# Master Documentation Index — Source of Truth

**Last Updated:** 2026-02-12  
**Purpose:** Treat these documents as the **Bible** for URL, VMID, and port mappings. When fixing placeholders or cleaning up projects, use them as the verifiably correct source.

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## Domain → VMID:port and infrastructure

| Document | Scope | Use when |
|----------|--------|----------|
| **[ALL_VMIDS_ENDPOINTS.md](../04-configuration/ALL_VMIDS_ENDPOINTS.md)** | Complete VMID, IP, hostname, port, and public domain mapping | Resolving which VMID:port a domain or service must use; checking that **only** explorer points to Blockscout. |
| **[RPC_ENDPOINTS_MASTER.md](../04-configuration/RPC_ENDPOINTS_MASTER.md)** | RPC URLs, public domain → NPMplus backend, canonical .env values | Setting RPC_* in .env, configuring NPMplus proxy hosts, Chain 138 / ThirdWeb / DBIS / Sankofa / MIM4U. |
| **[DNS_NPMPLUS_VM_COMPREHENSIVE_ARCHITECTURE.md](../04-configuration/DNS_NPMPLUS_VM_COMPREHENSIVE_ARCHITECTURE.md)** | DNS → NPMplus → VM table | Aligning NPMplus backend targets with VMIDs; must match ALL_VMIDS and RPC_ENDPOINTS_MASTER. |

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## Critical rule: Explorer vs other services

**Only** the **Explorer** (Blockscout) should be pointed at **192.168.11.140** (VMID 5000):

- `explorer.d-bis.org` → 192.168.11.140:80 (web), :4000 (API) ✅

**All other domains** must point to their **correct VMID and port** (see the master docs above). Examples of **incorrect** routing (do not use):

- `sankofa.nexus`, `phoenix.sankofa.nexus` → ~~192.168.11.140~~ ❌  
- Correct: `sankofa.nexus` → 192.168.11.51:3000 (VMID 7801), `phoenix.sankofa.nexus` → 192.168.11.50:4000 (VMID 7800).

When reviewing or fixing documentation and NPMplus config:

1. Resolve every domain from **ALL_VMIDS_ENDPOINTS** or **RPC_ENDPOINTS_MASTER**.
2. Update any doc or script that points a non-explorer domain to 192.168.11.140.
3. Ensure placeholder lists (e.g. [PLACEHOLDERS_AND_COMPLETION_MASTER_LIST.md](PLACEHOLDERS_AND_COMPLETION_MASTER_LIST.md), [GAPS_AND_RECOMMENDATIONS_CONSOLIDATED.md](../GAPS_AND_RECOMMENDATIONS_CONSOLIDATED.md)) reference these master docs and the correct targets.

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## Related

- [PLACEHOLDERS_AND_COMPLETION_MASTER_LIST.md](PLACEHOLDERS_AND_COMPLETION_MASTER_LIST.md) — What to complete for each placeholder
- [REMAINING_COMPONENTS_TASKS_AND_RECOMMENDATIONS.md](REMAINING_COMPONENTS_TASKS_AND_RECOMMENDATIONS.md) — Remaining tasks and recommendations
- [NETWORK_CONFIGURATION_MASTER.md](../11-references/NETWORK_CONFIGURATION_MASTER.md) — Network and IP reference