
TechGeeks Knowledge Base
Clear explanations, setup guides, and troubleshooting help for networks, security, AI, Linux, homelabs, and PisoWiFi.
Networking
Routing, switching, wireless, monitoring, diagrams, and practical infrastructure notes from real environments.
Network Security
VPNs, firewall policy, segmentation, hardening, account protection, and defensive operations.
AI
Useful AI workflows, automation ideas, model experiments, prompt patterns, and honest implementation notes.
PisoWiFi
Portal setup, vouchers, customer guidance, hotspot operations, troubleshooting, and deployment notes.
Linux & Homelab
Servers, storage, virtualization, containers, monitoring, backups, and lab designs that build production-ready habits.
Turn the field notes into action.
Working through a problem? Start with the guides and checklists, compare the equipment your plan needs, or get help with a specific network, server, or site.
Request practical help
Send the network, site, Linux, security, AI, PisoWiFi, or ISP problem you are trying to solve.
Get field notes
Follow new articles, checklists, and resource updates as the TechGeeks library grows.
Recommended gear
Compare equipment categories, check the manufacturer's requirements, and read the buying notes before choosing a model.
Built for practical technical decisions.
Find the explanation behind a setting, the tradeoffs in a design, and the checks that tell you whether a change did what you intended.
A working demo is only a starting point. Recovery steps, access controls, and a way to check the result matter just as much.
Latest Field Notes
Recent guides and security notices, with source links and practical next steps.
- Palo Alto Networks Assesses PHP RCE Risk in PAN-OS and PanoramaPalo Alto Networks says all PAN-OS and Panorama versions are affected by two PHP RCE flaws. Restrict management access, add coverage, and retain evidence.
- Ubuntu USN-8948-1 and USN-8948-2 Fix Critical PHP RCE FlawsUbuntu USN-8948-1 and -2 fix two critical PHP RCE flaws across current and ESM releases. Update packages, restart workers, and retain evidence.
- Docker Updates Sandbox Trust Stores After eMudhra CA CompromiseDocker rebuilt Sandbox templates after the eMudhra CA compromise. Refresh images or trust stores, restart applications, validate, and retain evidence.
Professional reading path
Network & Security Field Notes
Technical guidance for teams responsible for production networks, security controls, architecture decisions, and infrastructure operations.
Need an independent technical partner for a live environment? Explore TechGeeks Consulting
