# Four NPMplus Instances — Public IP Mapping

**Last Updated:** 2026-02-07  
**Status:** Active reference  
**Purpose:** One NPMplus instance per public IP (76.53.10.36–39). Nathan's core-2 RPC, Alltra, and HYBX use the **third** instance (76.53.10.38).

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## 1. Public IP → NPMplus Mapping

| # | Public IP    | Internal NPMplus (IP) | VMID  | Purpose / traffic |
|---|---------------|------------------------|-------|---------------------|
| 1 | 76.53.10.36   | 192.168.11.167         | 10233 | Main d-bis.org, explorer, RPC (Option B 6 hostnames), MIM4U, defi-oracle.io, etc. |
| 2 | 76.53.10.37   | TBD                    | TBD   | Second NPMplus instance (to be assigned) |
| **3** | **76.53.10.38** | **192.168.11.169** | **10235** | **Nathan's RPC (rpc-core-2), All Mainnet (Alltra), HYBX nodes and services** |
| 4 | 76.53.10.40   | 192.168.11.170         | TBD   | Fourth NPMplus: dev/Codespaces, Gitea, Proxmox admin (see [DEV_CODESPACES_76_53_10_40.md](DEV_CODESPACES_76_53_10_40.md)) |

- **Port forwarding (UDM Pro):** Each public IP forwards 80, 81, 443 to that instance’s internal IP.
- **First instance (76.53.10.36):** 76.53.10.36:80/443 → 192.168.11.167 (no admin 81 in current forward).
- **Third instance (76.53.10.38):** 76.53.10.38:80/81/443 → 192.168.11.169. See [UDM_PRO_NPMPLUS_ALLTRA_HYBX_PORT_FORWARD.md](UDM_PRO_NPMPLUS_ALLTRA_HYBX_PORT_FORWARD.md).
- **Fourth instance (76.53.10.40):** 76.53.10.40:80/81/443 → 192.168.11.170. Dev/Codespaces tunnel, Gitea, Proxmox admin. See [UDM_PRO_DEV_CODESPACES_PORT_FORWARD.md](UDM_PRO_DEV_CODESPACES_PORT_FORWARD.md).

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## 2. Third NPMplus (76.53.10.38 → 192.168.11.169)

**VMID:** 10235 (NPMplus Alltra/HYBX)  
**Internal IP:** 192.168.11.169  
**Admin UI:** https://192.168.11.169:81

This instance must serve:

- **Nathan's RPC Core-2:** `rpc-core-2.d-bis.org` → http://192.168.11.212:8545 (VMID 2102)
- **All Mainnet (Alltra):** rpc-alltra*.d-bis.org, cacti-alltra.d-bis.org, Firefly/Fabric/Indy (Alltra)
- **HYBX:** rpc-hybx*.d-bis.org, cacti-hybx.d-bis.org, Firefly/Fabric/Indy (HYBX)

**Tunnel (e.g. SFValley2 for Nathan):** Published application route **Service** = `https://192.168.11.169:443` (No TLS Verify), **not** 192.168.11.167.

**Scripts:**

- Add/update proxy hosts on this instance: `NPM_URL=https://192.168.11.169:81 ./scripts/nginx-proxy-manager/update-npmplus-alltra-hybx-proxy-hosts.sh`
- Add rpc-core-2 on this instance: `./scripts/nginx-proxy-manager/add-rpc-core-2-npmplus-proxy.sh` (script targets 192.168.11.169 by default).

See: [NPMPLUS_ALLTRA_HYBX_MASTER_PLAN.md](NPMPLUS_ALLTRA_HYBX_MASTER_PLAN.md), [cloudflare/RPC_CORE_2_NATHAN_SFVALLEY2_TUNNEL.md](cloudflare/RPC_CORE_2_NATHAN_SFVALLEY2_TUNNEL.md), [cloudflare/SFVALLEY2_TUNNEL_MANUAL_RUNBOOK.md](cloudflare/SFVALLEY2_TUNNEL_MANUAL_RUNBOOK.md).

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## 3. Are There Two Active NPMplus Instances?

**Yes.** Currently **two** NPMplus instances are active and documented:

1. **First (76.53.10.36):** VMID 10233 @ 192.168.11.166/.167 — main ingress.
2. **Third (76.53.10.38):** VMID 10235 @ 192.168.11.169 — Nathan core-2 RPC, Alltra, HYBX.

The **second** (76.53.10.37) is TBD. The **fourth** (76.53.10.40) is assigned: internal 192.168.11.170 for dev/Codespaces (Cloudflare tunnel, Gitea, Proxmox admin); VMID TBD when container is deployed.

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## 4. Reference

- [NETWORK_CONFIGURATION_MASTER.md](../11-references/NETWORK_CONFIGURATION_MASTER.md) — edge, port forwards, topology
- [NPMPLUS_ALLTRA_HYBX_MASTER_PLAN.md](NPMPLUS_ALLTRA_HYBX_MASTER_PLAN.md) — third instance backends and setup
- [config/ip-addresses.conf](../../config/ip-addresses.conf) — `IP_NPMPLUS`, `IP_NPMPLUS_ALLTRA_HYBX`