Linux server administration
Installation, hardening, updates, monitoring and troubleshooting for AlmaLinux, Rocky, Debian and Ubuntu. Reliable operations instead of surprises.
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Remote IT services for Germany
Linux, software and automation, delivered personally.
I take on remote assignments for companies across Germany: Linux servers, software development in Java, PHP, Python and Node.js, websites, Ansible automation, load balancers, networking, firewall and VPN, cybersecurity and DDoS protection. One contact person who does the work personally, with experience from operating several hundred servers.
- Reply within one business day
- Fixed price or hourly rate, transparent
- Invoiced by KernelHost GmbH
Remote services
What I take care of for companies in Germany
From ongoing IT support through Microsoft 365, Linux and Windows servers, firewall, VPN and cybersecurity to software development and automating entire server landscapes: I deliver every service personally, documented and without lock-in to individual vendors.
Java development
Backends, REST APIs, automation tools and integrations in Java. Experience from leading a multi-year cloud gaming project with proxy infrastructure.
Learn morePHP development
PHP 8 with a focus on security: WHMCS and Plesk modules, payment and registrar integrations, REST APIs and custom web applications.
Learn moreSoftware development
Programming assignments in Python, Node.js, TypeScript, Java, PHP, Go, Bash and PowerShell: backends, APIs, bots, automation and integrations that can actually be operated.
Learn moreWebsite development
Company websites that load in a fraction of a second, rank on Google and comply with GDPR. Custom-built or based on a CMS.
Learn moreAnsible automation
Playbooks, roles, AWX and Ansible Automation Platform: reproducible servers, automated patch days and rollouts across multiple stages.
Learn moreCloud and virtualisation
Proxmox VE, XCP-ng, KVM, Docker, Swarm and Kubernetes: private cloud platforms, container operations and hybrid architectures that fit the budget.
Learn moreLoad balancers and high availability
Resilient load balancer clusters with HAProxy, nginx or LVS and keepalived: TLS, health checks, failover within seconds and automation with Ansible.
Learn moreNetwork administration
Enterprise switches, VLANs, routing up to BGP, IP concepts for IPv4 and IPv6, monitoring and the analysis of stubborn faults.
Learn moreFirewall and network security
Rule sets you can understand: OPNsense or pfSense, Linux firewalls with nftables, segmentation, IDS/IPS and high availability, set up remotely and documented.
Learn moreVPN and site-to-site networking
Connect sites, home office, cloud and data centre securely: WireGuard, IPsec or OpenVPN with two-factor authentication instead of open ports and port forwarding.
Learn moreDDoS protection and mitigation
When your server, shop or game server is under attack: analysis, protection concept and implementation, terabit-class protection via KernelHost GmbH and emergency help during the attack.
Learn moreIT security and backup
Server hardening, two-factor and passkeys, monitoring with alerting and backups that actually work when it matters.
Learn moreCybersecurity
Find vulnerabilities before others do: external and internal review, hardening, phishing protection, emergency plan and help when it matters, explained in terms management understands.
Learn moreIT support and managed services
Your external IT department: helpdesk, updates, monitoring and user management, billed based on effort or with an hour bundle, without a monthly fee.
Learn moreMicrosoft 365 and email
Tenant, domain, email migration, Teams, OneDrive and multi-factor authentication set up cleanly instead of guessing in a web console for days.
Learn moreWindows Server and Active Directory
Active Directory, group policies, file servers, Remote Desktop and Hyper-V: build, migrate and secure Windows Server environments.
Learn moreWebsite maintenance
Updates with staging, backups, malware protection, load time and monitoring so your website stays secure and fast.
Learn moreIT consulting
Vendor-neutral and understandable: inventory, system selection, cloud or own server, security and costs under control.
Learn moreAre you in Austria?
For Vienna and the surrounding area I additionally offer on-site services: Wi-Fi and access points, NAS setup, server maintenance, network installation and emergency support.
Why work with me
Experience from real operations, not from a brochure
One contact who does it himself
You talk to the person who touches your servers and writes your code. No handover to juniors, no hold music.
Operations experience at scale
Since 2018 I have been running hosting infrastructure, since 2025 as KernelHost GmbH: several hundred servers, an own autonomous system and DDoS mitigation. What I recommend, I have operated under load myself.
Transparent prices
Hourly rates and flat rates are published on the pricing page. For projects you receive a fixed-price quote before any costs arise.
Clean handling
Quote, contract and invoice run through KernelHost GmbH with client portal, ticket system and all common payment methods.
How we work together
Request
Describe your needs briefly via the form, WhatsApp or the live chat.
Assessment
Within one business day you receive an assessment with effort, price and a proposed date.
Implementation
I do the work personally, remotely via secured access or on site, and keep you updated throughout.
Handover and invoice
Documented handover, then an invoice from KernelHost GmbH with convenient payment via kernelhost.com.
Clear prices without surprises
Remote services from €95 per hour, automation and architecture from €110 per hour, websites from €1,490. All prices net.
View all pricesSelected projects
Without client names for confidentiality reasons, but with technology, approach and result.
View case studies
Server hosting and DDoS protection
Need servers instead of hours?
Dedicated servers, KVM root servers, web hosting and DDoS protection in the Frankfurt data centre are provided by KernelHost GmbH, my hosting company. That is also where the infrastructure behind these services runs.
- Dedicated servers and KVM root servers in Frankfurt
- Terabit-class DDoS protection included
- Client portal, ticket system and live chat around the clock
KernelHost GmbH
kernelhost.com
kernelhost.com
From the guides
Practical knowledge from daily operations: costs, checklists and decision aids for your IT.
IT support for small businesses: what it costs and what must be included
Pricing models, realistic costs and the services no maintenance contract should be missing.
Read articleRAID is not a backup: the 3-2-1 rule for companies
Why a RAID only protects against disk failure and what a backup looks like that actually works when it matters.
Read articlePlanning office Wi-Fi: choosing and placing access points correctly
How many access points, where to mount them, which vendors: planning Wi-Fi that does not fall over with 40 devices.
Read articleFrequently asked questions
Do you work for companies across Germany?
Yes. All services for Germany are delivered remotely, with secured access to your systems and regular alignment via video call. On-site appointments are available in Vienna and the surrounding area.
How is the work billed?
By effort in 15-minute increments or at a fixed price for well-defined projects. The invoice is issued by KernelHost GmbH in Vienna, for companies in Germany usually under the reverse charge mechanism without Austrian VAT.
How quickly do I get a reply?
I answer requests within one business day with a first assessment.
Do you sign a non-disclosure agreement?
Of course. Confidentiality is standard for me, on request I sign your NDA before the first conversation.