Networking / 5 min
Network Troubleshooting Guide: A Practical Order for Finding the Problem
A practical network troubleshooting workflow using link checks, IP configuration, ping, DNS testing, traceroute, and iPerf.
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NAS & Backup / 5 min
NAS Security Checklist for Synology and QNAP
A practical NAS security checklist covering administrator accounts, 2FA, updates, remote access, services, encryption, snapshots, and backups.
Open guideNAS & Backup / 6 min
NAS Performance Troubleshooting Guide: Find the Bottleneck Before You Upgrade
Diagnose slow NAS performance by checking network, disks, CPU, RAM, protocol settings, and workload before spending money on upgrades.
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NAS Backup Strategy Guide: Build a Backup You Can Actually Restore
Build a practical NAS backup strategy using local, off-site, and cloud copies, with sensible retention and restore testing.
Open guidePractical IT / 1 min
Data Transfer Time Calculator
Calculate data transfer and backup duration using data size, link speed, real-world efficiency, and the available backup window.
Open guideNAS & Backup / 1 min
Backup Storage Calculator
Estimate backup storage for full and incremental backups, retention, compression, change rate, and capacity reserve.
Open guideNAS & Backup / 1 min
NAS RAID Capacity Calculator
Calculate usable NAS RAID capacity, parity overhead, drive-failure tolerance, TB-to-TiB conversion, and reserved storage.
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SPF, DKIM & DMARC Checker
Check SPF, DKIM, DMARC, and MX records for a domain with practical email-authentication guidance.
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Home — Practical IT Guides
Practical, field-tested guides for NAS, backups, networking, DNS, and reliable small IT environments.
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