Cohort-first · 7 weeks · cohort
Network Plumbing for Admins
Interfaces, routes, and firewall basics tied to realistic change tickets.
BRL 1,180 · informational only
Responsible mentor
Paula Nogueira
Lab reviewer who marks up tcpdump snippets like a sports coach.
Program narrative
Wireguard snippets stay out; instead you work through interface renaming, route tables, and nftables snippets aligned to change-window etiquette. Each lab ends with a short written rationale.
Included drills
- Interface lifecycle exercises
- Route debugging with scripted faults
- nftables templates with comments
- Pair labs mirroring ticket language
- Mentor voice notes on your rationales
- Packet capture reading at a humane pace
- Checklist for announcing maintenance
Outcomes we expect you to evidence
- Draft a network change note with test steps
- Isolate a misroute without flapping interfaces randomly
- Pair firewall edits with rollback language
FAQ for this track
We cover addressing and neighbor discovery basics; full ISP design is not included.
Experience notes
“Network Plumbing for Admins finally connected nftables lines to the ticket wording our change board expects.”
— Diego A. · Metro transit ops · Trustpilot