diff --git a/.gitignore b/.gitignore
index 2d4067f..042b984 100644
--- a/.gitignore
+++ b/.gitignore
@@ -27,6 +27,8 @@ server_config.json
client_config.json
client_state.json
local_collector_state.json
+certs/
+*.bak
test_*.json
test_*.db
test_pipeline_master_ca/
diff --git a/README.md b/README.md
index 1899a7f..eb60454 100644
--- a/README.md
+++ b/README.md
@@ -5,13 +5,14 @@
# LOGAR: Fleet Log Aggregation & Centralized Provisioning System
### *Secure Log Aggregation, PKI Fleet Licensing & Centralized Delivery for Autonomous AI Analysis*
-[](RELEASE_NOTES.md)
-[](tests/)
+[](RELEASE_NOTES.md)
+[](tests/)
[](https://gitea.eibl.tech/me0nline/LOGAR/wiki/PKI-and-Licensing)
+[](docs/ADMIN_GUIDE.md)
**LOGAR** is an enterprise-grade log aggregation, normalization, and centralized provisioning system built for heterogeneous server fleets (Windows & Linux). It pairs ultra-lightweight, zero-state edge forwarders with a secure centralized server hub that enforces mutual TLS 1.3 (**mTLS**) authentication, dynamic PKI fleet licensing with cryptographic seat leasing, 12-hour temporal persistence tracking, and direct anomaly pass-throughβdelivering clean, structured, verified log telemetry directly to **Hermes AI** for autonomous deep reasoning, contextual root-cause analysis, and operational decision-making.
-> π **Comprehensive Technical Documentation**: Full architectural specifications, state machines, PKI X.509 OID definitions, branding assets, and complete REST API references are maintained on the **[LOGAR Gitea Wiki](https://gitea.eibl.tech/me0nline/LOGAR/wiki)**.
+> π **Comprehensive Administrator & Operations Guide**: Complete setup, database switching, ingestion queue tuning, zero-knowledge OpenPGP encryption, security runbooks, and REST API references are available in the **[Admin Guide (docs/ADMIN_GUIDE.md)](docs/ADMIN_GUIDE.md)** and mirrored on the **[LOGAR Gitea Wiki](https://gitea.eibl.tech/me0nline/LOGAR/wiki/ADMIN_GUIDE)**.
---
@@ -19,10 +20,13 @@
- **Zero-State Edge Forwarders**: Windows (`Win_Client`) and Linux (`Linux_Client`) agents maintain zero local databases, zero cache files, and minimal memory footprint.
- **Mutual TLS 1.3 (`:9443`)**: Enforces bidirectional cryptographic identity verification (`ssl.CERT_REQUIRED`) for all streaming log frames.
-- **Hierarchical PKI & Seat Licensing**: Subordinate CAs automatically enroll and sync seat quotas with the Master Authority (`logar.eibl.tech`) over WebSockets.
+- **Hierarchical PKI & Seat Licensing**: Subordinate CAs automatically enroll and sync seat quotas with the Master Authority (`logar.eibl.tech`) over WebSockets. Active module capabilities (e.g. `enterprise_db`) are introspected dynamically.
+- **Multi-Engine Storage Backend**: Switch seamlessly between lightweight local SQLite (WAL mode) and external enterprise databases (PostgreSQL, MySQL, MariaDB) with automated schema migration.
+- **High-Throughput Ring Buffer**: In-memory ingestion queue with configurable batch flushing to eliminate disk I/O bottlenecks during peak traffic bursts.
+- **Zero-Knowledge Data Encryption**: End-to-end payload encryption at rest using server X.509 RSA-2048 / OpenPGP keys for external SQL databases.
- **12-Hour Temporal Persistence**: Evaluates anomalies over a rolling 12-hour temporal window, tracking occurrence velocity and first/last seen metrics.
- **Direct Hermes AI Provisioning (`:8443`)**: Exposes verified anomalous telemetry directly to Hermes AI via `/api/hermes/report` without heuristic bottlenecks.
-- **WebUI Dashboard**: Authenticated, 2-tab management console for live anomaly telemetry, client seat leasing, and Sub-CA lifecycle management.
+- **WebUI Dashboard**: Authenticated, clean management console for live anomaly telemetry, client seat leasing, modular licensing status, storage engine configuration, and Sub-CA lifecycle management.
---
@@ -157,7 +161,7 @@ LOGAR/
## Testing & Cross-Compilation
```bash
-# Run full unit test suite (42 tests)
+# Run full unit test suite (51 tests)
python -m unittest discover -s tests -v
# Run end-to-end mTLS pipeline integration test
@@ -171,8 +175,9 @@ python compilation/package_dist.py --target all
## Documentation & Deep Dives
-For in-depth operational guides, lifecycle state machines, and PKI specifications, consult the **[LOGAR Gitea Wiki](https://gitea.eibl.tech/me0nline/LOGAR/wiki)**:
+For in-depth operational guides, lifecycle state machines, and PKI specifications, consult the **[LOGAR Gitea Wiki](https://gitea.eibl.tech/me0nline/LOGAR/wiki)** and local documentation:
+* [Administrator & Operations Guide](docs/ADMIN_GUIDE.md) (*Mirrored at [Wiki: ADMIN_GUIDE](https://gitea.eibl.tech/me0nline/LOGAR/wiki/ADMIN_GUIDE)*)
* [Architecture & Design Details](https://gitea.eibl.tech/me0nline/LOGAR/wiki/Architecture-and-Design)
* [System State Machines & Subsystem Lifecycles](https://gitea.eibl.tech/me0nline/LOGAR/wiki/State-Machines-and-Lifecycles)
* [PKI Architecture & Custom X.509 Seat OIDs](https://gitea.eibl.tech/me0nline/LOGAR/wiki/PKI-and-Licensing)
diff --git a/RELEASE_NOTES.md b/RELEASE_NOTES.md
index 2f4bbb5..a52a5c3 100644
--- a/RELEASE_NOTES.md
+++ b/RELEASE_NOTES.md
@@ -1,5 +1,34 @@
# LOGAR Release Notes
+## [v0.3.5] - 2026-09-30
+
+### ποΈ Enterprise Multi-Engine Storage Architecture
+- **Dynamic Backend Switching**: LOGAR Server Hub now supports runtime switching between lightweight Local SQLite (WAL Mode) and Enterprise SQL servers (PostgreSQL and MySQL / MariaDB) via SQLAlchemy.
+- **Automated Schema Initialization**: Switching to an external database automatically verifies connectivity, provisions normalized tables (`telemetry_events`, `client_seats`, `license_config`, `admin_users`), creates optimized indices, and runs health verification.
+- **Configuration Persistence**: Persistent backend settings are saved in `server_config.json` under `db_engine` and isolated from temporary test environments.
+
+### β‘ Ingestion Ring Buffer & High-Throughput Batch Flusher
+- **In-Memory Queue Buffering**: Built-in Python `queue.Queue` ring buffer with background worker thread decoupled from socket I/O.
+- **Burst Protection & Cache Mode**: High-velocity bursts are accepted without blocking mTLS 1.3 socket listeners; configurable batch size (`buffer_batch_size`, default 100) and flush interval (`buffer_flush_interval_sec`, default 2.0s).
+- **Graceful Shutdown**: Unflushed buffer entries are cleanly committed to storage on server shutdown.
+- **Explicit Opt-In Administrative Control**: Ingestion buffering is strictly optional and requires explicit administrative activation (never auto-enabled upon license activation).
+
+### π Zero-Knowledge OpenPGP Data Encryption at Rest
+- **Public-Key Cryptography**: Enterprise SQL payloads (`event_data`) can be encrypted at rest using the server's X.509 RSA-2048 certificate / OpenPGP public key via AES-256-GCM symmetric session keys and RSA-OAEP key encapsulation.
+- **Zero-Knowledge on Database Host**: External database administrators or compromised SQL servers cannot read raw telemetry payloads without the private key located on the LOGAR Server Hub.
+- **Explicit Opt-In Security Model**: Payload encryption is strictly optional and configurable per compliance requirements.
+
+### π Dynamic Licensing Introspection & Clean Dashboard WebUI
+- **Modular Capability Introspection**: PKI X.509 extension OID `1.3.6.1.4.1.58888.1.3` and persistent license records are dynamically parsed to expose active modules (`enterprise_db`, etc.) in a dedicated card on the **π Sub-CA & Licensing** tab.
+- **Distraction-Free Tab Navigation**: Cleaned all tab headers to remove redundant item counts and visual badges for a streamlined administrative interface.
+- **Graceful Feature Locking**: Unlicensed enterprise features remain visible but gracefully disabled in the WebUI and rejected by backend API validation.
+
+### π Comprehensive Administrator Guide & Expanded Test Suite
+- **Administrator & Operations Guide**: Published comprehensive 11-chapter guide in [`docs/ADMIN_GUIDE.md`](docs/ADMIN_GUIDE.md) and [`wiki/ADMIN_GUIDE.md`](wiki/ADMIN_GUIDE.md) covering deployment, database switching, queue tuning, zero-knowledge crypto, forwarders, Hermes AI, 2FA, and troubleshooting.
+- **Automated Unit & Integration Tests**: Expanded test suite to **51 automated tests** covering dynamic licensing, WebUI rendering, opt-in isolation, database failovers, and mTLS pipelines.
+
+---
+
## [v0.3.4.2] - 2026-09-30
### π Exclusive Hardware Host-Binding & Reassignment Controls
diff --git a/docs/ADMIN_GUIDE.md b/docs/ADMIN_GUIDE.md
new file mode 100644
index 0000000..f579ad0
--- /dev/null
+++ b/docs/ADMIN_GUIDE.md
@@ -0,0 +1,369 @@
+# LOGAR Administrator & Operations Guide
+### *Complete Operations Manual for Fleet Hub Administration, Database Engines, PKI Licensing & AI Provisioning*
+
+---
+
+## Table of Contents
+
+1. [Executive Summary & System Architecture](#1-executive-summary--system-architecture)
+2. [Database Storage Engine Management](#2-database-storage-engine-management)
+ - [Local SQLite 3 (WAL Mode)](#local-sqlite-3-wal-mode)
+ - [External PostgreSQL Enterprise Backend](#external-postgresql-enterprise-backend)
+ - [Automated SQLite to PostgreSQL Migration](#automated-sqlite-to-postgresql-migration)
+3. [Telemetry Ingestion Cache & Buffer Tuning](#3-telemetry-ingestion-cache--buffer-tuning)
+ - [Ingestion Modes: Direct Write vs In-Memory Queue Buffer](#ingestion-modes-direct-write-vs-in-memory-queue-buffer)
+ - [Tuning Parameters & Metrics](#tuning-parameters--metrics)
+ - [Manual Flush & Buffer Monitoring](#manual-flush--buffer-monitoring)
+4. [Zero-Knowledge OpenPGP Data Encryption at Rest](#4-zero-knowledge-openpgp-data-encryption-at-rest)
+ - [Encryption Mechanism](#encryption-mechanism)
+ - [Transparent Authorized Decryption](#transparent-authorized-decryption)
+5. [Subordinate CA & Dynamic PKI Licensing](#5-subordinate-ca--dynamic-pki-licensing)
+ - [Hierarchical PKI & Custom X.509 OIDs](#hierarchical-pki--custom-x509-oids)
+ - [Licensed Feature Capabilities (`enterprise_db`)](#licensed-feature-capabilities-enterprise_db)
+ - [Importing `.lic` Activation Packages](#importing-lic-activation-packages)
+ - [Automated mTLS License Renewal](#automated-mtls-license-renewal)
+6. [Fleet Forwarder Management & Seat Provisioning](#6-fleet-forwarder-management--seat-provisioning)
+ - [Zero-Touch Linux Deployment](#zero-touch-linux-deployment)
+ - [Windows Edge Client Deployment](#windows-edge-client-deployment)
+ - [Seat Lifecycle: Approve, Revoke, Delete](#seat-lifecycle-approve-revoke-delete)
+7. [Hermes AI Agent Integration](#7-hermes-ai-agent-integration)
+ - [Dedicated Bearer Tokens](#dedicated-bearer-tokens)
+ - [12-Hour Temporal Persistence Anomaly Stream](#12-hour-temporal-persistence-anomaly-stream)
+8. [Security, Authentication & 2FA](#8-security-authentication--2fa)
+ - [Password Policies & PBKDF2 Hashing](#password-policies--pbkdf2-hashing)
+ - [Time-Based One-Time Password (TOTP 2FA)](#time-based-one-time-password-totp-2fa)
+ - [Sliding Window IP Rate Limiting](#sliding-window-ip-rate-limiting)
+9. [Configuration Reference & CLI Flags](#9-configuration-reference--cli-flags)
+10. [REST API Reference](#10-rest-api-reference)
+11. [Operational Runbook & Troubleshooting](#11-operational-runbook--troubleshooting)
+
+---
+
+## 1. Executive Summary & System Architecture
+
+LOGAR is a centralized log aggregation, normalization, and provisioning system designed for enterprise server fleets. It connects heterogeneous edge nodes (Windows and Linux) with a central server hub over **Mutual TLS 1.3 (mTLS)**, normalizing incoming events and presenting structured anomaly intelligence to **Hermes AI**.
+
+### Core Network Architecture
+
+```mermaid
+graph TD
+ subgraph MasterAuthority [Master License Authority]
+ ROOT_CA[Master Root CA]
+ AUTH_API[WebSocket Licensing Hub
logar.eibl.tech]
+ end
+
+ subgraph Hub [LOGAR Server Hub]
+ SUB_CA[Subordinate CA & PKI Engine]
+ INGEST_QUEUE[IngestQueueManager
In-Memory RAM Buffer]
+ STORAGE_ROUTER[Storage Engine Router]
+ SQLITE[(Local SQLite 3 WAL)]
+ POSTGRES[(External PostgreSQL Cluster)]
+ TEMP_ENG[12h Temporal Persistence Engine]
+ HERMES_API[Hermes REST & WebUI API
Port 8443]
+ MTLS_SOCKET[mTLS 1.3 Socket Listener
Port 9443]
+
+ MTLS_SOCKET --> INGEST_QUEUE
+ INGEST_QUEUE --> STORAGE_ROUTER
+ STORAGE_ROUTER --> SQLITE
+ STORAGE_ROUTER --> POSTGRES
+ STORAGE_ROUTER --> TEMP_ENG
+ TEMP_ENG --> HERMES_API
+ end
+
+ subgraph EdgeNodes [Fleet Edge Forwarders]
+ WIN_NODE[Windows Forwarder
Win_Client.exe]
+ LIN_NODE[Linux Forwarder
Linux_Client.bin]
+ end
+
+ subgraph AI [Hermes AI Analysis Layer]
+ HERMES_AGENT[Hermes AI Agent]
+ end
+
+ ROOT_CA -->|Signs Sub-CA Cert| SUB_CA
+ AUTH_API <==>|Live mTLS Renewal| SUB_CA
+
+ WIN_NODE ==>|1. Auto-Enrollment / mTLS Ingest| MTLS_SOCKET
+ LIN_NODE ==>|1. Auto-Enrollment / mTLS Ingest| MTLS_SOCKET
+
+ HERMES_API ==>|GET /api/hermes/report| HERMES_AGENT
+```
+
+---
+
+## 2. Database Storage Engine Management
+
+LOGAR supports dual storage backends: an embedded **Local SQLite 3 (WAL Mode)** engine and an **External PostgreSQL Database Server** for enterprise clustering.
+
+### Local SQLite 3 (WAL Mode)
+- **Status**: Standard Default (Included out of the box, zero configuration required).
+- **Optimization**: Operates with Write-Ahead Logging (`PRAGMA journal_mode=WAL;`), asynchronous normal synchronization (`PRAGMA synchronous=NORMAL;`), and memory-mapped I/O (`PRAGMA mmap_size=268435456;`).
+- **File Location**: Configurable via `db_path` in `server_config.json` (defaults to `logar_state.db`).
+
+### External PostgreSQL Enterprise Backend
+- **Requirement**: Unlocked via the `enterprise_db` license capability.
+- **Benefits**: Enables horizontal database scalability, clustering, multi-node replication, and centralized enterprise backup policies.
+- **Connection Parameters**:
+ - **Host / IP**: Database hostname or IP address.
+ - **Port**: Default `5432`.
+ - **Database**: Target schema/database name (default `logar`).
+ - **Username / Password**: Authentication credentials.
+ - **SSL Mode**: Supports `prefer`, `require`, `verify-ca`, `verify-full`, `disable`, and `allow`.
+ - **Connect Timeout**: Timeout in seconds (default `5`s).
+ - **Connection Pool Size**: Maximum pooled persistent connections (default `10`).
+
+### Automated SQLite to PostgreSQL Migration
+Administrators can migrate all historical logs, runs, active issues, seat allocations, users, and tokens from SQLite to PostgreSQL directly in the WebUI (`πΎ DB Engine` -> `π Migrate SQLite Data to PostgreSQL`) or via API (`POST /api/db/migrate-to-postgres`):
+1. Flushes any in-memory telemetry buffers to SQLite.
+2. Connects to PostgreSQL and verifies/initializes the schema.
+3. Automatically transfers records table-by-table with validation.
+4. Returns a detailed count of all migrated records.
+
+---
+
+## 3. Telemetry Ingestion Cache & Buffer Tuning
+
+### Ingestion Modes: Direct Write vs In-Memory Queue Buffer
+
+| Feature | β‘ Immediate Direct Write | π In-Memory Queue Buffer (`enterprise_db`) |
+| :--- | :--- | :--- |
+| **Ingress Latency** | Low latency, immediate DB commit | Microsecond ingestion, non-blocking |
+| **Throughput** | Up to 1,500 events/sec | Up to 50,000+ events/sec |
+| **Disk I/O** | Continuous write cycles | Atomic batch flushing |
+| **License** | Standard Community Edition | Enterprise License (`enterprise_db`) |
+
+### Tuning Parameters & Metrics
+When **In-Memory Queue Buffer** is enabled, administrators can tune the buffer engine:
+- **Flush Interval (seconds)**: Maximum elapsed time before buffered anomalies are written to storage (e.g. `2.0`s).
+- **Batch Size Threshold**: Number of buffered events that triggers an immediate atomic flush (e.g. `100` events).
+- **Max Buffer Capacity**: Upper ceiling of buffered items in memory (e.g. `50,000` events) to protect system RAM under heavy load.
+
+### Manual Flush & Buffer Monitoring
+- **Live Monitoring**: The KPI card displays live buffer size, total events ingested, total flushed, and average flush latency.
+- **Manual Trigger**: Click **`π Flush Buffer Now`** or call `POST /api/db/flush-buffer` to force an immediate buffer drain.
+
+---
+
+## 4. Zero-Knowledge OpenPGP Data Encryption at Rest
+
+### Encryption Mechanism
+When **Data Encryption at Rest** is enabled (`encrypt_at_rest: true`):
+- All sensitive log payloads, anomaly messages, and raw traces are encrypted with the server's OpenPGP public key before writing to the database table (`active_issues.message`).
+- Remote database administrators or third-party database hosting providers only see armored OpenPGP ciphertext (`-----BEGIN PGP MESSAGE-----`).
+
+### Transparent Authorized Decryption
+- The central LOGAR hub instance holds the private OpenPGP key in protected memory.
+- When authenticated administrators access the WebUI or when authorized Hermes AI instances query `/api/hermes/report`, the server transparently decrypts records on-the-fly.
+
+---
+
+## 5. Subordinate CA & Dynamic PKI Licensing
+
+LOGAR utilizes a hierarchical Public Key Infrastructure (PKI) for cryptographic client identity and license seat enforcement.
+
+### Hierarchical PKI & Custom X.509 OIDs
+The Master Authority (`logar.eibl.tech`) signs the hub's Subordinate CA certificate (`certs/ca.crt`), embedding custom ASN.1 OIDs:
+- **`1.3.6.1.4.1.58888.1.1` (Seat Quota)**: Encodes the authorized edge client seat capacity (e.g. `25` seats).
+- **`1.3.6.1.4.1.58888.1.2` (Master Authority URL)**: Identifies the upstream licensing authority.
+- **`1.3.6.1.4.1.58888.1.3` (Feature Capabilities)**: Comma-delimited list of granted features (e.g. `enterprise_db,ai_heuristics`).
+
+### Licensed Feature Capabilities (`enterprise_db`)
+The **π Sub-CA & Licensing** tab displays all active licensed features:
+- **`enterprise_db`**: Authorizes external PostgreSQL database pooling, high-throughput in-memory RAM buffering, and OpenPGP data-at-rest encryption.
+
+### Importing `.lic` Activation Packages
+1. In the WebUI, navigate to **π Sub-CA & Licensing** and click **`π₯ Import License (.lic)`**.
+2. Select your `.lic` bundle or paste the JSON package.
+3. The server immediately reloads the PKI trust chain and hot-reloads the active mTLS `SSLContext` without downtime.
+
+### Automated mTLS License Renewal
+- Click **`π Sync & Renew via mTLS`** in the WebUI or run:
+ ```bash
+ python src/Server.py --sync-license
+ ```
+- The hub connects to `logar.eibl.tech` over mTLS, sends its current seat utilization, and retrieves an updated signed CA certificate.
+
+---
+
+## 6. Fleet Forwarder Management & Seat Provisioning
+
+### Zero-Touch Linux Deployment
+Run the automated single-line installer on target Linux servers:
+```bash
+sudo ./compilation/install_linux_client.sh "http://:8443" ""
+```
+- Automatically generates a 2048-bit RSA client keypair.
+- Enrolls with the hub and receives a signed client certificate.
+- Deploys and starts the `logar-client.service` systemd unit.
+
+### Windows Edge Client Deployment
+1. Download and run `LOGAR-Client-Setup.exe` on the Windows host.
+2. In the Server WebUI, click **`π₯ Export Client Profile`** and download `client_config.json`.
+3. Place `client_config.json` into `C:\Program Files\LOGAR\client_config.json`.
+4. The `LOGAR_Client` service automatically boots and connects via mTLS.
+
+### Seat Lifecycle: Approve, Revoke, Delete
+In the **π» Fleet Forwarders** tab:
+- **Revoke**: Temporarily blocks the node at the TLS handshake level (`ssl.CERT_REQUIRED`).
+- **Approve**: Re-activates a revoked node and restores telemetry ingestion.
+- **Remove**: Permanently deletes the client record and immediately frees the leased seat quota.
+
+---
+
+## 7. Hermes AI Agent Integration
+
+### Dedicated Bearer Tokens
+1. Navigate to **π€ Hermes AI & Tokens** in the WebUI.
+2. Enter a descriptive token name (e.g. `Hermes-Autonomous-SecOps`) and click **`Generate Token`**.
+3. Copy the Bearer token for Hermes agent configuration.
+
+### 12-Hour Temporal Persistence Anomaly Stream
+Hermes queries the real-time anomaly stream:
+```bash
+curl -H "Authorization: Bearer hermes_xxxxxxxxxxxx" http://:8443/api/hermes/report
+```
+
+#### JSON Telemetry Format:
+```json
+[
+ {
+ "fingerprint": "corp-dc:srv-db-01:postgres_wal_checkpoint_delay",
+ "site": "corp-dc",
+ "server": "srv-db-01",
+ "signature": "postgres_wal_checkpoint_delay",
+ "severity": "WARNING",
+ "message": "WAL checkpoint write duration exceeded 30000ms threshold",
+ "os_type": "linux",
+ "first_seen": "2026-09-30 14:10:00",
+ "last_seen": "2026-09-30 17:42:15",
+ "consecutive_runs": 4,
+ "evaluation_window": "12h",
+ "verified": true,
+ "status": "VERIFIED"
+ }
+]
+```
+
+---
+
+## 8. Security, Authentication & 2FA
+
+### Password Policies & PBKDF2 Hashing
+- User passwords are protected using PBKDF2-HMAC-SHA256 with 100,000 iterations and 16-byte random salts.
+- Change admin credentials via the user avatar menu -> **π Change Password**.
+
+### Time-Based One-Time Password (TOTP 2FA)
+- Standard RFC 6238 TOTP with standard 30-second drift windows.
+- Configure via avatar menu -> **π‘οΈ Two-Factor Auth (2FA)**.
+- Compatible with Google Authenticator, Authy, 1Password, and Bitwarden.
+
+### Sliding Window IP Rate Limiting
+- **Brute-Force Protection**: Enforces rate limiting on `/login` and `/api/client/enroll`.
+- Excess failed attempts trigger automatic IP blocking with sliding exponential backoff.
+
+---
+
+## 9. Configuration Reference & CLI Flags
+
+### `server_config.json` Specification
+
+```json
+{
+ "server_name": "LOGAR-Cloud-Hub",
+ "tcp_host": "0.0.0.0",
+ "tcp_port": 9443,
+ "hermes_host": "0.0.0.0",
+ "hermes_port": 8443,
+ "admin_user": "admin",
+ "enrollment_secret": "9a7f8e...4b",
+ "max_seats": 25,
+ "license_status": "active",
+ "license_server_url": "https://logar.eibl.tech",
+ "cert_dir": "certs",
+ "tls_enabled": true,
+ "db_path": "logar_state.db",
+ "storage_engine": "sqlite",
+ "cache_mode": "direct",
+ "flush_interval": 2.0,
+ "batch_size": 100,
+ "max_queue": 50000,
+ "encrypt_at_rest": false,
+ "server_fingerprint": "6FF5BE81...",
+ "public_key": "-----BEGIN PGP PUBLIC KEY BLOCK-----\n...",
+ "private_key": "-----BEGIN PGP PRIVATE KEY BLOCK-----\n..."
+}
+```
+
+### CLI Arguments
+
+| Flag | Description |
+| :--- | :--- |
+| `--config ` | Path to server configuration JSON file |
+| `--create-client-config` | Exports a client config bundle and exits |
+| `--client-out ` | Destination path for exported client configuration |
+| `--server-host ` | Embedded target host for exported client configuration |
+| `--server-port ` | Embedded target port for exported client configuration |
+| `--export-lic ` | Exports a `.lic` CSR activation request package |
+| `--import-lic ` | Imports and activates a signed `.lic` license package |
+| `--sync-license` | Connects to master authority to renew certificate & seats |
+
+---
+
+## 10. REST API Reference
+
+| Method | Endpoint | Auth | Description |
+| :--- | :--- | :--- | :--- |
+| `GET` | `/health` | None | Health check, server name, and TLS status |
+| `POST` | `/api/client/enroll` | Secret | Edge forwarder mTLS enrollment & certificate issuance |
+| `GET` | `/api/clients` | Admin | List registered forwarders, activity times, and seat quota |
+| `POST` | `/api/clients/approve` | Admin | Reactivate / approve an enrolled forwarder seat |
+| `POST` | `/api/clients/revoke` | Admin | Revoke an enrolled forwarder seat |
+| `POST` | `/api/clients/delete` | Admin | Remove forwarder record and permanently free seat |
+| `GET` | `/api/hermes/report` | Hermes/Admin | Stream verified anomalies within 12h temporal window |
+| `POST` | `/api/hermes/tokens/create` | Admin | Generate a named Bearer token for Hermes AI |
+| `POST` | `/api/hermes/tokens/revoke` | Admin | Revoke an existing Hermes Bearer token |
+| `GET` | `/api/db/stats` | Admin | Telemetry buffer stats, queue metrics, and storage info |
+| `POST` | `/api/db/flush-buffer` | Admin | Force immediate drain and write of buffered telemetry |
+| `POST` | `/api/db/test-connection` | Admin | Test external PostgreSQL connectivity (`enterprise_db`) |
+| `POST` | `/api/db/switch-backend` | Admin | Switch backend between SQLite and PostgreSQL (`enterprise_db`) |
+| `POST` | `/api/db/config` | Admin | Persist DB engine, cache mode, and encryption settings |
+| `POST` | `/api/db/migrate-to-postgres` | Admin | Migrate SQLite tables to PostgreSQL (`enterprise_db`) |
+| `GET` | `/api/license/status` | Admin | Subordinate CA status, seat quota, and licensed features |
+| `POST` | `/api/license/import` | Admin | Import `.lic` bundle or signed CA PEM |
+| `POST` | `/api/license/sync` | Admin | Sync license seats with master authority over mTLS |
+
+---
+
+## 11. Operational Runbook & Troubleshooting
+
+### Diagnostic Checklist
+
+1. **Verify Hub Service Status**:
+ ```bash
+ # Linux
+ sudo systemctl status logar-server.service
+ # Windows PowerShell
+ Get-Service LOGAR_Server
+ ```
+2. **Check Health Endpoint**:
+ ```bash
+ curl http://localhost:8443/health
+ ```
+3. **Inspect Active Anomaly Telemetry**:
+ ```bash
+ curl -H "Authorization: Bearer " http://localhost:8443/api/hermes/report
+ ```
+4. **Certificate Validity Check**:
+ ```bash
+ openssl x509 -in certs/ca.crt -text -noout | grep -A 2 "Validity"
+ ```
+
+### Common Issues & Remediation
+
+- **Issue: Forwarder rejected with `Connection Refused` or `TLS Handshake Failure`**:
+ - Ensure port `9443` is reachable through host and cloud firewalls.
+ - Verify edge node clock synchronization (NTP) with the server hub.
+ - Confirm the client certificate has not been revoked in the **Fleet Forwarders** tab.
+- **Issue: `403 Forbidden` on PostgreSQL or Buffering settings**:
+ - The `enterprise_db` feature capability is required. Verify your license in **π Sub-CA & Licensing**.
+- **Issue: Rate limit lock on admin login**:
+ - Wait 60 seconds for the sliding attempt window to expire, or authenticate via an existing active session.
diff --git a/tests/test_server.py b/tests/test_server.py
index 5da9457..a448b97 100644
--- a/tests/test_server.py
+++ b/tests/test_server.py
@@ -778,6 +778,110 @@ class TestServerComponent(unittest.TestCase):
self.assertTrue(info["encrypt_at_rest"])
self.assertEqual(info["flush_interval"], 4.0)
+ def test_active_licensed_features_helper(self):
+ """Tests helper function to extract active licensed capabilities from DB and certificates."""
+ Server.init_db(self.test_db)
+ Server.SERVER_STATE["ca_cert_pem"] = ""
+ Server.SERVER_STATE["config"] = {"db_path": self.test_db, "cert_dir": "non_existent_test_certs"}
+
+ # 1. Unlicensed state
+ features_unlicensed = Server.get_active_licensed_features(db_path=self.test_db)
+ self.assertEqual(features_unlicensed, [])
+ self.assertFalse(Server.is_feature_licensed("enterprise_db", db_path=self.test_db))
+
+ # 2. Add features via JSON string in DB
+ conn = sqlite3.connect(self.test_db)
+ conn.execute("UPDATE license_config SET features = ? WHERE id = 1", (json.dumps(["enterprise_db", "ai_heuristics"]),))
+ conn.commit()
+ conn.close()
+
+ features_licensed = Server.get_active_licensed_features(db_path=self.test_db)
+ self.assertEqual(features_licensed, ["ai_heuristics", "enterprise_db"])
+ self.assertTrue(Server.is_feature_licensed("enterprise_db", db_path=self.test_db))
+ self.assertTrue(Server.is_feature_licensed("ai_heuristics", db_path=self.test_db))
+ self.assertFalse(Server.is_feature_licensed("non_existent_feature", db_path=self.test_db))
+
+ # 3. Verify get_license_summary includes features list
+ summary = Server.get_license_summary()
+ self.assertIn("features", summary)
+ self.assertIn("enterprise_db", summary["features"])
+
+ def test_webui_tab_rendering_and_feature_cards(self):
+ """Tests WebUI HTML generation for clean tab buttons and feature cards in PKI tab."""
+ Server.init_db(self.test_db)
+ Server.SERVER_STATE["config"] = {
+ "db_path": self.test_db,
+ "cert_dir": "certs",
+ "tcp_port": 9443,
+ "hermes_port": 8443,
+ "server_name": "Test-Hub"
+ }
+
+ # 1. Render WebUI in standard / unlicensed mode
+ resp = Server.serve_webui(request=None)
+ html_content = resp.body.decode("utf-8")
+
+ # Verify clean tab buttons without number suffixes
+ self.assertIn('>π» Fleet Forwarders', html_content)
+ self.assertIn('>π€ Hermes AI & Tokens', html_content)
+ self.assertIn('>π Verified Telemetry', html_content)
+ self.assertIn('>π Sub-CA & Licensing', html_content)
+ self.assertIn('>πΎ DB Engine', html_content)
+ self.assertNotIn('π’ UNLOCKED', html_content)
+ self.assertNotIn('Fleet Forwarders (', html_content)
+
+ # Verify Licensed Capabilities card is present
+ self.assertIn('Licensed Capabilities & Feature Modules', html_content)
+ self.assertIn('Standard Community Edition is running', html_content)
+
+ # 2. Render WebUI with enterprise_db unlocked
+ conn = sqlite3.connect(self.test_db)
+ conn.execute("UPDATE license_config SET features = ? WHERE id = 1", (json.dumps(["enterprise_db"]),))
+ conn.commit()
+ conn.close()
+
+ resp_ent = Server.serve_webui(request=None)
+ html_ent = resp_ent.body.decode("utf-8")
+ self.assertIn('enterprise_db', html_ent)
+ self.assertIn('Enterprise Database & High-Throughput Engine', html_ent)
+ self.assertIn('>πΎ DB Engine', html_ent)
+ self.assertNotIn('π’ UNLOCKED', html_ent)
+
+ def test_explicit_opt_in_guarantee(self):
+ """Tests that licensing does NOT automatically turn on encryption or buffering without explicit admin setting."""
+ Server.init_db(self.test_db)
+ priv_armored, pub_armored, fp = Server.generate_server_keypair("test-opt-in-node")
+ priv_key, _ = pgpy.PGPKey.from_blob(priv_armored)
+ pub_key, _ = pgpy.PGPKey.from_blob(pub_armored)
+
+ Server.SERVER_STATE["config"] = {
+ "db_path": self.test_db,
+ "cert_dir": "certs",
+ "storage_engine": "sqlite",
+ "cache_mode": "direct",
+ "encrypt_at_rest": False,
+ "private_key": priv_armored,
+ "public_key": pub_armored,
+ "server_fingerprint": fp
+ }
+ Server.SERVER_STATE["private_key_obj"] = priv_key
+ Server.SERVER_STATE["public_key_obj"] = pub_key
+
+ # Unlock enterprise license
+ conn = sqlite3.connect(self.test_db)
+ conn.execute("UPDATE license_config SET features = ? WHERE id = 1", (json.dumps(["enterprise_db"]),))
+ conn.commit()
+ conn.close()
+
+ # License is active, but config has encrypt_at_rest=False -> plaintext storage
+ raw_msg = "Sample operational log event"
+ result_msg = Server.encrypt_field_for_storage(raw_msg)
+ self.assertEqual(result_msg, raw_msg)
+ self.assertFalse(result_msg.startswith("-----BEGIN PGP MESSAGE-----"))
+
+ # Ingestion cache mode is direct
+ self.assertEqual(Server.SERVER_STATE["config"]["cache_mode"], "direct")
+
if __name__ == "__main__":
unittest.main()
diff --git a/wiki/ADMIN_GUIDE.md b/wiki/ADMIN_GUIDE.md
new file mode 100644
index 0000000..f579ad0
--- /dev/null
+++ b/wiki/ADMIN_GUIDE.md
@@ -0,0 +1,369 @@
+# LOGAR Administrator & Operations Guide
+### *Complete Operations Manual for Fleet Hub Administration, Database Engines, PKI Licensing & AI Provisioning*
+
+---
+
+## Table of Contents
+
+1. [Executive Summary & System Architecture](#1-executive-summary--system-architecture)
+2. [Database Storage Engine Management](#2-database-storage-engine-management)
+ - [Local SQLite 3 (WAL Mode)](#local-sqlite-3-wal-mode)
+ - [External PostgreSQL Enterprise Backend](#external-postgresql-enterprise-backend)
+ - [Automated SQLite to PostgreSQL Migration](#automated-sqlite-to-postgresql-migration)
+3. [Telemetry Ingestion Cache & Buffer Tuning](#3-telemetry-ingestion-cache--buffer-tuning)
+ - [Ingestion Modes: Direct Write vs In-Memory Queue Buffer](#ingestion-modes-direct-write-vs-in-memory-queue-buffer)
+ - [Tuning Parameters & Metrics](#tuning-parameters--metrics)
+ - [Manual Flush & Buffer Monitoring](#manual-flush--buffer-monitoring)
+4. [Zero-Knowledge OpenPGP Data Encryption at Rest](#4-zero-knowledge-openpgp-data-encryption-at-rest)
+ - [Encryption Mechanism](#encryption-mechanism)
+ - [Transparent Authorized Decryption](#transparent-authorized-decryption)
+5. [Subordinate CA & Dynamic PKI Licensing](#5-subordinate-ca--dynamic-pki-licensing)
+ - [Hierarchical PKI & Custom X.509 OIDs](#hierarchical-pki--custom-x509-oids)
+ - [Licensed Feature Capabilities (`enterprise_db`)](#licensed-feature-capabilities-enterprise_db)
+ - [Importing `.lic` Activation Packages](#importing-lic-activation-packages)
+ - [Automated mTLS License Renewal](#automated-mtls-license-renewal)
+6. [Fleet Forwarder Management & Seat Provisioning](#6-fleet-forwarder-management--seat-provisioning)
+ - [Zero-Touch Linux Deployment](#zero-touch-linux-deployment)
+ - [Windows Edge Client Deployment](#windows-edge-client-deployment)
+ - [Seat Lifecycle: Approve, Revoke, Delete](#seat-lifecycle-approve-revoke-delete)
+7. [Hermes AI Agent Integration](#7-hermes-ai-agent-integration)
+ - [Dedicated Bearer Tokens](#dedicated-bearer-tokens)
+ - [12-Hour Temporal Persistence Anomaly Stream](#12-hour-temporal-persistence-anomaly-stream)
+8. [Security, Authentication & 2FA](#8-security-authentication--2fa)
+ - [Password Policies & PBKDF2 Hashing](#password-policies--pbkdf2-hashing)
+ - [Time-Based One-Time Password (TOTP 2FA)](#time-based-one-time-password-totp-2fa)
+ - [Sliding Window IP Rate Limiting](#sliding-window-ip-rate-limiting)
+9. [Configuration Reference & CLI Flags](#9-configuration-reference--cli-flags)
+10. [REST API Reference](#10-rest-api-reference)
+11. [Operational Runbook & Troubleshooting](#11-operational-runbook--troubleshooting)
+
+---
+
+## 1. Executive Summary & System Architecture
+
+LOGAR is a centralized log aggregation, normalization, and provisioning system designed for enterprise server fleets. It connects heterogeneous edge nodes (Windows and Linux) with a central server hub over **Mutual TLS 1.3 (mTLS)**, normalizing incoming events and presenting structured anomaly intelligence to **Hermes AI**.
+
+### Core Network Architecture
+
+```mermaid
+graph TD
+ subgraph MasterAuthority [Master License Authority]
+ ROOT_CA[Master Root CA]
+ AUTH_API[WebSocket Licensing Hub
logar.eibl.tech]
+ end
+
+ subgraph Hub [LOGAR Server Hub]
+ SUB_CA[Subordinate CA & PKI Engine]
+ INGEST_QUEUE[IngestQueueManager
In-Memory RAM Buffer]
+ STORAGE_ROUTER[Storage Engine Router]
+ SQLITE[(Local SQLite 3 WAL)]
+ POSTGRES[(External PostgreSQL Cluster)]
+ TEMP_ENG[12h Temporal Persistence Engine]
+ HERMES_API[Hermes REST & WebUI API
Port 8443]
+ MTLS_SOCKET[mTLS 1.3 Socket Listener
Port 9443]
+
+ MTLS_SOCKET --> INGEST_QUEUE
+ INGEST_QUEUE --> STORAGE_ROUTER
+ STORAGE_ROUTER --> SQLITE
+ STORAGE_ROUTER --> POSTGRES
+ STORAGE_ROUTER --> TEMP_ENG
+ TEMP_ENG --> HERMES_API
+ end
+
+ subgraph EdgeNodes [Fleet Edge Forwarders]
+ WIN_NODE[Windows Forwarder
Win_Client.exe]
+ LIN_NODE[Linux Forwarder
Linux_Client.bin]
+ end
+
+ subgraph AI [Hermes AI Analysis Layer]
+ HERMES_AGENT[Hermes AI Agent]
+ end
+
+ ROOT_CA -->|Signs Sub-CA Cert| SUB_CA
+ AUTH_API <==>|Live mTLS Renewal| SUB_CA
+
+ WIN_NODE ==>|1. Auto-Enrollment / mTLS Ingest| MTLS_SOCKET
+ LIN_NODE ==>|1. Auto-Enrollment / mTLS Ingest| MTLS_SOCKET
+
+ HERMES_API ==>|GET /api/hermes/report| HERMES_AGENT
+```
+
+---
+
+## 2. Database Storage Engine Management
+
+LOGAR supports dual storage backends: an embedded **Local SQLite 3 (WAL Mode)** engine and an **External PostgreSQL Database Server** for enterprise clustering.
+
+### Local SQLite 3 (WAL Mode)
+- **Status**: Standard Default (Included out of the box, zero configuration required).
+- **Optimization**: Operates with Write-Ahead Logging (`PRAGMA journal_mode=WAL;`), asynchronous normal synchronization (`PRAGMA synchronous=NORMAL;`), and memory-mapped I/O (`PRAGMA mmap_size=268435456;`).
+- **File Location**: Configurable via `db_path` in `server_config.json` (defaults to `logar_state.db`).
+
+### External PostgreSQL Enterprise Backend
+- **Requirement**: Unlocked via the `enterprise_db` license capability.
+- **Benefits**: Enables horizontal database scalability, clustering, multi-node replication, and centralized enterprise backup policies.
+- **Connection Parameters**:
+ - **Host / IP**: Database hostname or IP address.
+ - **Port**: Default `5432`.
+ - **Database**: Target schema/database name (default `logar`).
+ - **Username / Password**: Authentication credentials.
+ - **SSL Mode**: Supports `prefer`, `require`, `verify-ca`, `verify-full`, `disable`, and `allow`.
+ - **Connect Timeout**: Timeout in seconds (default `5`s).
+ - **Connection Pool Size**: Maximum pooled persistent connections (default `10`).
+
+### Automated SQLite to PostgreSQL Migration
+Administrators can migrate all historical logs, runs, active issues, seat allocations, users, and tokens from SQLite to PostgreSQL directly in the WebUI (`πΎ DB Engine` -> `π Migrate SQLite Data to PostgreSQL`) or via API (`POST /api/db/migrate-to-postgres`):
+1. Flushes any in-memory telemetry buffers to SQLite.
+2. Connects to PostgreSQL and verifies/initializes the schema.
+3. Automatically transfers records table-by-table with validation.
+4. Returns a detailed count of all migrated records.
+
+---
+
+## 3. Telemetry Ingestion Cache & Buffer Tuning
+
+### Ingestion Modes: Direct Write vs In-Memory Queue Buffer
+
+| Feature | β‘ Immediate Direct Write | π In-Memory Queue Buffer (`enterprise_db`) |
+| :--- | :--- | :--- |
+| **Ingress Latency** | Low latency, immediate DB commit | Microsecond ingestion, non-blocking |
+| **Throughput** | Up to 1,500 events/sec | Up to 50,000+ events/sec |
+| **Disk I/O** | Continuous write cycles | Atomic batch flushing |
+| **License** | Standard Community Edition | Enterprise License (`enterprise_db`) |
+
+### Tuning Parameters & Metrics
+When **In-Memory Queue Buffer** is enabled, administrators can tune the buffer engine:
+- **Flush Interval (seconds)**: Maximum elapsed time before buffered anomalies are written to storage (e.g. `2.0`s).
+- **Batch Size Threshold**: Number of buffered events that triggers an immediate atomic flush (e.g. `100` events).
+- **Max Buffer Capacity**: Upper ceiling of buffered items in memory (e.g. `50,000` events) to protect system RAM under heavy load.
+
+### Manual Flush & Buffer Monitoring
+- **Live Monitoring**: The KPI card displays live buffer size, total events ingested, total flushed, and average flush latency.
+- **Manual Trigger**: Click **`π Flush Buffer Now`** or call `POST /api/db/flush-buffer` to force an immediate buffer drain.
+
+---
+
+## 4. Zero-Knowledge OpenPGP Data Encryption at Rest
+
+### Encryption Mechanism
+When **Data Encryption at Rest** is enabled (`encrypt_at_rest: true`):
+- All sensitive log payloads, anomaly messages, and raw traces are encrypted with the server's OpenPGP public key before writing to the database table (`active_issues.message`).
+- Remote database administrators or third-party database hosting providers only see armored OpenPGP ciphertext (`-----BEGIN PGP MESSAGE-----`).
+
+### Transparent Authorized Decryption
+- The central LOGAR hub instance holds the private OpenPGP key in protected memory.
+- When authenticated administrators access the WebUI or when authorized Hermes AI instances query `/api/hermes/report`, the server transparently decrypts records on-the-fly.
+
+---
+
+## 5. Subordinate CA & Dynamic PKI Licensing
+
+LOGAR utilizes a hierarchical Public Key Infrastructure (PKI) for cryptographic client identity and license seat enforcement.
+
+### Hierarchical PKI & Custom X.509 OIDs
+The Master Authority (`logar.eibl.tech`) signs the hub's Subordinate CA certificate (`certs/ca.crt`), embedding custom ASN.1 OIDs:
+- **`1.3.6.1.4.1.58888.1.1` (Seat Quota)**: Encodes the authorized edge client seat capacity (e.g. `25` seats).
+- **`1.3.6.1.4.1.58888.1.2` (Master Authority URL)**: Identifies the upstream licensing authority.
+- **`1.3.6.1.4.1.58888.1.3` (Feature Capabilities)**: Comma-delimited list of granted features (e.g. `enterprise_db,ai_heuristics`).
+
+### Licensed Feature Capabilities (`enterprise_db`)
+The **π Sub-CA & Licensing** tab displays all active licensed features:
+- **`enterprise_db`**: Authorizes external PostgreSQL database pooling, high-throughput in-memory RAM buffering, and OpenPGP data-at-rest encryption.
+
+### Importing `.lic` Activation Packages
+1. In the WebUI, navigate to **π Sub-CA & Licensing** and click **`π₯ Import License (.lic)`**.
+2. Select your `.lic` bundle or paste the JSON package.
+3. The server immediately reloads the PKI trust chain and hot-reloads the active mTLS `SSLContext` without downtime.
+
+### Automated mTLS License Renewal
+- Click **`π Sync & Renew via mTLS`** in the WebUI or run:
+ ```bash
+ python src/Server.py --sync-license
+ ```
+- The hub connects to `logar.eibl.tech` over mTLS, sends its current seat utilization, and retrieves an updated signed CA certificate.
+
+---
+
+## 6. Fleet Forwarder Management & Seat Provisioning
+
+### Zero-Touch Linux Deployment
+Run the automated single-line installer on target Linux servers:
+```bash
+sudo ./compilation/install_linux_client.sh "http://:8443" ""
+```
+- Automatically generates a 2048-bit RSA client keypair.
+- Enrolls with the hub and receives a signed client certificate.
+- Deploys and starts the `logar-client.service` systemd unit.
+
+### Windows Edge Client Deployment
+1. Download and run `LOGAR-Client-Setup.exe` on the Windows host.
+2. In the Server WebUI, click **`π₯ Export Client Profile`** and download `client_config.json`.
+3. Place `client_config.json` into `C:\Program Files\LOGAR\client_config.json`.
+4. The `LOGAR_Client` service automatically boots and connects via mTLS.
+
+### Seat Lifecycle: Approve, Revoke, Delete
+In the **π» Fleet Forwarders** tab:
+- **Revoke**: Temporarily blocks the node at the TLS handshake level (`ssl.CERT_REQUIRED`).
+- **Approve**: Re-activates a revoked node and restores telemetry ingestion.
+- **Remove**: Permanently deletes the client record and immediately frees the leased seat quota.
+
+---
+
+## 7. Hermes AI Agent Integration
+
+### Dedicated Bearer Tokens
+1. Navigate to **π€ Hermes AI & Tokens** in the WebUI.
+2. Enter a descriptive token name (e.g. `Hermes-Autonomous-SecOps`) and click **`Generate Token`**.
+3. Copy the Bearer token for Hermes agent configuration.
+
+### 12-Hour Temporal Persistence Anomaly Stream
+Hermes queries the real-time anomaly stream:
+```bash
+curl -H "Authorization: Bearer hermes_xxxxxxxxxxxx" http://:8443/api/hermes/report
+```
+
+#### JSON Telemetry Format:
+```json
+[
+ {
+ "fingerprint": "corp-dc:srv-db-01:postgres_wal_checkpoint_delay",
+ "site": "corp-dc",
+ "server": "srv-db-01",
+ "signature": "postgres_wal_checkpoint_delay",
+ "severity": "WARNING",
+ "message": "WAL checkpoint write duration exceeded 30000ms threshold",
+ "os_type": "linux",
+ "first_seen": "2026-09-30 14:10:00",
+ "last_seen": "2026-09-30 17:42:15",
+ "consecutive_runs": 4,
+ "evaluation_window": "12h",
+ "verified": true,
+ "status": "VERIFIED"
+ }
+]
+```
+
+---
+
+## 8. Security, Authentication & 2FA
+
+### Password Policies & PBKDF2 Hashing
+- User passwords are protected using PBKDF2-HMAC-SHA256 with 100,000 iterations and 16-byte random salts.
+- Change admin credentials via the user avatar menu -> **π Change Password**.
+
+### Time-Based One-Time Password (TOTP 2FA)
+- Standard RFC 6238 TOTP with standard 30-second drift windows.
+- Configure via avatar menu -> **π‘οΈ Two-Factor Auth (2FA)**.
+- Compatible with Google Authenticator, Authy, 1Password, and Bitwarden.
+
+### Sliding Window IP Rate Limiting
+- **Brute-Force Protection**: Enforces rate limiting on `/login` and `/api/client/enroll`.
+- Excess failed attempts trigger automatic IP blocking with sliding exponential backoff.
+
+---
+
+## 9. Configuration Reference & CLI Flags
+
+### `server_config.json` Specification
+
+```json
+{
+ "server_name": "LOGAR-Cloud-Hub",
+ "tcp_host": "0.0.0.0",
+ "tcp_port": 9443,
+ "hermes_host": "0.0.0.0",
+ "hermes_port": 8443,
+ "admin_user": "admin",
+ "enrollment_secret": "9a7f8e...4b",
+ "max_seats": 25,
+ "license_status": "active",
+ "license_server_url": "https://logar.eibl.tech",
+ "cert_dir": "certs",
+ "tls_enabled": true,
+ "db_path": "logar_state.db",
+ "storage_engine": "sqlite",
+ "cache_mode": "direct",
+ "flush_interval": 2.0,
+ "batch_size": 100,
+ "max_queue": 50000,
+ "encrypt_at_rest": false,
+ "server_fingerprint": "6FF5BE81...",
+ "public_key": "-----BEGIN PGP PUBLIC KEY BLOCK-----\n...",
+ "private_key": "-----BEGIN PGP PRIVATE KEY BLOCK-----\n..."
+}
+```
+
+### CLI Arguments
+
+| Flag | Description |
+| :--- | :--- |
+| `--config ` | Path to server configuration JSON file |
+| `--create-client-config` | Exports a client config bundle and exits |
+| `--client-out ` | Destination path for exported client configuration |
+| `--server-host ` | Embedded target host for exported client configuration |
+| `--server-port ` | Embedded target port for exported client configuration |
+| `--export-lic ` | Exports a `.lic` CSR activation request package |
+| `--import-lic ` | Imports and activates a signed `.lic` license package |
+| `--sync-license` | Connects to master authority to renew certificate & seats |
+
+---
+
+## 10. REST API Reference
+
+| Method | Endpoint | Auth | Description |
+| :--- | :--- | :--- | :--- |
+| `GET` | `/health` | None | Health check, server name, and TLS status |
+| `POST` | `/api/client/enroll` | Secret | Edge forwarder mTLS enrollment & certificate issuance |
+| `GET` | `/api/clients` | Admin | List registered forwarders, activity times, and seat quota |
+| `POST` | `/api/clients/approve` | Admin | Reactivate / approve an enrolled forwarder seat |
+| `POST` | `/api/clients/revoke` | Admin | Revoke an enrolled forwarder seat |
+| `POST` | `/api/clients/delete` | Admin | Remove forwarder record and permanently free seat |
+| `GET` | `/api/hermes/report` | Hermes/Admin | Stream verified anomalies within 12h temporal window |
+| `POST` | `/api/hermes/tokens/create` | Admin | Generate a named Bearer token for Hermes AI |
+| `POST` | `/api/hermes/tokens/revoke` | Admin | Revoke an existing Hermes Bearer token |
+| `GET` | `/api/db/stats` | Admin | Telemetry buffer stats, queue metrics, and storage info |
+| `POST` | `/api/db/flush-buffer` | Admin | Force immediate drain and write of buffered telemetry |
+| `POST` | `/api/db/test-connection` | Admin | Test external PostgreSQL connectivity (`enterprise_db`) |
+| `POST` | `/api/db/switch-backend` | Admin | Switch backend between SQLite and PostgreSQL (`enterprise_db`) |
+| `POST` | `/api/db/config` | Admin | Persist DB engine, cache mode, and encryption settings |
+| `POST` | `/api/db/migrate-to-postgres` | Admin | Migrate SQLite tables to PostgreSQL (`enterprise_db`) |
+| `GET` | `/api/license/status` | Admin | Subordinate CA status, seat quota, and licensed features |
+| `POST` | `/api/license/import` | Admin | Import `.lic` bundle or signed CA PEM |
+| `POST` | `/api/license/sync` | Admin | Sync license seats with master authority over mTLS |
+
+---
+
+## 11. Operational Runbook & Troubleshooting
+
+### Diagnostic Checklist
+
+1. **Verify Hub Service Status**:
+ ```bash
+ # Linux
+ sudo systemctl status logar-server.service
+ # Windows PowerShell
+ Get-Service LOGAR_Server
+ ```
+2. **Check Health Endpoint**:
+ ```bash
+ curl http://localhost:8443/health
+ ```
+3. **Inspect Active Anomaly Telemetry**:
+ ```bash
+ curl -H "Authorization: Bearer " http://localhost:8443/api/hermes/report
+ ```
+4. **Certificate Validity Check**:
+ ```bash
+ openssl x509 -in certs/ca.crt -text -noout | grep -A 2 "Validity"
+ ```
+
+### Common Issues & Remediation
+
+- **Issue: Forwarder rejected with `Connection Refused` or `TLS Handshake Failure`**:
+ - Ensure port `9443` is reachable through host and cloud firewalls.
+ - Verify edge node clock synchronization (NTP) with the server hub.
+ - Confirm the client certificate has not been revoked in the **Fleet Forwarders** tab.
+- **Issue: `403 Forbidden` on PostgreSQL or Buffering settings**:
+ - The `enterprise_db` feature capability is required. Verify your license in **π Sub-CA & Licensing**.
+- **Issue: Rate limit lock on admin login**:
+ - Wait 60 seconds for the sliding attempt window to expire, or authenticate via an existing active session.