Networks & Sytems Archives

30 Linux Troubleshooting Commands Every Sysadmin Needs

Sep 7, 2026 • Linux

Servers crash at the worst possible times, and when they do, guesswork wastes precious minutes. Every sysadmin builds a personal toolkit of commands that...

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TACACS+ vs RADIUS: Choosing the Right AAA Protocol for Your Network

Sep 4, 2026 • Networks & Sytems

Network administrators face a critical decision when securing infrastructure: which AAA protocol best protects their environment? TACACS+ and RADIUS both deliver authentication, authorization, and...

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How to Migrate from Windows to Linux Without Losing Your Mind

Sep 2, 2026 • How To

Windows 10 support ended on October 14, 2025, and millions of PC owners now face a real choice: buy new hardware for Windows 11,...

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How to Configure Squid Proxy on Linux: A Practical Guide for Beginners

Aug 31, 2026 • How To

If you run a small office network or a home lab, you have probably wondered how to control internet access, block distracting sites, or...

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How to Reset a Cisco Switch Password Without Losing Your Configuration

Aug 30, 2026 • How To

Getting locked out of a Cisco switch is one of those moments that makes every network engineer’s stomach drop. Whether you inherited a device...

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How to Automate Cisco Switch and Router Configuration Backups Using the Archive Feature

Aug 29, 2026 • How To

Every network engineer has faced that sinking feeling — a config change goes wrong, and you realize your last backup is three months old....

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Title: How to Configure VTP on Cisco Switches: A Complete Guide for Network Engineers

Aug 29, 2026 • How To

Managing VLANs across dozens of switches manually eats up hours you do not have. Every new VLAN means logging into every switch, typing the...

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What Is a TACACS+ Server and How to Configure It: A Complete Guide

Aug 27, 2026 • How To

Managing access to dozens of network devices without a centralized system creates security gaps and operational headaches. Every switch, router, and firewall ends up...

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How to Configure a Cisco Switch with a TACACS+ Server: A Complete Guide

Aug 27, 2026 • How To

Managing user access across dozens of network switches with local accounts is a nightmare. Every time someone leaves the team, you log into each...

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How to Configure a Cisco Switch with a RADIUS Server: A Complete Guide for Network Admins

Aug 24, 2026 • How To

Managing access across dozens of switches with local credentials quickly becomes a nightmare. One password change means logging into every device manually. This post...

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GEANTECHNOLOGY

30 Linux Troubleshooting Commands Every Sysadmin Needs

TACACS+ vs RADIUS: Choosing the Right AAA Protocol for Your Network

How to Migrate from Windows to Linux Without Losing Your Mind

How to Configure Squid Proxy on Linux: A Practical Guide for Beginners

How to Reset a Cisco Switch Password Without Losing Your Configuration

How to Automate Cisco Switch and Router Configuration Backups Using the Archive Feature

Title: How to Configure VTP on Cisco Switches: A Complete Guide for Network Engineers

What Is a TACACS+ Server and How to Configure It: A Complete Guide

How to Configure a Cisco Switch with a TACACS+ Server: A Complete Guide

How to Configure a Cisco Switch with a RADIUS Server: A Complete Guide for Network Admins

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