Guides

Four quick checks that show whether an installer really came from the developer, and why antivirus sometimes flags network scanners.

A vendor-neutral guide to choosing network monitoring software: coverage, protocols, scale, deployment, alerting and licensing — with a recommended all-in-one option.

A practical, tool-agnostic walkthrough for building an accurate picture of every device on a small office network — plan the range, scan it, read the results, and turn a one-off scan into a living inventory.

A plain-English guide to reading a network scan — status, IP, hostname, MAC and manufacturer — and to the traps that make results lie: phantom hosts, sleeping devices, randomised MACs and filtered pings.

A network inventory is only accurate on the day you take it. Here is a light, repeatable weekly routine — scan, compare, act — that keeps an accurate picture of a small office network without becoming a project.

A practical checklist for planning an authorized network scan: written permission, scope, timing, notifications, intensity, logging, and handling results responsibly.

A practical reference of the most useful Nmap commands for network discovery and port scanning, with plain-English explanations.

A factual comparison of Nmap and Masscan covering scan depth, speed, detection features, and which situations each open-source scanner fits best.

A neutral comparison of PRTG and Zabbix across licensing, setup effort, platform support, and scalability to help you shortlist a monitoring tool.

Learn Wireshark display filter syntax with real examples for filtering by IP, port, protocol, combining conditions, and troubleshooting common issues.

A neutral comparison of Zabbix and Nagios Core covering architecture, configuration, built-in features, scalability, and learning curve for infrastructure monitoring.