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Dargslan

Dargslan

Understanding Environment Variables in Linux

Learn what Linux environment variables are, how they work, and why they matter for shells, scripts, and services. Practical examples and simple tips to view, set, export, and persist variables for DevOps beginners.

How to Use tar and gzip for Archiving Files

Learn to use tar and gzip to create, compress, and extract archives on Linux with clear, step-by-step commands and examples. Ideal for DevOps and Linux beginners managing files and backups.

Setting Up a Local DNS Resolver with bind9

Set up a local DNS resolver with bind9 on Linux using a clear, step-by-step guide. Ideal for Linux and DevOps beginners—includes configuration tips, security basics, and troubleshooting.

How to Create and Manage SSH Keys for Secure Access

Learn how to create, install, and manage SSH keys for secure server access with step-by-step commands and best practices. Ideal for Linux and DevOps beginners wanting stronger, passwordless authentication.

Building a Linux Firewall

Building a Linux Firewall: A Hands-On Guide to Securing Networks with iptables, nftables, and UFW,Build and secure Linux firewalls with iptables, nftables, and UFW easily.

Secure Shell (SSH) for Linux Admins

Comprehensive SSH Mastery for Linux Administrators,Secure remote access and automation in Linux with complete SSH mastery.

Essential Bash Scripting Techniques for Automation

Learn essential Bash scripting techniques to automate tasks on Linux with clear examples and best practices. Perfect for Linux and DevOps beginners looking to boost efficiency.

How AI Is Changing Everyday Work for IT Professionals and Developers in 2025

AI has become every IT professional’s invisible co-worker. In 2025, developers code alongside AI copilots, and IT admins manage self-healing, predictive systems. This in-depth article explores how artificial intelligence is transforming technical roles and what skills matter most in this new era.

IT Administrator vs Developer in 2025: Roles, Skills, and Future Outlook

In 2025, the line between IT Administrators and Developers is thinner than ever. This in-depth comparison explores their responsibilities, required skills, tools, and how both roles are transforming through DevOps, cloud computing, and automation.

Using grep and awk for Text Processing in Linux

Learn how to use grep and awk to search, filter, and transform text files in Linux. Step-by-step examples and practical tips for Linux and DevOps beginners.