Portal | Level: L2: Operations | Topics: TLS & PKI, Linux Networking Tools | Domain: DevOps & Tooling
Ops Archaeology: The Certificate That Works Sometimes¶
| File | Purpose |
|---|---|
| briefing.md | Scenario briefing with artifacts |
| hints.md | Progressive hints (timed) |
| answer_key.md | Full solution and skills tested |
Ops Archaeology exercise — see ops-archaeology index for context.
Pages that link here¶
- ARP Flux / Duplicate IP
- Answer Key: The Certificate That Works Sometimes
- BMC Clock Skew - Certificate Failure
- DHCP Not Working on Remote VLAN
- HTTP Protocol - Primer
- Jumbo Frames Enabled But Some Paths Failing
- Ops Archaeology: Reverse-Engineering Production Systems
- Scenario: TLS Certificate Expired
- Symptoms
- Symptoms: API Latency Spike, BGP Route Leak, Fix Is Network ACL
- Symptoms: Deployment Stuck, ImagePull Auth Failure, Fix Is Vault Secret Rotation
- TLS Works From Some Clients But Fails From Others
Wiki Navigation¶
Prerequisites¶
- Networking Deep Dive (Topic Pack, L1)
Related Content¶
- Networking Deep Dive (Topic Pack, L1) — Linux Networking Tools, TLS & PKI
- Case Study: API Latency Spike — BGP Route Leak, Fix Is Network ACL (Case Study, L2) — Linux Networking Tools
- Case Study: ARP Flux Duplicate IP (Case Study, L2) — Linux Networking Tools
- Case Study: BMC Clock Skew Cert Failure (Case Study, L2) — TLS & PKI
- Case Study: DHCP Relay Broken (Case Study, L1) — Linux Networking Tools
- Case Study: DNS Looks Broken — TLS Expired, Fix Is Cert-Manager (Case Study, L2) — TLS & PKI
- Case Study: Deployment Stuck — ImagePull Auth Failure, Vault Secret Rotation (Case Study, L2) — TLS & PKI
- Case Study: Duplex Mismatch Symptoms (Case Study, L1) — Linux Networking Tools
- Case Study: IPTables Blocking Unexpected (Case Study, L2) — Linux Networking Tools
- Case Study: Jumbo Frames Partial (Case Study, L2) — Linux Networking Tools