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Network Administration

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Raymond Ops
Raymond Ops
May 3, 2025 · Operations

Master Linux DNS: From Basics to Advanced BIND9 Configuration

Explore the essential role of DNS in the internet, learn how Linux resolves domain names, configure resolvers via /etc/resolv.conf, NetworkManager, systemd-resolved, set up a BIND9 server with zone files, and discover advanced techniques like DNSSEC, DoH, split views, and troubleshooting tools.

BIND9DNSNetwork Administration
0 likes · 11 min read
Master Linux DNS: From Basics to Advanced BIND9 Configuration
Practical DevOps Architecture
Practical DevOps Architecture
Apr 29, 2025 · Fundamentals

Linux Routing Basics: Adding, Deleting Host, Network, and Default Routes

This article explains Linux routing fundamentals, describing how routing tables are used to select interfaces and next hops, detailing the six-step packet routing process, and providing step‑by‑step commands and examples for adding and removing host, network, and default routes on Linux systems.

IPNetwork Administrationcommand-line
0 likes · 7 min read
Linux Routing Basics: Adding, Deleting Host, Network, and Default Routes
Raymond Ops
Raymond Ops
Mar 6, 2025 · Operations

Master SSH Secure Tunnels: Local, Remote, and Dynamic Port Forwarding Explained

Learn how to create secure SSH tunnels using local, remote, and dynamic port forwarding, with step‑by‑step command examples, option explanations, and practical network diagrams that show how to access otherwise unreachable hosts and services through intermediate jump hosts.

Network AdministrationPort ForwardingSSH
0 likes · 13 min read
Master SSH Secure Tunnels: Local, Remote, and Dynamic Port Forwarding Explained
Test Development Learning Exchange
Test Development Learning Exchange
Dec 23, 2024 · Fundamentals

Linux Fundamentals: Directory Structure, Kernel Architecture, and Essential Commands

This article provides a comprehensive overview of Linux fundamentals, covering directory structure, kernel architecture, essential commands, and advanced piping techniques for system administration and development.

Directory StructureLinux fundamentalsNetwork Administration
0 likes · 10 min read
Linux Fundamentals: Directory Structure, Kernel Architecture, and Essential Commands