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Networking

(Modified: 2026-09-18) — Written by — 8 min read
The networking and Active Directory concepts every red team technique builds on: HTTP and HTTPS, TCP and UDP, the domain controller, users, groups, and group nesting.
         

(Modified: 2026-09-12) — Written by — 8 min read
Understand T-Mobile 5G Home Internet port-forwarding limits, carrier NAT, and practical options for reaching a home server without a public inbound port.
   

(Modified: 2026-09-12) — Written by — 7 min read
Find out why Tailscale uses a relay, read status and netcheck output, and decide whether a DERP or peer-relay connection needs troubleshooting.
     

(Modified: 2026-09-02) — Written by — 13 min read
A practical comparison of Meshtastic, MeshCore, and Reticulum for off-grid and community mesh networking. Covers routing architecture, hop limits and airtime, static infrastructure versus roaming nodes, and when transport-independent networking with Reticulum genuinely solves a real problem.
 

(Modified: 2026-08-28) — Written by — 10 min read
A practical guide to building rapidly deployable, compact edge-compute mini data centers. Covers chassis and enclosure selection, mini-PC and thin-client compute, rack versus sled layouts, cabling, cooling, storage, out-of-band management, and international power compatibility for boxed-up field IT.
   

(Modified: 2026-08-28) — Written by — 9 min read
How to power and protect a compact edge-compute deployment in the field. Covers UPS runtime sizing and monitoring, DC and solar power, generators, battery chemistry, USB-C power delivery, offline time synchronization, IP and NEMA environmental ratings, and grounding and surge protection for rapidly deployable IT.

(Modified: 2026-06-28) — Written by — 2 min read
Master automation and programmability for the Cisco CCNA 200-301 exam. Learn how automation impacts networks, controller-based architectures, REST APIs, configuration management, and JSON.
         

(Modified: 2026-06-28) — Written by — 2 min read
Master IP connectivity for the Cisco CCNA 200-301 exam. Learn the routing table, forwarding decisions, IPv4 and IPv6 static routing, single-area OSPFv2, and first hop redundancy protocols.
   

(Modified: 2026-06-28) — Written by — 2 min read
Master IP services for the Cisco CCNA 200-301 exam. Learn NAT, NTP, DHCP and DNS roles, SNMP, syslog, QoS per-hop behavior, SSH, and TFTP/FTP.
         

(Modified: 2026-06-28) — Written by — 2 min read
Master network access for the Cisco CCNA 200-301 exam. Learn VLANs, trunking, EtherChannel, Rapid PVST+ spanning tree, discovery protocols, and Cisco wireless architectures.
         

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