Tag

System Administration

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Raymond Ops
Raymond Ops
Jun 16, 2025 · Operations

Step‑by‑Step Guide to Install and Configure Samba on CentOS 7

This tutorial walks through installing Samba on CentOS 7, creating system and Samba users, setting up a shared directory, configuring smb.conf, starting services, and then configuring a client to connect, mount, and auto‑mount the share using CIFS, providing a complete end‑to‑end solution.

CIFSCentOSFile Sharing
0 likes · 6 min read
Step‑by‑Step Guide to Install and Configure Samba on CentOS 7
Raymond Ops
Raymond Ops
Jun 12, 2025 · Operations

Step-by-Step Guide to Building a Software RAID 5 on Linux with mdadm

Learn how to create, configure, and manage a software RAID 5 array on CentOS 7 using mdadm, covering partition preparation, RAID creation, filesystem formatting, mounting, status checks, hot‑spare handling, device removal, and expansion, with complete command examples and expected outputs.

CentOSLinuxRAID5
0 likes · 8 min read
Step-by-Step Guide to Building a Software RAID 5 on Linux with mdadm
Raymond Ops
Raymond Ops
Jun 9, 2025 · Operations

Mastering LVM Snapshots: Create, Restore, Merge and Test Environments

This guide explains the LVM snapshot mechanism, demonstrates how to create snapshots, restore individual files or entire volumes, merge snapshots back into the original LV, and use snapshots to build disposable test environments on Ubuntu systems.

LVMLinuxSystem Administration
0 likes · 9 min read
Mastering LVM Snapshots: Create, Restore, Merge and Test Environments
Raymond Ops
Raymond Ops
Jun 6, 2025 · Operations

Master Linux Disk Usage: Using df and du Commands Effectively

This guide explains how to use the Linux df and du commands to inspect disk space, interpret their options such as -h, -k, -i, and -T, view partition usage, directory-specific usage, inode information, and avoid common pitfalls when measuring file sizes.

LinuxSystem Administrationcommand line
0 likes · 4 min read
Master Linux Disk Usage: Using df and du Commands Effectively
IT Xianyu
IT Xianyu
Jun 5, 2025 · Operations

Diagnose MySQL Slow Queries on AlmaLinux: One‑Click Shell Monitoring Scripts

Learn how to quickly pinpoint MySQL performance bottlenecks on AlmaLinux by using built‑in tools like top, iotop, ss, and netstat, and automate snapshot collection with a simple Bash script that records system and container metrics for later analysis.

AlmaLinuxDockerMySQL
0 likes · 20 min read
Diagnose MySQL Slow Queries on AlmaLinux: One‑Click Shell Monitoring Scripts
Raymond Ops
Raymond Ops
Jun 3, 2025 · Operations

Understanding Linux Inodes, File Operations, and Log Management

This article explains Linux inode table structure, how commands like ls, stat, cp, mv, and rm interact with inodes, compares hard and soft links, outlines common system log files and their formats, and demonstrates centralizing logs on a rsyslog server.

File SystemInodeLinux
0 likes · 9 min read
Understanding Linux Inodes, File Operations, and Log Management
Raymond Ops
Raymond Ops
May 24, 2025 · Operations

How to Install and Configure rsync on Windows Server for Automated Backups

This guide walks through the required environment, Windows Server rsync installation, configuration of rsyncd.conf and password files, service startup, port verification, and client-side commands to achieve reliable, scheduled file synchronization between Windows machines.

BackupSystem AdministrationWindows Server
0 likes · 4 min read
How to Install and Configure rsync on Windows Server for Automated Backups
Deepin Linux
Deepin Linux
May 19, 2025 · Operations

Linux System Performance Bottleneck Analysis and Optimization Guide

This comprehensive guide explains how to monitor, diagnose, and resolve Linux server performance bottlenecks by covering essential command‑line tools, logging, automated scripts, and optimization techniques for CPU, memory, disk I/O, and network, with practical case studies and code examples.

LinuxOptimizationPerformance Monitoring
0 likes · 40 min read
Linux System Performance Bottleneck Analysis and Optimization Guide
Raymond Ops
Raymond Ops
May 15, 2025 · Operations

Master Linux System Basics: Time, Hostname, Users, Network & Process Commands

This guide provides a comprehensive overview of essential Linux system administration tasks, covering how to view and set system time, manage hostnames, inspect kernel information, handle user and group files, use common network utilities, monitor disk usage, and track processes with tools like top and ps.

LinuxNetwork UtilitiesProcess Monitoring
0 likes · 42 min read
Master Linux System Basics: Time, Hostname, Users, Network & Process Commands
Cognitive Technology Team
Cognitive Technology Team
May 13, 2025 · Operations

Essential Linux Log Files to Monitor and How to Access Them

Monitoring key Linux log files—such as syslog, auth.log, kern.log, and others—is crucial for system health, security, and troubleshooting, and this guide explains the purpose of each log, practical commands for viewing them, and automation techniques using scripts, cron, and tools like journalctl and Sematext.

LinuxSystem Administrationbash
0 likes · 20 min read
Essential Linux Log Files to Monitor and How to Access Them
Efficient Ops
Efficient Ops
May 5, 2025 · Operations

Mastering Linux Find: 8 Powerful Use Cases for System Operations

This article explains why the Linux find command is essential for administrators, walks through a common interview question about deleting year‑old log files, and then presents eight practical find usages—including name patterns, file types, timestamps, size, permissions, ownership, execution actions, and directory searches—complete with ready‑to‑run code examples.

LinuxSystem Administrationfile-search
0 likes · 8 min read
Mastering Linux Find: 8 Powerful Use Cases for System Operations
Java Tech Enthusiast
Java Tech Enthusiast
May 4, 2025 · Operations

Comprehensive Linux Command Cheat Sheet

This cheat sheet compiles essential Linux command‑line tools—including navigation (cd, pwd, ls), file manipulation (cp, mv, rm, cat), searching (find, grep), permission management (chmod, chown), archiving (tar), text processing (cut), and redirection or piping—each with common options and practical usage examples for everyday system administration.

LinuxSystem AdministrationUnix
0 likes · 19 min read
Comprehensive Linux Command Cheat Sheet
Raymond Ops
Raymond Ops
May 2, 2025 · Operations

How to Configure Linux Swap Space for Better Performance

This guide explains what swap space is, why it’s essential for Linux systems, and provides step‑by‑step instructions for configuring swap files or partitions, viewing usage, and understanding its benefits for memory extension, performance optimization, and system stability.

LinuxMemory ManagementSystem Administration
0 likes · 5 min read
How to Configure Linux Swap Space for Better Performance
Efficient Ops
Efficient Ops
Apr 29, 2025 · Operations

Master Linux Performance: Essential Monitoring Tools & Commands

This guide compiles the most important Linux performance analysis utilities—such as vmstat, iostat, dstat, iotop, pidstat, top, htop, mpstat, netstat, ps, strace, uptime, lsof, and perf—explaining their usage, output fields, and how they fit into a comprehensive system observability workflow.

LinuxObservabilityPerformance Monitoring
0 likes · 15 min read
Master Linux Performance: Essential Monitoring Tools & Commands
Raymond Ops
Raymond Ops
Apr 23, 2025 · Operations

Master Linux Syslog: Configure, Manage, and Rotate Logs Like a Pro

This guide explains how Linux syslog collects system messages, details common log files and their purposes, describes syslogd, klogd, and logrotate services, shows log formats, configuration syntax, and provides step‑by‑step examples for setting up both log receivers and senders.

LinuxRHELSystem Administration
0 likes · 16 min read
Master Linux Syslog: Configure, Manage, and Rotate Logs Like a Pro
Raymond Ops
Raymond Ops
Apr 18, 2025 · Operations

Master Linux File Sharing: Configure FTP, Samba, NFS & iSCSI Step‑by‑Step

This guide walks you through configuring Linux file‑sharing services—including VSFTPD for FTP, Samba for SMB/CIFS, NFS for network file systems, and iSCSI for block‑level storage—covering installation, security options, client access, and automatic mounting.

FTPFile SharingLinux
0 likes · 36 min read
Master Linux File Sharing: Configure FTP, Samba, NFS & iSCSI Step‑by‑Step
Raymond Ops
Raymond Ops
Apr 17, 2025 · Operations

Master LVM on Linux: Create, Extend, Reduce, and Snapshot Volumes

This guide explains Linux LVM fundamentals, covering physical volume creation, volume group management, logical volume operations such as creation, resizing, removal, as well as snapshot creation and restoration, complete with practical command-line examples for each step.

LVMLinuxSystem Administration
0 likes · 11 min read
Master LVM on Linux: Create, Extend, Reduce, and Snapshot Volumes
Raymond Ops
Raymond Ops
Apr 16, 2025 · Information Security

Boost Linux Server Security: Practical Hardening Steps for RHEL7

This guide walks through a comprehensive Linux hardening checklist for RHEL7, covering account locking, password policies, SSH port changes, SELinux activation, firewall tightening, and file attribute protections to elevate the system to a B1 security level.

HardeningLinuxRHEL7
0 likes · 12 min read
Boost Linux Server Security: Practical Hardening Steps for RHEL7
Raymond Ops
Raymond Ops
Apr 11, 2025 · Operations

How to Force a Filesystem Check on Linux Root Partition (forcefsck)

This tutorial explains why running fsck on a mounted root filesystem fails, shows how to inspect the last check time with tune2fs, and provides step‑by‑step commands to create a forcefsck file, reboot, and verify that the root filesystem check was performed.

LinuxSystem Administrationforcefsck
0 likes · 5 min read
How to Force a Filesystem Check on Linux Root Partition (forcefsck)