commands, and utilities—including key bindings, sudo tricks, background execution, scheduling, process management, and media downloading—to help users work faster and solve common command‑line challenges.

Command LineShortcutsproductivity
0 likes · 11 min read
11 Must‑Know Linux Terminal Tricks to Boost Your Productivity
ITPUB
ITPUB
Sep 28, 2020 · Operations

Essential Linux Regex Commands for Quick System Queries

A concise collection of Linux command-line one‑liners demonstrates how to extract IPv4 addresses, disk usage, user information, permissions, and pattern matches using regular expressions and tools like ifconfig, df, cat, cut, sort, and egrep.

LinuxRegexShell scripting
0 likes · 5 min read
Essential Linux Regex Commands for Quick System Queries
macrozheng
macrozheng
Sep 23, 2020 · Operations

Essential Linux Commands Every Java Backend Engineer Should Master

This guide provides Java backend developers with a comprehensive collection of practical Linux commands for CentOS 7.6, covering system service management, file operations, compression, disk and network monitoring, as well as software installation and package management, all illustrated with clear examples and screenshots.

CentOSLinuxbackend development
0 likes · 12 min read
Essential Linux Commands Every Java Backend Engineer Should Master
Liangxu Linux
Liangxu Linux
Sep 19, 2020 · Operations

Enable or Disable Ubuntu’s Root Account in Minutes

Learn step‑by‑step how to activate the root user on Ubuntu, assign a password, configure sudo for password‑less access, and later lock or disable the root account by expiring its password, with clear command examples and safety tips.

$rootLinuxUbuntu
0 likes · 4 min read
Enable or Disable Ubuntu’s Root Account in Minutes
ITPUB
ITPUB
Sep 17, 2020 · Operations

Understanding the Key Differences Between sudo and su in Linux

This article explains how sudo and su differ in password requirements, default behavior, scope of privilege elevation, environment handling, and usage syntax, providing clear examples and guidance for choosing the appropriate command in Linux system administration.

Command LineLinuxUnix
0 likes · 5 min read
Understanding the Key Differences Between sudo and su in Linux
Liangxu Linux
Liangxu Linux
Sep 16, 2020 · Operations

sudo vs su: When to Use Each Linux Privilege Command

This guide explains the key differences between sudo and su on Linux, covering password requirements, default behaviors, environment handling, command syntax variations, and practical usage tips for switching users or executing privileged commands safely.

LinuxUnixsu
0 likes · 5 min read
sudo vs su: When to Use Each Linux Privilege Command
Efficient Ops
Efficient Ops
Sep 7, 2020 · Operations

Top 10 Linux Shell Interview Questions and How to Solve Them

This article walks through ten common Linux shell interview questions, covering script interruption, file header removal, line length checking, viewing non‑printing characters, directory permissions, process states, cut usage, cmp vs diff, echo vs ls, and a brief explanation of inodes.

Command LineInterview QuestionsLinux
0 likes · 7 min read
Top 10 Linux Shell Interview Questions and How to Solve Them
IT Architects Alliance
IT Architects Alliance
Aug 20, 2020 · Fundamentals

Understanding Linux: Kernel, Shell, Filesystem, and Core Components

This article provides a comprehensive overview of Linux’s core architecture, detailing the kernel, shell, memory and process management, virtual file system, various file system types, directory structures, partitioning, mounting procedures, and link mechanisms, offering readers a solid foundation for mastering Linux systems.

filesystemkerneloperating-system
0 likes · 35 min read
Understanding Linux: Kernel, Shell, Filesystem, and Core Components
Senior Brother's Insights
Senior Brother's Insights
Aug 19, 2020 · Operations

Essential Ops Lessons: Avoid Disasters with Backups, Monitoring, and Secure Practices

This guide shares hard‑earned lessons from real‑world server administration, emphasizing careful testing, confirming commands before execution, limiting simultaneous operators, always backing up configurations, protecting data, tightening SSH and firewall security, implementing comprehensive monitoring, and applying disciplined performance‑tuning practices to maintain stable, reliable services.

BackupOperationsperformance-tuning
0 likes · 12 min read
Essential Ops Lessons: Avoid Disasters with Backups, Monitoring, and Secure Practices
ITPUB
ITPUB
Aug 19, 2020 · Operations

Mastering Linux ps: Essential Commands for Process Monitoring and Filtering

This guide explains the Linux ps command, its basic options, output formats, and practical examples for listing all processes, filtering by user, CPU or memory usage, sorting, displaying threads, tree view, security information, root‑owned processes, and combining ps with watch for near‑real‑time monitoring.

Command LineLinuxUnix
0 likes · 10 min read
Mastering Linux ps: Essential Commands for Process Monitoring and Filtering
Open Source Linux
Open Source Linux
Aug 14, 2020 · Operations

Speed Up Linux Workflows: Quick Dir Jump, Vim Tweaks, MySQL Prompt & System Info

This guide introduces several handy Linux command-line tricks, including the 'z' shortcut for rapid directory navigation, a feature‑rich Vim configuration, customizing MySQL prompts, reliable methods to display system version details, and concise commands for checking disk usage, helping users streamline their workflow.

LinuxMySQLsystem administration
0 likes · 4 min read
Speed Up Linux Workflows: Quick Dir Jump, Vim Tweaks, MySQL Prompt & System Info
Architecture Digest
Architecture Digest
Aug 7, 2020 · Operations

A Beginner’s Guide to macOS Terminal: Basics, Common Commands, and Advanced Tips

This article introduces macOS Terminal as the bridge between the kernel and the user interface, explains how to open it, covers fundamental concepts such as commands, paths, and file operations, and provides a collection of practical commands—from simple echoes to disk management and Homebrew installation—while warning about risky operations and offering advanced customization tips.

AutomationCommand LinemacOS
0 likes · 17 min read
A Beginner’s Guide to macOS Terminal: Basics, Common Commands, and Advanced Tips
Open Source Linux
Open Source Linux
Aug 4, 2020 · Operations

Recover Accidentally Deleted Linux Files with lsof and extundelete

This guide explains how to restore mistakenly removed Linux files by first checking if the deleting process still holds the file descriptor using lsof, then copying the open file from /proc, and finally using the extundelete tool when the process has already terminated.

Linuxextundeletefile recovery
0 likes · 7 min read
Recover Accidentally Deleted Linux Files with lsof and extundelete
Liangxu Linux
Liangxu Linux
Jul 22, 2020 · Operations

How to Fix sudo Missing Environment Variables on Linux

When using sudo, Linux resets the environment, causing custom variables to disappear; this guide explains why, shows the relevant lines in /etc/sudoers, and presents three practical methods—including sudo -E, editing env_keep and secure_path, and creating aliases—to retain needed variables.

Linuxbashenvironment variables
0 likes · 4 min read
How to Fix sudo Missing Environment Variables on Linux
21CTO
21CTO
Jul 17, 2020 · Fundamentals

Master Essential Linux Commands and System Administration Basics

This comprehensive guide covers fundamental Linux commands such as ls and cat, user and group management, package handling with RPM and yum, process monitoring tools, file searching utilities, scheduled task creation with at and crontab, and automating interactions using Expect, providing clear examples and code snippets for each topic.

Command LineCronLinux
0 likes · 38 min read
Master Essential Linux Commands and System Administration Basics
Open Source Linux
Open Source Linux
Jul 1, 2020 · Operations

Master Linux Process Management: Essential ps Command Techniques

This guide walks you through the Linux ps command, covering basic usage, common options for listing all processes, filtering by user, CPU or memory usage, process name, PID, threads, tree view, security details, root‑specific formatting, and real‑time monitoring with watch.

LinuxUnixprocess monitoring
0 likes · 6 min read
Master Linux Process Management: Essential ps Command Techniques
DevOps Cloud Academy
DevOps Cloud Academy
Jun 27, 2020 · Operations

Configuring VNC Server and SSH Remote Access on Linux

This guide explains how to install and configure a VNC server on a Linux virtual machine, set a static IP, manage firewall and SELinux settings, and use SSH for remote command‑line access, including all necessary commands and client setup steps.

LinuxRemote AccessVNC
0 likes · 4 min read
Configuring VNC Server and SSH Remote Access on Linux
DevOps Cloud Academy
DevOps Cloud Academy
Jun 26, 2020 · Operations

Linux System User and Group Management Tutorial

This tutorial explains Linux user and group management, covering login prompts, user information commands, adding, modifying, and deleting users, switching users, password handling, file permission changes, and group administration with practical command examples and code snippets.

LinuxOperationsShell Commands
0 likes · 7 min read
Linux System User and Group Management Tutorial
DevOps Cloud Academy
DevOps Cloud Academy
Jun 26, 2020 · Fundamentals

Introduction to Linux Operating System – Basics and Common Distributions

This article provides a beginner-friendly overview of Linux, covering its definition, history, open‑source nature, key features, common distributions such as RedHat, CentOS, and Ubuntu, and related career paths and certifications, helping readers understand why Linux is essential for modern computing.

DistributionsLinuxOpen Source
0 likes · 5 min read
Introduction to Linux Operating System – Basics and Common Distributions
DevOps Cloud Academy
DevOps Cloud Academy
Jun 26, 2020 · Operations

Linux File and Directory Permission Management Tutorial

This tutorial explains Linux file and directory permission management, covering permission categories, how to view, add, revoke, and recursively apply permissions using commands such as ls, chmod, and demonstrates permission notation with examples.

File PermissionsLinuxOperations
0 likes · 3 min read
Linux File and Directory Permission Management Tutorial
Ops Development Stories
Ops Development Stories
Jun 12, 2020 · Operations

Step-by-Step Guide to Upgrading Zabbix 4.0→5.0 and Migrating Elasticsearch to 7.x

This article provides a comprehensive, ordered procedure for upgrading a Zabbix 4.0 monitoring system to version 5.0 using blue‑green deployment, backing up configurations, updating repositories, applying MySQL patches, and then migrating the associated Elasticsearch cluster from 6.1 to 7.x, including all necessary command‑line steps, configuration edits, and post‑upgrade validation.

ElasticsearchLinuxMySQL
0 likes · 11 min read
Step-by-Step Guide to Upgrading Zabbix 4.0→5.0 and Migrating Elasticsearch to 7.x
Open Source Linux
Open Source Linux
Mar 15, 2020 · Backend Development

How to Completely Uninstall Nginx on Linux: Step-by-Step Guide

Learn the complete process to safely remove Nginx from a Linux system, including stopping the service, locating and deleting all related files, disabling auto-start, and preparing for a fresh reinstall, with clear command examples and visual aids.

backendcommand-linesystem administration
0 likes · 3 min read
How to Completely Uninstall Nginx on Linux: Step-by-Step Guide
MaGe Linux Operations
MaGe Linux Operations
Mar 13, 2020 · Operations

Top Linux Interview Questions: GPL, Buffers, Runlevels, Boot Process and More

This article provides concise explanations and command examples for common Linux interview topics, covering GPL and free software, buffer vs cache, runlevels, boot sequence, link types, shell exit status, history timestamps, log analysis, port forwarding, load troubleshooting, fstab fields, packaging, password generation, TCP state, and MySQL root recovery.

Interview Questionsshellsystem administration
0 likes · 9 min read
Top Linux Interview Questions: GPL, Buffers, Runlevels, Boot Process and More
ITPUB
ITPUB
Mar 11, 2020 · Operations

Master Linux File Attributes: Using chattr for Immutable and Append‑Only Files

This guide explains the common chattr command flags—such as A, S, a, i, and +a—detailing their effects on file timestamps, immutability, append‑only mode, and other attributes, and provides practical examples for locking, hiding, and restoring files on Linux systems.

Linuxchattrfile attributes
0 likes · 4 min read
Master Linux File Attributes: Using chattr for Immutable and Append‑Only Files
Liangxu Linux
Liangxu Linux
Mar 4, 2020 · Operations

Master Linux top: A Complete Real‑Time Process Monitoring Guide

This article provides a thorough walkthrough of the Linux top command, explaining its default output, the meaning of each field, how to navigate and customize the interactive interface, and how to use command‑line options for batch mode, refresh intervals, user filtering, and more.

process monitoringsystem administrationtop
0 likes · 14 min read
Master Linux top: A Complete Real‑Time Process Monitoring Guide
Liangxu Linux
Liangxu Linux
Feb 23, 2020 · Operations

Master tmpwatch: Safely Clean Up Unused Files on Linux

This guide explains how to install, configure, and use the Linux tmpwatch/tmpreaper commands—including safety warnings, option details, example usages, and cron automation—to reliably delete files that haven't been accessed or modified within a specified time frame.

CronFile Cleanupsystem administration
0 likes · 9 min read
Master tmpwatch: Safely Clean Up Unused Files on Linux
Open Source Linux
Open Source Linux
Feb 7, 2020 · Operations

How to Set Up Real-Time Data Sync with Sersync and Rsync on CentOS

This guide walks through configuring two CentOS 7.7 hosts for real-time data synchronization using Sersync and Rsync, covering environment preparation, service deployment, configuration file editing, manual testing, daemon startup, and automatic startup via rc.local.

CentOSLinuxdata backup
0 likes · 8 min read
How to Set Up Real-Time Data Sync with Sersync and Rsync on CentOS
Liangxu Linux
Liangxu Linux
Jan 22, 2020 · Operations

Master Linux Backups with dd: 6 Practical Examples

Learn how to protect critical data on Linux by using the powerful dd command, with six detailed examples covering full-disk cloning, image creation, partition backup, floppy and CD ISO imaging, and essential options like conv=noerror and bs for reliable, low-level backups.

dddisk cloningsystem administration
0 likes · 5 min read
Master Linux Backups with dd: 6 Practical Examples
Liangxu Linux
Liangxu Linux
Jan 19, 2020 · Operations

Master Linux Process Monitoring: From ps to htop Explained

This guide maps four classic fictional detectives to Linux process tools—ps, dstat, top, and htop—explains their options, output fields, and interactive features, providing a comprehensive reference for system administrators and developers.

dstathtopprocess monitoring
0 likes · 11 min read
Master Linux Process Monitoring: From ps to htop Explained
MaGe Linux Operations
MaGe Linux Operations
Jan 19, 2020 · Operations

Essential Linux Command Cheat Sheet: File, Network, System & User Management

This article presents a comprehensive collection of essential Linux command-line tools, covering file and directory manipulation, content viewing, compression, system monitoring, user management, network operations, disk and filesystem handling, permissions, process control, and shutdown/reboot procedures, each illustrated with reference images.

Command Lineshellsystem administration
0 likes · 3 min read
Essential Linux Command Cheat Sheet: File, Network, System & User Management
Liangxu Linux
Liangxu Linux
Jan 9, 2020 · Operations

How to Install Offline C++ Man Pages on Linux

This guide walks you through downloading, extracting, and configuring C++ library man pages on a Linux system so that the standard "man" command can provide offline documentation for C++ functions and classes.

C++DocumentationMan Pages
0 likes · 7 min read
How to Install Offline C++ Man Pages on Linux
Liangxu Linux
Liangxu Linux
Jan 4, 2020 · Operations

How to Manage Linux Boot Scripts: rc.local, init.d, chkconfig & More

This guide explains how Linux servers start services automatically, covering rc.local, init.d scripts, chkconfig configuration, run‑level settings, and login‑shell scripts, with step‑by‑step commands and examples for reliable boot‑time automation.

boot scriptschkconfiginit.d
0 likes · 7 min read
How to Manage Linux Boot Scripts: rc.local, init.d, chkconfig & More
Liangxu Linux
Liangxu Linux
Jan 2, 2020 · Operations

Master Linux File Searches: Powerful find Command Techniques

This guide walks you through the Linux find command, covering essential options for locating directories, hidden files, size‑based matches, recent modifications, permission‑restricted items, and more, while also comparing find with locate and showing how to limit CPU and I/O impact.

Shell scriptingfind commandsystem administration
0 likes · 14 min read
Master Linux File Searches: Powerful find Command Techniques
MaGe Linux Operations
MaGe Linux Operations
Dec 18, 2019 · Operations

Mastering Modern IT Operations: Roles, Practices, and Evolution

This article outlines the comprehensive responsibilities and evolution of IT operations, covering system, application, database, security, and platform management, detailing tasks such as infrastructure building, monitoring, optimization, automation, and the shift from manual processes to self‑scheduling systems.

AutomationIT OperationsInfrastructure
0 likes · 20 min read
Mastering Modern IT Operations: Roles, Practices, and Evolution
ITPUB
ITPUB
Dec 11, 2019 · Operations

Master Linux Runlevels and Systemd Targets: How to View, Change, and Secure Them

This guide explains the purpose of Linux runlevels, maps them to systemd targets, shows how to check the current runlevel, change it temporarily or permanently, list services per level, create custom levels, and improve system security through fine‑grained service control.

LinuxRunlevelSystemd
0 likes · 13 min read
Master Linux Runlevels and Systemd Targets: How to View, Change, and Secure Them
Efficient Ops
Efficient Ops
Dec 1, 2019 · Operations

15 Must‑Have CLI Tools to Supercharge Your IT Operations

Discover a curated list of fifteen powerful command‑line utilities—from fast file searchers and interactive Git viewers to multi‑threaded downloaders and terminal session recorders—that can dramatically improve productivity and monitoring for system administrators and DevOps engineers.

CLI ToolsLinuxproductivity
0 likes · 5 min read
15 Must‑Have CLI Tools to Supercharge Your IT Operations
Liangxu Linux
Liangxu Linux
Nov 12, 2019 · Operations

Three Powerful Linux Commands to Quickly Locate the Largest Files

Learn three practical Linux command-line techniques—using ls, find, and du—to quickly identify the largest files or directories on your system, complete with example commands for listing top files, filtering by size ranges, and displaying human‑readable disk usage.

dufile managementfind
0 likes · 5 min read
Three Powerful Linux Commands to Quickly Locate the Largest Files
MaGe Linux Operations
MaGe Linux Operations
Oct 27, 2019 · Operations

Master Linux System Administration: 100 Essential Quiz Questions

This article presents a comprehensive set of 100 multiple‑choice questions covering Linux system administration topics such as daemons, file permissions, package management, networking, and command‑line utilities, along with the correct answers for self‑assessment and exam preparation.

Command LineLinux BasicsQuiz
0 likes · 31 min read
Master Linux System Administration: 100 Essential Quiz Questions
Java Captain
Java Captain
Oct 12, 2019 · Operations

Curated List of Free Technical Books Covering Linux, System Administration, Networking, and More

This article presents a curated collection of over a hundred free technical books—including Linux command‑line guides, system‑administration manuals, computer‑networking textbooks, and Docker tutorials—complete with brief descriptions, download links, and the impressive GitHub star and fork statistics of the source project.

LinuxOperationsfree books
0 likes · 8 min read
Curated List of Free Technical Books Covering Linux, System Administration, Networking, and More
Liangxu Linux
Liangxu Linux
Oct 10, 2019 · Fundamentals

Top 100 Linux Command Quiz: Test Your Sysadmin Knowledge

This comprehensive multiple‑choice quiz covers essential Linux commands, system‑administration tasks, daemon management, file permissions, networking utilities, and package handling, providing a practical way to assess and reinforce your command‑line expertise.

Quizsystem administration
0 likes · 25 min read
Top 100 Linux Command Quiz: Test Your Sysadmin Knowledge
Liangxu Linux
Liangxu Linux
Oct 9, 2019 · Operations

How to Master Linux: A Practical Roadmap for Developers and Sysadmins

This guide explains why learning Linux is essential for developers and system administrators, outlines three learning tracks—operations, application development, and low‑level development—and provides a staged roadmap with concrete commands, tools, and study strategies to become proficient in Linux.

Learning Pathprogrammingsystem administration
0 likes · 9 min read
How to Master Linux: A Practical Roadmap for Developers and Sysadmins
Liangxu Linux
Liangxu Linux
Oct 2, 2019 · Operations

How to Shrink /home and Expand Root on CentOS 7

This guide walks through diagnosing a busy /home mount, installing missing tools, safely unmounting, resizing the home partition, installing XFS utilities, and finally expanding the root filesystem on a CentOS 7 server.

CentOSHOME directoryRoot Expansion
0 likes · 4 min read
How to Shrink /home and Expand Root on CentOS 7
ITPUB
ITPUB
Sep 9, 2019 · Operations

Master Linux Basics: Essential Commands and Learning Path for Beginners

This guide outlines a practical roadmap for Linux newcomers, covering the purpose of learning, essential command‑line tools, recommended resources, habits for working in the shell, Unix‑style thinking, and key skills like Shell scripting, Python, DevOps, and cloud automation.

Command LineLearning GuideLinux
0 likes · 9 min read
Master Linux Basics: Essential Commands and Learning Path for Beginners
21CTO
21CTO
Sep 8, 2019 · Databases

Master MySQL Optimization: Proven Strategies for High Performance and Stability

This comprehensive guide walks you through MySQL optimization philosophy, risk management, stakeholder involvement, practical tools, hardware and system tuning, kernel parameter adjustments, and detailed MySQL configuration tweaks to achieve both performance gains and reliable stability in production environments.

LinuxMySQLdatabase optimization
0 likes · 18 min read
Master MySQL Optimization: Proven Strategies for High Performance and Stability
Liangxu Linux
Liangxu Linux
Sep 4, 2019 · Operations

Automate Linux Memory & Swap Monitoring with Email Alerts

This guide walks through installing the msmtp email client, configuring mutt, using the free command to capture memory and swap statistics, writing Bash scripts to log and email the data, and scheduling the tasks with cron so alerts are sent when swap usage exceeds 80 %.

MonitoringShell scriptemail
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Automate Linux Memory & Swap Monitoring with Email Alerts