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Systemd vs SysVinit: Which Is Better for Modern Linux?
Linux & System Administration

Systemd vs SysVinit: Which Is Better for Modern Linux?

A comprehensive technical comparison of systemd and SysVinit for Linux administrators. Covers architecture differences, performance benchmarks, security considerations, and practical recommendations for servers, embedded systems, and containers.
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Dargslan
Lessons from the AWS US-EAST-1 Outage: What Cloud Engineers and System Administrators Can Learn
AWS

Lessons from the AWS US-EAST-1 Outage: What Cloud Engineers and System Administrators Can Learn

The October 2025 AWS US-EAST-1 outage revealed how even the most advanced infrastructures can falter — and what every cloud engineer can learn from it.
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Dargslan
How to Secure SSH Access on Linux Servers
Linux & System Administration

How to Secure SSH Access on Linux Servers

Secure SSH access on Linux servers by using key-based authentication, disabling password login, restricting root access, hardening sshd config, implementing firewall rules, enabling fail2ban, monitoring logs, and using 2FA where possible.
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Dargslan
Linux Networking Essentials Every Admin Should Know
Linux & System Administration

Linux Networking Essentials Every Admin Should Know

Linux system administrators covering networking fundamentals, interface configuration, routing, VLANs, firewalls, VPNs, performance tuning and troubleshooting with hands-on examples for Ubuntu RHEL CentOS.
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Dargslan
AWS US-EAST-1 Service Disruption Report - ECS, EC2, and Dependent Services – October 28, 2025
AWS

AWS US-EAST-1 Service Disruption Report - ECS, EC2, and Dependent Services – October 28, 2025

AWS experienced a significant outage in the US-EAST-1 Region on October 28, 2025, affecting ECS, EC2, and several dependent services such as Fargate, EMR Serverless, MWAA, and Glue. The incident lasted nearly 14 hours and was caused by control-plane contention within ECS’s internal infrastructure.
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Dargslan
Understanding the Linux File System Hierarchy
Linux & System Administration

Understanding the Linux File System Hierarchy

The Linux filesystem hierarchy is an organized tree structure starting from root (/). Key directories include /bin for essential commands, /etc for configuration files, /var for variable data like logs, /home for user files, and /usr for installed software.
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Dargslan
How to Manage Users and Groups in Linux Step by Step
Linux & System Administration

How to Manage Users and Groups in Linux Step by Step

Complete guide to Linux user and group management covering useradd, usermod, groupadd commands, sudo configuration, password policies, file permissions, and security best practices. Includes step-by-step workflows for creating, modifying, and deleting accounts with real examples.
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Dargslan
Linux Command Line Explained: From Basics to Advanced
Linux & System Administration

Linux Command Line Explained: From Basics to Advanced

The command line interface represents one of the most powerful tools available to anyone working with computers today. Whether you're a developer, system administrator, or someone wanting to understand how computers work beneath the surface, mastering the terminal opens doors.
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Dargslan
Mastering Linux File Permissions: A Complete Guide
Linux & System Administration

Mastering Linux File Permissions: A Complete Guide

Understanding Linux file and directory access control is fundamental for administrators and users alike. Proper permission configuration determines system security and functionality—from preventing minor inconveniences to avoiding catastrophic breaches that expose data.
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Dargslan
The Ultimate Linux Beginner’s Roadmap for 2025
Linux & System Administration

The Ultimate Linux Beginner’s Roadmap for 2025

Start with the shell, files, permissions, and package managers. Learn scripting, networking, services, containers, and automation. Build hands-on labs, follow projects, and join communities to stay current with Linux in 2025.
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Dargslan
Linux Print Server Configuration
books

Linux Print Server Configuration

SSH for System Administrators: A Practical Guide to Secure Remote Access,Secure Linux systems with SSH for administration and automation.
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Dargslan
DNS Server with BIND on Linux
books

DNS Server with BIND on Linux

CUPS Print Server on Linux: The Complete Administrator's Guide,Set up and manage print services on Linux using CUPS effectively.
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Dargslan
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