ENRUUK
Autonomous server defense

Managed server protection: observe it, limit the damage, restore trusted state, and prove the result

Server Warden should not ask a buyer to trust marketing.

Linux protectionRecovery ProofProtected vs UnprotectedRead-only audit

1. Two proofs instead of promises

Server Warden should not ask a buyer to trust marketing. Before purchase, a visitor can inspect their own server with a read-only audit and then watch the protection lifecycle in an interactive security lab.

1

Audit your server for free

45 read-only checks with no installation or changes. The script produces a local HTML/TXT report with risks and recommendations.

2

See the protection work

Security Lab runs controlled scenarios and shows protected vs unprotected behavior, timeline, recovery and independent proof.

2. A closed protection loop

OBSERVEstate and telemetry
DETECTunexpected change
CORRELATEcontext and evidence
CONTAINlimit damage
RECOVERrestore known-good
VERIFYprove the result
RECOVERED ≠ VERIFIED. A restart or rollback is not proof. VERIFIED is earned only after independent health, hash, listener, firewall, identity and scenario-specific checks.

3. Free server audit

The audit is the first persuasion loop. It is a one-shot read-only diagnostic, not the Server Warden agent.

Host baseline

OS release · kernel · uptime/load · disk usage · memory/swap

Exposure

Listening TCP sockets · public SSH exposure · Docker TCP API · database/service ports

Firewall

UFW · nftables · iptables

SSH & accounts

Failed-login signals · top source IPs · effective SSH config · UID 0 users · sudo/admin groups · authorized_keys permissions

nginx / web

nginx version · config test · suspicious log patterns and paths · server inventory · risky directives

Filesystem

Sensitive-path markers · world-writable project files · executables in temp directories

Persistence / systemd

SUID snapshot · cron · failed services · suspicious systemd Exec lines

Packages & processes

Update signal · fail2ban · top CPU processes · suspicious process indicators

Docker

Socket permissions · containers · privileged/network risk

Resilience / ops

Recent backups · backup freshness · Let’s Encrypt certificates · disk pressure

Report

Local HTML/TXT report · risk score · recommendations

4. Server Warden modules

Do not publish a crude “13/17 complete” counter. Show the real capability status: available now, infrastructure-dependent, in qualification, or dependent on customer endpoints. The product capability matrix should remain the source of truth.

AVAILABLE NOW

Core Platform

HS-CORE

Signed policy, module supervision, Action Broker, leases, approvals, kill switch, generation fencing.

AVAILABLE NOW

Integrity & Self-Heal

HS-INTEGRITY

File/config drift, one-byte and binary replacement, permission drift, persistence, safe repair and Recovery Proof.

AVAILABLE NOW

Network Defense

HS-NET

Unauthorized listeners, firewall/posture drift, network observation and controlled isolation.

AVAILABLE NOW

Identity Defense

HS-IDENTITY

Unauthorized accounts/admin, identity drift and privileged-state checks.

AVAILABLE NOW

Ransomware Shield

HS-RANSOM

Mass file rewrites, canaries, containment and recovery workflows.

AVAILABLE NOW

Egress / Exfiltration

HS-EGRESS

Unexpected egress and exfiltration signals; observe first, enforcement through network policy.

AVAILABLE NOW

Deception Fabric

HS-DECEPTION

Honeytokens and deception signals that should never appear in legitimate work.

AVAILABLE NOW

Hardening Posture

HS-POSTURE

Search-path and privileged-binary posture checks with evidence-based findings.

AVAILABLE NOW

Forensics / Time Machine

HS-FORENSICS

Timeline, replay, signed proof packs and final-state verification.

AVAILABLE NOW

Compliance Evidence

HS-COMPLIANCE

Evidence-to-control mapping; never presents a certification without evidence.

AVAILABLE NOW

Security Commander

HS-AI

Deterministic triage plus AI advisory; AI never gets an unrestricted privileged shell.

INFRA-DEPENDENT

Guardian Recovery

HS-GUARDIAN

Single-plane out-of-band recovery exists; multi-plane HA needs an independent second plane.

INFRA-DEPENDENT

Digital Twin

HS-TWIN

A/B counterfactual and twin graph are available; full isolated live proof needs dedicated lab infrastructure.

IN QUALIFICATION

Application Shield / Veil

HS-APPLICATION

Survival/bundle foundation exists; full App Shield is being completed.

IN QUALIFICATION

DDoS Reflex

HS-DDOS

Requires a dedicated load-generation and hardware qualification environment before public performance claims.

CUSTOMER ENDPOINT

Enterprise Integrations

HS-INTEGRATIONS

Local JSON/CEF and ingest foundations exist; live remote delivery depends on customer endpoints/credentials.

IN QUALIFICATION

Windows parity

WINDOWS

Linux is the qualified baseline today; Windows parity requires dedicated validation hosts.

5. Architecture

Customer / Internet / infrastructure
↓
Server Warden CommandPolicy · Event · Audit · Action Broker · Evidence
↓
Sentinelhost telemetry · detectors · permitted actions
Guardian Planeout-of-band recovery · rebuild
External / Integrationssite checks · SIEM export · evidence

Effectful actions pass through the Action Broker; detectors and AI do not receive a generic privileged shell. Security Commander assists with triage and explanation while deterministic protection continues without an LLM.

6. Security Lab

The public terminal is a strict allowlisted DSL, not an arbitrary browser shell. The strongest mode is Protected vs Unprotected: the same controlled activity is applied to identical environments.

ATTACKER / TEST
warden-demo> run firewall-drift --compare
00.000 policy changes
00.094 drift observed
MACHINE
Protected: RECOVERING
Unprotected: DRIFT REMAINS
Evidence: collecting
SERVER WARDEN
DETECTED
CORRELATED
RECOVERED
VERIFIED
Recovery Prooftimeline + evidence available

7. Getting started

  1. Optionally run the free audit and keep the report.
  2. Purchase one license per protected server/instance under the current commercial model.
  3. Install and enroll through the current customer-specific delivery flow; never publish permanent secrets in static docs.
  4. Create the baseline and verify heartbeat, policy version and active modules.
  5. Choose which conditions are detect-only, auto-contain, auto-recover or approval-gated.
  6. Operate through incidents, timeline, Recovery Proof and reports.

8. Current status

Available now on Linux: trusted core, integrity/self-heal, network, identity, ransomware, egress, deception, posture, forensics/proof, compliance evidence and Security Commander.

Infrastructure-dependent: multi-plane Guardian HA and evaluator-grade isolated Twin/LiveFire.

In qualification: full App Shield, DDoS Reflex, Windows parity and live remote enterprise connectors.

9. Price

Server Warden · 1 server

999 UAH/ month

Annual: 9,990 UAH. USD should remain an indicative dynamic reference only; settlement is in UAH.

10. Who it fits

Good fit

VPS and dedicated servers, production services and teams that need more than alerts: controlled containment, recovery and evidence.

Not a replacement for

Hardware/firmware security, provider-scale DDoS scrubbing, or capabilities the endpoint has no authority to perform. Those boundaries should be stated explicitly.

11. Frequently asked questions

Is the free server audit actually safe to run, or could it change anything on my server?

The free audit is read-only by design. It does not change firewall rules, does not ban IPs, does not edit nginx configuration, and does not upload anything without your explicit consent. It only collects the facts needed to produce your risk report.

How is Server Warden priced?

Pricing is per protected server, currently 999 UAH per month, or 9,990 UAH billed annually. Any USD figure shown elsewhere is an indicative reference only; billing itself settles in UAH.

How long does it take to go from the free audit to active protection?

After the audit, setup follows a customer-specific delivery flow: creating a baseline, verifying the first heartbeat and active modules, then choosing which conditions are detect-only, auto-contain, auto-recover or approval-gated before the service moves into daily operation.

Does Server Warden run fully automatically, or do I still need to manage anything myself?

The autonomous defense layer handles detection, correlation and Gatekeeper auto-ban decisions on its own, but you decide up front which actions are fully automatic and which require approval, and you receive readable reports and alerts rather than raw logs to interpret yourself.

Is Server Warden available for Windows servers?

The current core protection modules, including trusted core, integrity/self-heal, network, identity, ransomware, egress, deception, posture and forensics, are available now on Linux. Windows parity is in qualification and not yet generally available.

Facts first. Demonstration second. Decision last.