Linux server administration
Installation, hardening, updates, monitoring and troubleshooting for AlmaLinux, Rocky, Debian and Ubuntu. Reliable operations instead of surprises.
Learn more
IT services in Vienna and the surrounding area
IT that works: on site in Vienna and remote.
From Wi-Fi installation in the office to automating entire server landscapes: I come to you in Vienna and the surrounding area and work remotely for companies across Austria. One contact person who does the work personally, with experience from operating several hundred servers.
- On site in Vienna and surroundings
- Reply within one business day
- Fixed price or hourly rate, transparent
Remote services
Remote services for all of Austria
From ongoing IT support through Microsoft 365, Linux and Windows servers to 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 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 moreNetwork administration and firewall
OPNsense firewalls, VLANs, VPN with WireGuard and IPsec, routing up to BGP, enterprise switches and the analysis of stubborn faults.
Learn moreIT security and backup
Server hardening, two-factor and passkeys, monitoring with alerting and backups that actually work when it matters.
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 more
On site in Vienna
On-site services in Vienna and the surrounding area
Some things cannot be done remotely. For companies, practices and households in Vienna and its surroundings I come by in person.
Wi-Fi and access points
Stable Wi-Fi for office, practice, workshop or home: site survey, access points, guest Wi-Fi and mounting on site in Vienna.
Learn moreNAS setup
Central storage with RAID, user permissions, secure remote access and a backup concept that survives ransomware.
Learn moreOn-site server maintenance
Hardware diagnostics, disk and RAID replacement, firmware, UPS and server room check: I come to your servers in Vienna and the surrounding area.
Learn moreNetwork installation
From patch panel to firewall: I set up your company network on site, cleanly cabled, segmented and documented.
Learn moreIT emergency and on-site support
Server down, network dead, suspected ransomware? Fast help remotely and on site in Vienna, followed by a plan so it does not happen again.
Learn morePC and workstation service
Set up new workstations, transfer data, connect printers, home office with VPN, upgrade and secure devices, right at your premises in Vienna.
Learn morePhone system and VoIP
From the ISDN system to modern VoIP telephony: 3CX or cloud system, SIP trunk, IP phones, softphones and number porting.
Learn moreService area: Vienna and surroundings
On-site visits in all Viennese districts (1010 to 1230) and the surrounding area, such as Klosterneuburg, Korneuburg, Stockerau, Gerasdorf, Schwechat, Mödling, Perchtoldsdorf, Brunn am Gebirge, Vösendorf, Purkersdorf and Tulln. Remote services for companies across Austria.
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, on-site service in Vienna from €95 per hour plus travel flat rate, packages for Wi-Fi, NAS and servers. 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
Which area do you cover on site?
All of Vienna and the surrounding area, such as Klosterneuburg, Korneuburg, Schwechat, Mödling, Perchtoldsdorf and Purkersdorf. Within Vienna a travel flat rate of €35 applies, outside I charge per kilometre.
How is the work billed?
By effort in 15-minute increments (on site in 30-minute increments) or at a fixed price for well-defined projects and packages. The invoice is issued by KernelHost GmbH in Vienna with 20 % VAT.
How quickly do I get a reply?
I answer requests within one business day with a first assessment. In emergencies you reach me via WhatsApp or phone usually within an hour.
Do you sign a non-disclosure agreement?
Of course. Confidentiality is standard for me, on request I sign your NDA before the first conversation.