Networking for Admins

Networking for Admins: Wire Reality

You build small topologies, break them on purpose, and write change notes that reference concrete sysctl and nftables lines instead of vibes.

Duration
7 weeks
Format
Live cohort
Tuition reference
KRW 2,320,000

Lead mentor notes

Hana Sato

Lead Linux instructor with a decade of production fleet work across APAC.

Visual for Networking for Admins: Wire Reality

What is inside

  • Three-node topology kit with scripted faults
  • nftables rule reading clinic
  • Congestion lab with iperf notes
  • DNS tracing without GUI helpers
  • WireGuard tunnel bring-up checklist
  • Weekly async Q&A threads
  • Capstone: network change packet for reviewers

Outcomes you can cite

  1. Describe a TCP stall using evidence from ss output
  2. Draft a firewall change with rollback lines
  3. Trace DNS resolution across recursive hops

Participant voices

“The change packet capstone replaced my vague 'network issue' tickets with actual diffs.”
Chris · Help desk graduate · ★★★★★

Straight FAQ

We cover dual-stack basics and common pitfalls. Deep provider BGP is out of scope.
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