Services
Engagement
A calm, audit-friendly plan

Share your environment + goals. We’ll propose a minimal baseline, then iterate module-by-module.

scan first backup-first rollback
Resources
Calm ops — fewer surprises, better visibility, cleaner history.
Bring your environment details — we’ll propose a minimal plan.
Contact →
Doragon Framework

Structured security for Linux server infrastructure

A modular CLI-first framework for hardening, diagnostics, reporting, and controlled operations across RHEL-like environments.

Interface
CLI-first
Target
Linux VPS
Posture
Audit-friendly
doragon.framework
Gold
Live command
$ sudo doragon status
Doragon Framework v1.0.5

Host: hitsukaya
Profile: gold

[OK]   SELinux: enforcing
[OK]   Firewall: active
[OK]   Fail2Ban: running
[OK]   Reports: enabled
Operational profile
Entry
Explicit CLI workflow
Core
Modular framework engine
Boundary
SELinux, firewall, Fail2Ban
Target
RHEL-like Linux VPS
Model
Structured
Output
Reviewable
Posture
Stable
Principles

Built for disciplined server operations

Doragon favors explicit control, smaller modules, and infrastructure that remains understandable under operational pressure.

01 — Purpose

Real infrastructure first

Built for Linux VPS and dedicated server operations, not dashboard-first abstraction layers.

02 — Approach

Modular and predictable

Small modules, explicit commands, and execution paths that remain inspectable in production.

03 — Posture

Security by architecture

Reduced attack surface, defined boundaries, and controlled operational defaults.

Framework scope

The core layer behind Doragon

Doragon Framework defines the operational layer for hardening, diagnostics, reporting, and controlled Linux VPS administration.

Target Linux VPS
Environment RHEL-like
Interface CLI-first
Posture Audit-friendly
01

Hardening

SSH boundaries, firewall policies, SELinux enforcement, and Fail2Ban protection for stable production systems.

03

Reporting

Readable summaries designed for audits, reviews, and operational visibility.

02

Diagnostics

Detect drift, weak signals, and inconsistencies before they become operational problems.

04

Operations

Explicit CLI workflows for controlled, repeatable server administration.

Tier profile

Doragon Framework — Gold

Gold defines a stronger operating posture for production VPS environments where control, visibility, and hardened defaults matter more than convenience.

Production-oriented baseline
01 / Posture

Security-first baseline

SELinux-aware, firewall-conscious, and Fail2Ban-friendly defaults designed for real production hosts.

02 / Clarity

Explicit and reviewable

Clear commands, modular outputs, and framework behavior that remains visible under operational pressure.

03 / Fit

Built for long-running hosts

Intended for VPS and server environments that need stable posture, predictable workflows, and operational continuity.

04 / Boundary

Not one-click automation

Gold favors discipline, reversibility, and explicit control over hidden orchestration layers.

CLI workflow

Operate with clarity

Doragon stays strongest when operators can inspect, run, diagnose, and review the system through explicit, readable commands.

Interface CLI-first
Output Audit-friendly
Model Explicit commands
Use Daily operations
doragon CLI
active
$ sudo doragon status
$ sudo doragon report
$ sudo doragon diagnose
$ sudo doragon firewall status
$ sudo doragon fail2ban status
$ sudo doragon sftp status
status

Overview of posture, health, and service visibility.

report

Readable output for audit, review, and follow-up.

diagnose

Detect drift, weak spots, and operational issues.

Core modules

Framework capabilities

Doragon keeps the root clean by splitting infrastructure logic into small, auditable modules. Each module handles a defined operational boundary.

Model Modular
Output Audit-friendly
Changes Reversible
Scope Linux VPS
Security layer

SSH

Maintain secure remote access posture for VPS administration.

Firewall

Review and manage network exposure boundaries and service access.

Policy layer

SELinux

Support enforced policy posture for production-aware systems.

Fail2Ban

Monitor jail posture, protection state, and suspicious activity response.

Runtime layer

Services

Inspect essential services and runtime health across the host.

SFTP

Keep file transfer access more controlled and operationally isolated.

Review layer

Reports

Generate readable summaries suitable for review and follow-up.

Diagnostics

Detect issues, weak posture, and misconfiguration with controlled checks.

Architecture

CLI entry point, framework core, real host interaction

Doragon keeps operational access simple for the administrator while framework logic stays modular, visible, and close to the host.

Execution flow
Entry
Operator / Admin

Commands are initiated through SSH or terminal access.

Interface
Doragon CLI

The CLI is the controlled entry point for status, report, diagnose, and module commands.

Core
Doragon Framework

Modules, checks, reports, helpers, firewall, SELinux, Fail2Ban, and SFTP logic.

Target
Linux VPS / Server Host

The framework interacts with services, policies, logs, and runtime state on the host.

Principle

Transparent execution

Doragon keeps the operational surface explicit. The CLI remains visible, and the framework avoids hidden orchestration layers.

Inputs

Real system state

Config files, service health, logs, host posture, and operator intent.

Outputs

Reviewable results

Status summaries, diagnostics, reports, and structured operational feedback.

Next step

Continue into baselines and control panel

Start with the framework core, then expand into hardened baseline profiles and observability workflows across the Doragon ecosystem.

HITSUKAYA