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.
- Red Hat Fixes Podman OCI Archive File Write on RHEL 10Red Hat updates podman packages. Match the exact support stream, apply the signed fixes, validate operations, and retain evidence.
- Red Hat Fixes Perl YAML Code Execution Paths on RHEL 8Red Hat updates perl yaml packages. Match the exact support stream, apply the signed fixes, validate operations, and retain evidence.
- Red Hat Fixes NGINX Vulnerabilities on RHEL 9.2 E4SRed Hat updates nginx packages. Match the exact support stream, apply the signed fixes, validate operations, 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