Services

Network Consulting & Architecture

We analyse, evaluate and evolve mission-critical network architectures — from campus infrastructure to multi-site WAN.

• Analysis and evolution of existing network architectures
• High-level and low-level design for campus, WAN, WLAN and datacenter
• Routing, switching, segmentation, redundancy and high availability
• Vendor-neutral technical evaluation of solutions and proposals
• Design reviews, modernisation and migration concepts
• SD-WAN and Wi-Fi design for sites and campus — Wi-Fi 6/6E, controllers, coverage planning

Network Security & Segmentation

We design and harden security architectures for enterprise networks — traceable, policy-based and zero-trust oriented.

• Firewall, VPN and segmentation concepts
• Security reviews, technical risk analyses and system hardening
• Access controls and zero-trust oriented network architectures
• Analysis and clean-up of historically grown firewall rulesets
• Security concepts for security-critical communication infrastructure
• Remote-access VPN and secure mobile working — home office, field staff, branch sites

Security Assessment & Penetration Testing

We test your infrastructure for vulnerabilities in a controlled manner — with a clearly defined scope, written authorisation and an understandable remediation report.

• Vulnerability analyses of networks, firewalls and exposed services
• Penetration tests under a scope and test window agreed in writing
• Configuration and hardening reviews based on recognised best practices
• Traceable findings report with prioritised remediation recommendations
• Optional re-test after remediation measures have been implemented

We perform penetration tests exclusively upon written authorisation with a defined scope and test window.

Security Analysis & Incident Support

When security-relevant events occur, we analyse network activity, log data and communication paths — structured, documented and confidential.

• Analysis of suspicious network activity and security-relevant events
• Evaluation of router, switch, firewall and VPN logs as well as SIEM data
• Technical support for incident response and event reconstruction
• Network security analysis — examination of communication paths and data flows
• Recommendations for containment, clean-up and future hardening

Device Security Check

"Has my device been compromised?" — We examine laptops, smartphones and tablets in a structured way for signs of unauthorised access and manipulation.

• Technical examination of laptops, smartphones and tablets for indicators of compromise
• Analysis of network connections, processes, configurations and anomalies
• Understandable findings report with a clear assessment and recommended actions
• Recommendations for hardening, rebuilding and future device hygiene
• Discreet handling — including for executives and exposed officials

Our analyses are technical examinations and assessments. They do not replace court-admissible evidence preservation by sworn experts; where required, we refer specialised partners.

Troubleshooting & Root Cause Analysis

When standard analyses hit their limits — we find the cause of complex network incidents, even under escalation pressure.

• Complex routing, switching, performance and availability problems
• Analysis of packet loss, latency, connection drops and redundancy failures
• Structured root cause analysis with solid technical evidence
• Escalation support towards vendors and service providers
• Action plans for lasting stabilisation
• Wi-Fi problems: roaming, coverage, interference — measured, not guessed

Datacenter & Cloud Networking

We design and modernise datacenter and hybrid cloud networks — from spine-leaf fabrics to AWS and Azure connectivity.

• Cisco Nexus and ACI, spine-leaf, VXLAN and EVPN
• Multi-datacenter design, cloud connectivity and hybrid cloud architectures
• AWS and Azure network integration
• Network automation with Python, Ansible, Terraform and PowerShell
• Standardised deployments, configuration verification and infrastructure as code

Backup Concepts, Documentation & Project Support

We secure operations and knowledge — tested backup and recovery concepts, complete technical documentation and experienced project support.

• Backup and recovery concepts — local, offsite and immutable (immutable/air-gap), aligned with your recovery objectives
• Evaluation and selection of suitable backup solutions, including regular restore tests
• System specifications, design descriptions, migration and acceptance documentation (incl. IBM DOORS)
• Technical project management, workshops and architecture reviews
• Support for tenders, implementations and migrations

Modernisation of Outdated Systems

Old systems are rarely the problem — unmaintained ones are. We bring outdated infrastructure up to a current, hardened state in a controlled way.

• Inventory of outdated network, server and security components — versions, support status, risks
• Upgrade and update planning with test windows, rollback paths and minimal downtime
• Security review before and after modernisation — configuration, hardening, open vulnerabilities
• Replacement of unsupported systems and migration to current platforms
• Complete documentation of the new state — configurations, changes, operating notes

Databases & Data Migration

Legacy Access databases, grown SQL landscapes, scattered tables — we move your data cleanly into modern, secured database systems.

• Inventory of existing data assets — Access, Excel silos, older SQL servers
• Cleansing and normalisation of the data model before migration
• Conversion and migration to SQL Server, PostgreSQL or MariaDB — with validation of every record
• Integration with existing applications and interfaces (ODBC, APIs, reporting)
• Permissions, backup and documentation for the new database operation