Pricing for Linux server maintenance

One fixed price per server, AI included.

Observe and Maintain can be canceled monthly, Fleet has a contract term, all prices are net, and AI is included when the control center runs with us. Below, for comparison, the market prices and a calculator with your numbers.

Plans

Observe

€14per server per month

Reports what it finds. Changes nothing.
- Open vulnerabilities and end of security updates
- Detects and reports attacks
- Keeps an eye on services, certificates and website
- AI morning report
Cancel monthly
Inquire
Most popular
Maintain

€37per server per month

Closes vulnerabilities and locks attackers out, by your rules.
- Everything in Observe
- Security updates, usually within one hour
- All updates in the maintenance window
- Rollback path before every update, rollback on errors
- Temporary blocks for attackers
- WordPress plugins checked individually
Cancel monthly
Inquire
Fleet

€29per server per month

For IT service providers and agencies from 25 servers, from 100 servers €22. More on the agencies page.
- Everything in Maintain
- Customer access: each customer sees only their own servers
- Maintenance reports per customer in their own access
- Morning report across the whole fleet
- Priority support
12-month term; from 500 servers, €4 per server on a 24-month term
Request a quote

All prices net, plus VAT, only for entrepreneurs within the meaning of Section 14 of the German Civil Code (BGB); a contract is formed only by a quote in text form.

Your numbers in the cost calculator

Market comparison

What a managed Linux server costs today.

Sentinel takes over the routine of server management: it installs security updates, checks afterward, keeps the rollback path ready and writes the audit log. Anything beyond that stays with you or your service provider.

€100–150

per server per month is what server management costs as a flat rate from a service provider.
€220

per server per month from an IT service provider billed by the hour, calculated with two hours at €110.
€0

is what unattended-upgrades and fail2ban cost. They install and block. Neither of them checks whether the website still runs afterward. There is no rollback path.

Flat rate: range, hourly rate: average of researched offers, as of October 2026; the two hours are our assumption. Sentinel: Maintain €37, Fleet from 25 servers €29, per server per month, net, plus VAT.

Cost calculator

Calculate with your own numbers.

Your numbers

Number of servers: 10

How you run your servers today In-house administrator IT service provider, billed by the hour Managed server at the hosting provider Server management at a flat rate

Adjust assumptions

Employer cost per full-time position per year (€) Routine share with few servers, at least (%) Routine share of one position per 40 servers (%)

With 10 servers you pay €4,440 a year with Sentinel. For today we assume around €16,250.

Today, per year: €16,250
With Sentinel, per year: €4,440
Budget freed up per year: €11,810

Assumption: routine share of 25% of a full-time position at €65,000 employer cost per year. Sentinel: €37 per server per month, net, Maintain plan, cancel monthly.

What stays with you: approvals for reboots and release upgrades, outages outside maintenance, your own projects.

Pilot program until 30 November 2026

Six months of operation first, then the price.

Up to five servers on the Maintain plan, without payment details and without automatic renewal. After the six months you decide based on the audit logs.

Request a pilot place

How the pilot works is described on the pilot program page.