Perimeter Defense & Secure Remote Access

One Unified Partner to Protect & Scale Your Business.

Xoyan protects your infrastructure with perimeter firewall defense, isolated network segmentation, and secure remote access—integrated with Active Directory. Choose managed protection with ongoing updates and monitoring, or a self-managed deployment for full control.

Perimeter firewall with default-deny policy and network segmentation
3 secure remote-access VPN options (ZeroTier, OpenVPN, WireGuard)
Managed ongoing maintenance or verified self-managed deployment
16-pointacceptance test
3 VPNoptions
Managedor self-managed
xoyan-security :: policy status
[STATUS][POLICY]Firewall policy loaded: default-deny enforced
[STATUS][TUNNEL]VPN tunnel established: secure remote access active
[STATUS][NETWORK]Guest network isolated: lateral movement blocked
[STATUS][BACKUP]Backup completed: encrypted configuration archived
Firewall Matrix
Default Deny
Verification Matrix
16-Point Validated
Managed & Self-Managed SecurityPerimeter defense, VPN access, and digital growth

Request pipeline

Every request is scanned before it reaches the core.

From architecture planning to ongoing operations, every stage is structured, documented, and verified. Each hit on the net is a request that never got in.

  1. Telemetry Ingestion & PlanSignals from your network, cloud, and endpoints stream in through structured address schemes.
  2. Perimeter Firewall & Segment IsolationpfSense default-deny rules and isolated VLANs suppress lateral movement.
  3. Verified Remote Access & OperationsEncrypted ZeroTier, OpenVPN, or WireGuard tunnels validated via 16-point testing.
EXECUTION PIPELINE :: PLANNED
Documented ArchitecturePhase 1: Planning
⇄ Swipe horizontally to explore pipeline nodes
PlanScheme & roles
BuildFirewall & VLANs
ConnectSecure VPN
Verify16-point test
ManagedMonitor & patch
Self-managedFull control
MarketingGrow securely
Plan•Phase 1: Planning

Architecture & Planning

PLANNED

Define address schemes, server roles, and segmentation before deployment to establish a least-privilege network.

Engagement models

Three nets. One unified partner.

Start with the ring you need. Add the next one when you are ready, or switch seamlessly between fully managed protection and self-managed control.

Managed Protection (Inner Net)Continuous monitoring, configuration snapshots, and routine patch updates.
Self-Managed Suite (Middle Net)Direct IT control over firewall rules and VPNs with verified runbooks.
Digital Marketing & Scale (Outer Net)Hardened website architecture, SEO, and acquisition funnels.
Plan 1: Managed Protection

Dedicated Network Defense & Maintenance

Xoyan configures, monitors, and maintains your firewall and remote-access infrastructure. We handle routine updates, configuration snapshots, and user access provisioning so your network stays secure without overburdening your staff.

Firewall & Gateway Monitoring

Regular inspection of firewall logs, gateway metrics, and authentication patterns to catch anomalies early.

Managed Security Updates

Scheduled maintenance windows and rollback-ready boot environments for safe updates.

User Access Management

Swift user onboarding, remote VPN certificate issuance, and immediate offboarding deauthorization.

Maintenance & Operations Pipeline
01
MonitorWatch firewall logs, gateway health, and remote authentication activity
02
UpdateApply security patches, system updates, and verify boot environments
03
Back UpMaintain regular off-box encrypted configuration backups
04
Onboard/OffboardEnroll authorized remote devices, issue certificates, and deauthorize departing users
Engineered Accountability

Why Xoyan, Not DIY

Ad-hoc firewall rules, undocumented scripts, and unverified backups leave hidden exposure windows. Xoyan brings structured operational rigor, repeatable verification, and contractual accountability to your network defense.

Documented Runbooks & Acceptance Testing

Every firewall rule, VLAN policy, and VPN profile is accompanied by clear, step-by-step operational runbooks. Handover requires passing our rigorous 16-point acceptance test validating DHCP, DNS bypass blocking, domain auth, and segment isolation.

Rollback-Ready Updates & Config Snapshots

No policy change or firmware upgrade is pushed live without an automated, validated state snapshot. If an unexpected dependency surfaces, immediate rollback mechanisms restore the verified baseline in seconds without downtime.

Structured Incident Handling

When anomalous activity or perimeter threats are detected, containment protocols trigger immediately to isolate segments, preserve forensic audit logs, and coordinate active defense countermeasures.

Defined Support Hours

Direct access to security specialists with transparent availability windows, eliminating the ambiguity of best-effort community forums or overburdened in-house staff.

Committed Response Times

Committed service level agreements ensure priority intervention when it counts most, guaranteeing rapid escalation for critical security incidents and prioritized support for standard requests.

Bundled architecture

Inside the net, everything is connected.

One platform replaces a stack of separate tools. Data moves between them without leaving your protected perimeter. Essential perimeter firewall protection, isolated network segmentation, and secure remote access integrated under a single architecture.

  • Perimeter Firewall
  • Network Segmentation
  • Multi-VPN (ZeroTier, OpenVPN, WireGuard)
  • Active Directory Integration
  • Threat Protection & Filtering
  • ZFS Backups & Monitoring
  • Guest Network Isolation
  • Digital Marketing & SEO
Default-Deny Policy16-Point ValidatedLeast PrivilegeZero-Trust Segmentation
Overview: What You Get

Everything You Need to Defend & Expand

Perimeter Firewall

Stateful packet inspection with a default-deny policy. Every rule is deliberate, ensuring only permitted traffic enters or leaves each segment.

Network Segmentation

VLAN-based separation isolates domain controllers and servers from workstation networks, preventing lateral movement across segments.

Secure Remote Access (VPN)

Three flexible remote connectivity options—ZeroTier overlay, OpenVPN with Active Directory authentication, and WireGuard.

Active Directory Integration

Seamless domain join, Kerberos authentication, SMB file shares, and LDAPS-secured management logins through the firewall.

Threat Protection

Suricata intrusion detection and pfBlockerNG DNS filtering to intercept known malicious signatures and prevent DNS bypass.

Backups, Monitoring & Updates

Encrypted configuration backups, system health monitoring, and ZFS boot environments for safe, rollback-ready updates.

Guest Isolation

Dedicated guest network with strict internet-only egress, completely separated from internal servers and workstation subnets.

Digital Marketing & Brand Growth

Secure website architecture, technical SEO, and conversion optimization to help scale your brand and reach new customers safely.

Platform Architecture

Core Security Principles

Our rule sets and network topologies are built around five fundamental principles.

01

Default Deny

All traffic is blocked by default; every pass rule is deliberate and documented.

02

First Match Wins

Rules evaluate top-to-bottom on interface entry; explicit blocks take precedence.

03

Stateful Inspection

Return traffic for permitted sessions is allowed automatically, focusing rules on initiation.

04

Least Privilege

Users, remote devices, and servers reach only the specific services and ports they require.

05

Isolated Enclaves

Servers, workstations, and guests reside on separate VLANs with zero uninspected cross-talk.

Remote Access Options

Compare the three remote-access VPN methods supported by Xoyan.

Option
Architecture Model
NAT / CGNAT Support
Authentication Method
Best For
ZeroTierRecommended
Peer-to-peer encrypted overlay
Connects outward; works behind CGNAT and double NAT
Device authorization in Central; domain logon
We recommend this as the default for remote staff and sites without a public IP
Authentication: Device authorization in Central; domain logon
Best For: We recommend this as the default for remote staff and sites without a public IP
OpenVPN
Client-server terminating on firewall
Requires dedicated inbound port and public IP address
Active Directory credentials over LDAPS plus user certificate
Staff who require individual Active Directory login verification
Authentication: Active Directory credentials over LDAPS plus user certificate
Best For: Staff who require individual Active Directory login verification
WireGuard
Minimal, high-speed client-server tunnel
Requires dedicated inbound port and public IP address
Cryptographic key pair per device
Small IT and administrative groups wanting a fast, lightweight tunnel
Authentication: Cryptographic key pair per device
Best For: Small IT and administrative groups wanting a fast, lightweight tunnel

Access Control Matrix: Who Can Access What

Least-privilege network policies enforcing distinct access boundaries.

User Role
Connection Method
Permitted Access
Authentication
Office Staff
Wired or Wi-Fi (Users VLAN)
Domain services, file shares, and outbound web browsing
Active Directory domain logon
Authentication: Active Directory domain logon
Remote Staff (Default)
ZeroTier overlay tunnel
Domain services and designated file shares
Authorized device plus Active Directory domain logon
Authentication: Authorized device plus Active Directory domain logon
Remote Staff (Alternative)
OpenVPN tunnel
Domain services and designated file shares
User certificate plus Active Directory credentials
Authentication: User certificate plus Active Directory credentials
IT Administrators
Reserved internal address or admin VPN
Server administration interfaces and firewall management
Administrative account in dedicated security group
Authentication: Administrative account in dedicated security group
Visitors & Guests
Dedicated Guest Wi-Fi
Internet access only (internal networks blocked)
Guest Wi-Fi credential or captive portal
Authentication: Guest Wi-Fi credential or captive portal
Executive Summary

In Plain English: Understanding Business Cyber Risk

Cutting through the cybersecurity jargon for non-technical founders, directors, and managers. Here is what actually happens when security fails—and how four fundamental architecture choices protect your company.

The Reality of a Breach

What Happens When an Unprotected Business Is Compromised

Attacks rarely target complex encryption; they exploit open ports, flat internal networks, and unmonitored endpoints.

Costly Operational Downtime

Critical systems, databases, or workstations lock up or must be severed from the network. Employees are unable to work, orders cannot be processed, and revenue halts immediately while triage takes place.

Customer & Data Exposure

Sensitive client records, financial documents, employee files, or trade secrets are exfiltrated. Once data leaves your perimeter, confidentiality cannot be undone.

Erosion of Client & Partner Trust

Clients and business partners expect their information to remain confidential. A public security disclosure or compromised communication channel damages market reputation and can trigger client churn.

Exhausting Recovery & Remediation

Restoring a business after an intrusion involves forensic investigators, reimaging every endpoint, resetting credentials across the organization, and navigating potential regulatory inquiries.

The Engineered Defense

How Xoyan Eliminates the Opportunity for Catastrophe

Defensive architecture that ensures an incident on one device cannot paralyze the rest of your business.

Default-Deny Policy

Closed by Default

Instead of leaving doors unlocked and hoping attackers do not find them, every inbound and outbound path is shut. Only explicitly verified, required business traffic is allowed through.

Network Segmentation (VLANs)

Lateral Movement Blocked

Internal networks are compartmentalized into distinct security zones. If an office laptop or guest device is compromised, strict boundary rules prevent the infection from spreading to file shares or domain servers.

Rollback-Ready Backups & Snapshots

Rapid Restores

Automated, off-site, and isolated configuration baselines ensure your organization always has an uncorrupted point-in-time state to restore without having to rebuild from nothing.

Active Perimeter Monitoring

Early Warning

Persistent inspection flags suspicious outbound traffic, repeated unauthorized probing, and policy exceptions before a minor anomaly escalates into a catastrophic operational failure.

Need clarity on your organization’s current exposure?

Our engineers walk through your architecture in clear terms with zero sales hyperbole.

Schedule Architecture Review

Interactive Architecture Advisor

Solution Recommendation Calculator

Select your organization's scale and infrastructure to receive a tailored deployment recommendation. Tell us what you run today, and we will show you where the net has gaps.

50-250 seats
CLOUD
AUDIT
basic
Recommended Solution
Recommended for Hands-Off Defense

Plan 1: Managed Protection

We recommend this plan for organizations that prefer ongoing firewall monitoring, maintenance, security updates, and access provisioning handled by Xoyan.

Get a Free Consultation
REQUIREMENTS & PREREQUISITES

Deployments typically require an x86-64 physical appliance or virtual machine with at least two network interfaces, 4 GB RAM (8 GB if running intrusion detection), and 16 GB SSD storage. A managed switch supporting 802.1Q VLAN trunking (or dedicated physical network interfaces per segment) is recommended. Remote access via OpenVPN or WireGuard typically requires a public IP address.

Schedule free security audit

Protect your assets. Accelerate your brand.

Speak directly with a Xoyan network specialist. Tell us about your network requirements or growth objectives, and we will prepare a tailored consultation.

Plan 1: Managed Protection
Perimeter defense, ongoing monitoring & updates
Plan 2: Self-Managed Security Suite
Full in-house IT control & verified runbooks
Plan 3: Digital Marketing & Growth
Technical SEO, web performance & customer acquisition
Complete Security & Growth Package
Network security + digital brand scaling
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Frequently Asked Questions

Everything You Need To Know

Have questions about our unified security model or digital marketing offerings? Here are answers to our most common inquiries.

What does Xoyan provide?

Xoyan provides perimeter firewall defense, network segmentation, and secure remote-access VPN solutions integrated with Active Directory. We offer both fully managed maintenance and self-managed deployments, alongside digital marketing services to help grow your business securely.

What is the difference between Managed and Self-Managed protection?

Under the Managed plan, Xoyan handles ongoing firewall monitoring, security updates, configuration backups, and user onboarding/offboarding. With the Self-Managed plan, we build and verify your configuration, then hand over full operational control and documented runbooks to your in-house IT team.

Which remote-access VPN option should we choose?

We typically support three proven options: ZeroTier is our recommended default because it connects outward and works seamlessly behind NAT and CGNAT without inbound port forwarding. OpenVPN is ideal if you require per-user Active Directory login verification over LDAPS. WireGuard is recommended for administrators needing a fast, minimal tunnel.

How does Xoyan verify that our network is secure?

Every deployment undergoes our comprehensive 16-point acceptance test before handover. This verifies DHCP, DNS resolution, Active Directory authentication, file share access, cross-VLAN segmentation, DNS bypass prevention, and guest network isolation.

What are the hardware and infrastructure requirements?

Deployments typically require an x86-64 physical appliance or virtual machine with at least two network interfaces, 4 GB RAM (8 GB if running intrusion detection), and a managed switch supporting 802.1Q VLANs. A public IP address is recommended if deploying OpenVPN or WireGuard.

How does Xoyan handle security incidents and what is your response SLA?

For managed defense clients, Xoyan provides active perimeter containment, anomalous egress blocking, and configuration rollback. Rapid response protocols prioritize critical alerts with incident handling covering perimeter firewall containment, forensic log preservation, and direct coordination with client IT.

Does Xoyan provide regulatory compliance certification (ISO 27001, SOC 2, HIPAA)?

Xoyan implements the technical and architectural safeguards—such as VLAN network segmentation, default-deny firewall policies, centralized audit logs, and MFA remote access—required by major compliance baselines. However, Xoyan is an engineering and implementation partner, NOT an accredited compliance auditing body, and we do not issue legal or regulatory compliance certificates. Formal certification requires an independent third-party audit.

What is included in Xoyan’s endpoint security coverage?

Xoyan concentrates primarily on perimeter firewall defense, secure network zoning, and encrypted remote access tunnels. Our security hardening service audits operating system baselines, access controls, and patch status on workstations and servers. Comprehensive endpoint detection and response (EDR) agent licensing and management can be coordinated with your existing endpoint provider.

Platform Overview

Enterprise Cyber Defense & Scale. In Motion.

Continuous architecture demonstration — see how perimeter firewalls, segmented zero-trust tunnels, and rapid brand conversion operate together as a unified shield.

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