📑 Index
Complete catalog of every page in the wiki. For MOCs and navigation, see 🏠 Home. Updated on every ingest; one-line summary per page.
🌐 Networking
- BGP — Path-vector EGP; policy-driven routing of the internet and cloud hybrid
- 802.1X — Methods Explained — Port-based L2 authentication; EAP methods, supplicant/authenticator/server
- IPsec VPN — L3 encryption framework: AH, ESP, IKE, tunnel vs transport, IKEv2 vs WireGuard
- NAT & PAT — Address translation types, PAT flow mechanics, cloud NAT, IPv6 reality
- PacketFence vs OpenNAC — NAC platform comparison (comparison note)
- RADIUS — AAA workhorse; EAP-over-RADIUS for 802.1X, CoA, RadSec, vs TACACS+
- VLAN & 802.1Q Trunking — L2 segmentation, tag structure, native-VLAN pitfalls, vs VXLAN
OSPF
- OSPF Fundamentals — Link-state mechanics, neighbor states, DR/BDR, network types, metric
- OSPF LSA Types and Areas — All LSA types and how area types (stub, totally stub, NSSA, totally NSSA) filter them
- OSPF Summarization — Inter-area and external summarisation at ABRs and ASBRs
🐧 Linux
(empty — MOC scaffold only)
🖥️ Server Infrastructure
- Backup Fundamentals — RPO and RTO — RPO vs RTO, backup types, 3-2-1 rule, snapshot vs backup, tiering
- RAID Levels — Striping/mirroring/parity primitives, RAID 0/1/5/6/10, hardware vs software, modern alternatives
- SAN vs NAS — Block vs file vs object storage; FC/iSCSI/NFS/SMB; cloud equivalents
- Type 1 vs Type 2 Hypervisors — Bare-metal vs hosted, virtualization concepts, why network engineers care
☁️ Cloud
AWS
- AWS Core Concepts — Regions, AZs, global vs regional, shared responsibility, pricing, account structure
- AWS EC2 Fundamentals — VMs as a service: AMIs, instance types, lifecycle, storage, pricing modes
- AWS IAM Fundamentals — Principals, policies, evaluation, AssumeRole, instance profiles, federation
- AWS S3 Fundamentals — Object storage: buckets, keys, storage classes, access control, encryption
- AWS Security Groups vs NACLs — Stateful vs stateless filtering, when to use which, pitfalls
- AWS Study Plan — for Network Engineers — 80/20 roadmap focused on hybrid networking
- AWS VPC Fundamentals — Virtual networks in AWS: CIDR, subnets, routing, IGW/NAT, connectivity options
- VPC knowledge base — AWS VPC reference (image-based)
📦 Containers
(empty — MOC scaffold only)
🔄 DevOps
(empty — MOC scaffold only)
🔐 Cybersecurity
(empty — MOC scaffold only)
🗄️ Database
- ACID Transactions — Atomicity/Consistency/Isolation/Durability, isolation levels, BASE counterpoint
- Database Indexing — B-trees, composite indexes, leftmost-prefix rule, covering indexes, when indexes hurt
- Databases — Key Tools & Technologies — Quick reference of engines and tools (legacy seed note)
- Relational vs NoSQL Databases — The fundamental split; SQL vs document/KV/wide-column/graph; CAP theorem
💻 Programming
- Git Fundamentals — Mental model (snapshot + pointer), merge vs rebase, undoing, .gitignore, GitOps
- Programming Paradigms — Imperative / procedural / OOP / functional; declarative meta-axis
- Python for Operations — Python for IT: types, control flow, venvs, idioms, network/cloud libraries
⚙️ Automation
- Ansible Fundamentals — Inventory → module → task → play → playbook → role; network automation; vs Terraform
- Declarative vs Imperative Automation — The core mental model with concrete Bash-vs-Ansible comparison
- Idempotence — Mathematical definition, automation applications, “runs twice” test
🔗 Cross-cutting Concepts
The connective tissue of the vault. Each concept appears in 3+ domains.
- Authentication — 802.1X, PAM, IAM, OAuth, mTLS, Zero Trust
- Automation-IaC — Declarative vs imperative, Terraform/Ansible, GitOps
- DNS — BIND, systemd-resolved, Route 53, Azure DNS, CoreDNS
- Encryption — TLS, IPsec, LUKS, KMS, envelope encryption, PKI
- High Availability — VRRP, ELB, AZs, replicas, active/active vs active/passive
- Identity — RADIUS, LDAP, IAM, Entra, Kerberos, SPIFFE
- Observability — SNMP, journald, CloudWatch, Prometheus, SIEM, eBPF
- Routing — OSPF, BGP, Linux routes, VPC routes, service mesh
- Secrets Management — Vault, KMS, Secrets Manager, Key Vault, SOPS
- Segmentation — VLAN, SG/NSG, NetworkPolicy, microsegmentation
📚 Abstraction Layers
- L2 — Ethernet, VLAN, MAC, 802.1X, STP
- L3 — IP, routing, OSPF, BGP, VPC/VNet routing
- L4 — TCP/UDP, load balancers, stateful firewalls
- L7 — HTTP, TLS, ALB/App Gateway, service mesh, WAF
- IaaS — EC2, VMs, raw networks
- PaaS — App Service, ECS, managed databases
- SaaS — finished products consumed over the network