Networking · Cybersecurity · AI
IT infrastructure and security you can rely on
Network audits and design, IT systems security, applications and AI, plus web analytics and SEO. Two specialists, one brand — sharing practical knowledge on the LinuxCloudHacks channel.
100+
Published technical guides
15+
Years of IT experience
PL/EN
Training & documentation
LEBIECKI
PRIVATE IT CONSULTANCY
DIGITAL SOLUTIONS
STRATEGY
From audit to deployment
Networks · Security · AI
Networks
Security
AI
Analytics
About Us
Two specialists, one brand
Lebiecki is the brand we work under together — brothers Filip and Jakub Lebiecki. We combine two complementary perspectives: IT infrastructure and security with web analytics and technical SEO.
Filip focuses on networking, security, applications and AI, and delivers training — sharing his knowledge on the LinuxCloudHacks channel (over 100 technical guides). Jakub specializes in web analytics implementations and audits, server-side tracking and SEO audits. The company has been operating since 2018.
Filip Lebiecki
Networking · Cloud · Security · AI · Training
Network audits and design, cloud infrastructure (AWS, GCP, Azure), systems security, applications and team training. Creator of the LinuxCloudHacks channel.
Jakub Lebiecki
Analytics · Server-side tracking · SEO
Web analytics implementations and audits (GA4, Google Tag Manager), server-side tracking and technical SEO audits.
Services
End-to-End IT Support for Your Business
From auditing your existing infrastructure, through design and implementation, to training your team — all in one place.
Network & ICT System Audits
Comprehensive analysis of network infrastructure and systems: performance, configuration, redundancy, best-practice compliance. A report with concrete recommendations.
Network Design
LAN/WAN/Wi-Fi design, segmentation, routing (BGP/OSPF), site-to-site VPNs, Zero Trust architectures and IPv6 — from small offices to multi-site environments.
Network Device Configuration
Configuration of routers, switches, firewalls and Wi-Fi controllers (incl. MikroTik, Linux). VPN, QoS, RADIUS/EAP-TLS and 802.1X authentication deployments.
MikroTik
Configuration and audit of MikroTik (RouterOS) devices: routing, firewall, VPN, QoS, containers. Cleaning up existing configurations and documentation.
VPNs & Remote Access
Site-to-site and hub-and-spoke VPN deployments: WireGuard, Tailscale, ZeroTier, Cloudflare Zero Trust. Redundant links, failover, and advanced TLS traffic obfuscation (Xray, REALITY) for demanding environments.
IPv6 & Secure DNS
IPv6 deployments: dual-stack and IPv6-only networks (DNS64/NAT64, SLAAC, prefix delegation), plus secure DNS — DoT and DNSSEC. Readiness audits and zero-downtime migration.
Load Balancers & High Availability
Traffic balancing and HA architectures: HAProxy, Nginx, keepalived, MetalLB. L4/L7 load balancing, failover and scaling services with zero downtime.
Cloud — AWS, GCP, Azure
Cloud infrastructure design and deployment: VPC networking, security, migrations and cost optimization. Hybrid architectures connecting public cloud with your own infrastructure.
Private Cloud — Proxmox, Ceph, OpenStack
Private cloud and HCI cluster builds: Proxmox VE with Ceph, OpenStack (Kolla-Ansible, Neutron, Ceph integration). Distributed storage, high availability and cluster performance troubleshooting.
Kubernetes
Building and operating Kubernetes/K3s clusters: CNI networking (Calico), MetalLB, ingress, secure service exposure and integration with existing infrastructure.
Linux Administration
Linux server administration and automation: systemd, performance tuning, advanced nftables firewalls (NAT, load balancing, DSR), hardening, and troubleshooting network and system issues.
IT Systems Security
Security audits, system and SSH hardening (Yubikey, OTP, short-lived certificates), certificate and secrets management (PKI, HashiCorp Vault), Zero Trust and SSO.
Application Design & Development
Design and development of web applications and automation tools — from concept and architecture to deployment and maintenance.
AI Solutions
Integrating AI models into business processes: assistants, automation, document processing. Advisory on choosing and securely deploying the right solutions.
IT & Cybersecurity Training
Hands-on training for teams: Linux (incl. the from-scratch "Linux in 3h" course), networking, IPv6, Kubernetes, VPNs, security. Tailored programs, workshops and materials in Polish or English.
Web Analytics & Server-Side Tracking
Analytics implementations and audits (GA4, Google Tag Manager), server-side tracking for better data quality, privacy compliance and ad-blocker resilience.
SEO Audits
Technical SEO audits: indexing, performance, site structure, structured data. A prioritized, actionable list of changes to implement.
Sharing Knowledge
LinuxCloudHacks on YouTube
Over 100 technical guides on networking, security, Linux and cloud. The best showcase of our craft — see how Filip works and explains complex topics.
VPN / Zero Trust
Build a Site-to-Site VPN with Cloudflare Mesh (Full Guide)
Security
The ULTIMATE Guide to Enterprise Wi-Fi Security (HashiCorp Vault + EAP-TLS)
Infrastructure
Is HCI Worth It? Proxmox + Ceph in the Real World
Networking
Multipath TCP Site-to-Site VPN (2x Bandwidth + Instant Failover)
Contact
Let's Talk About Your Project
Need an audit, network design, training or implementation support? Drop us a message — we usually reply within 24 hours.