SUNITECH
Contact us

Open-source solutions

Open source for SMEs, with a clear framework.

Linux, Proxmox, Nextcloud, Docker, OPNsense and WireGuard: plan a maintainable open-source architecture for your SME in French-speaking Switzerland.

Talk to an expert Explore our IT audit
SMEsat the heart of what we do
A dedicated contactwho knows your business
A local teamin French-speaking Switzerland

Suitable tools. Local support. A team close to you.

Geneva
Lausanne
Fribourg
Neuchâtel
Valais

A professional IT environment that needs monitoring and maintenance.

Choose open tools for specific needs.

Open source provides access to code under each licence’s terms. For an SME, its value is mainly practical: hosting an application, sharing files, virtualising servers or securing a connection. An open product does not replace capacity planning, maintenance or backups. Sunitech helps you compare options and define a realistic scope for your organisation. These six technologies address different needs and are not a suite that should automatically be installed together.

Linux

A foundation for servers and applications, with a distribution, support period and operational skills chosen to suit your needs.

Proxmox

A virtualisation platform to size around compute, storage and networking. Backup and recovery procedures still need to be designed.

Nextcloud

Managed file and collaboration spaces, with sharing rules, account administration and tested backups.

Docker

Applications distributed in containers, with their images and dependencies. Persistent data, secrets and updates require ongoing management.

OPNsense

A firewall and routing solution configured around permitted traffic, network segmentation and the remote access you need.

WireGuard

A VPN protocol for encrypted tunnels. Key distribution, revocation and routing form part of the chosen architecture.

How we support you.

From initial scoping to ongoing support, the agreed work and each party’s responsibilities are defined with you before implementation.

Workstations

Installation, configuration and support.

Cybersecurity

Protection of data and access.

Servers and infrastructure

Monitoring, updates and optimisation.

Backup and disaster recovery

Backup strategy and disaster recovery planning.

Cloud and Microsoft 365

Tenant management, backups and administration.

User support

A local, responsive and available team.

Solutions suited to your sector.

We start with your teams’ needs, business applications and organisational constraints.

Professional services

Share client files between colleagues, with appropriate access and documents that are easy to find.

Healthcare & medical

Protect patient records and maintain the tools needed for consultations.

Property & construction

Find plans and files on site while keeping control of access for everyone involved.

Local authorities & associations

Organise access for employees, elected representatives and volunteers, and make handovers easier when teams change.

A well-managed environment.

Tools alone are not enough. Ongoing management, access and documentation need to remain clear over time.

Access and security

Roles, permissions and protections suited to the agreed scope.

Continuity

Identified dependencies, with backup and recovery arrangements to prepare.

User management

Documented joiners, leavers and changes in responsibility.

Monitoring and records

Accessible configuration, licence and upcoming renewal records.

Understand your options before deciding.

Uses, limitations and frequently asked questions: the points to clarify when preparing your project.

Start with your business dependencies.

Before replacing a tool, check the applications it supports, file formats and what your teams expect. Some business software requires a particular operating system, driver or platform. We suggest mapping these dependencies in an IT audit, then comparing the current setup with an open alternative. A mixed architecture can retain essential applications while changing only the services for which an alternative makes sense.

  • Application and equipment compatibility
  • Maintenance and support responsibilities
  • Export formats and access to data
  • Testing and a way to roll back

Plan maintenance and recovery.

The service needs to remain operable when the person who installed it is unavailable. Administration access, versions, dependencies and useful procedures should be documented. Backup and disaster recovery cover the data and configuration needed to restart. We agree the required checks, update windows and intervention arrangements with you. Vendor or third-party support can complement your available skills, depending on the product and the agreed scope.

Is open source always cheaper?

No. Compare the total cost: hardware or hosting, possible subscriptions, integration, training, maintenance and recovery. A licence without a usage fee does not mean that operation costs nothing. Your teams’ time and future dependencies matter too. Our IT governance support helps weigh these criteria against your business objectives.

Can open source work alongside Microsoft 365?

Yes, provided interfaces, permissions and responsibilities are assessed. A business could keep its email service while evaluating a different file service or server platform, for example. Check the functions actually available and the licences for each product. Shared identities, client devices and backups are design considerations rather than compatibility that should be assumed.

How do you preserve the option to change?

Plan reversibility with usable backups, documented exports and accounts whose access your organisation controls. We aim to make technical decisions and handover procedures understandable. Open software can make some changes easier, but does not by itself guarantee a straightforward migration. Explore the Linux, Nextcloud and Docker guides for each tool’s constraints.

Official project documentation.

See the Linux kernel documentation, the Proxmox VE manual, the Nextcloud administration guide, the Docker overview, the OPNsense documentation and the WireGuard project. Check the features and terms applicable to the versions you choose.

Why work with Sunitech on your Open-source solutions project?

Advice and solution selection

Review of your needs, comparison of options and clearly explained priorities.

Deployment and integration

Preparation, configuration, testing and coordination with the relevant providers.

Support and development

Agreed support scope, documentation, licences and next steps.

A project? A question?

Let’s discuss your needs.

An initial conversation to understand your situation and decide on the next steps together.

Contact us
The Jet d’Eau and the Alps beside Lake Geneva.
  • Review of your environment
  • Understanding your business challenges
  • Guidance and recommendations
  • No obligation

It starts with a conversation

Let’s talk about your IT.

Tell us what you need. We will take the time to understand your situation.

Your information is used to respond to your request. How we use your information.

+41 22 303 00 47 contact@sunitech.ch

How can we help?

Our expertisePractical IT solutions tailored to SMEs in French-speaking Switzerland. One team to secure, maintain and develop your IT.Our approachWe take the time to understand your situation so we can recommend suitable, lasting solutions focused on results.SectorsEvery sector has its constraints. We adapt tools, security and support to the way your business works.About usSunitech supports businesses in French-speaking Switzerland with reliable IT, a personal approach and a long-term view.ResourcesOur articles and practical guides help you understand the IT topics that affect your business and prepare for your next decisions.IT auditAn initial review to understand your environment and define priorities. The scope, deliverables and schedule are agreed with you.ContactNeed support, have a project or a question? Let's discuss your situation and the best way to help.Our local coverageGeneva, Lausanne, Fribourg, Neuchâtel and Sion: support tailored to your teams and workplaces.CybersecuritySecurity tailored to your circumstances, to protect your people, your data and your business continuity.Managed ITWe look after your infrastructure so you can work in a reliable, documented and monitored environment.Cloud and Microsoft 365Well-organised collaboration tools, accessible files and protected identities, in the office and remotely.IT supportOne person understands your situation and remains responsible for your request until normal service is restored.Backup and disaster recoveryWe prepare data protection and the recovery of your essential services before an incident forces you to improvise.IT governanceWe turn your needs and constraints into a clear roadmap so you can make informed decisions.Professional servicesYour teams work across files, clients and deadlines. Document access and well-organised collaboration are essential to the quality of your services.Healthcare & medicalYour teams need reliable, secure and easy-to-use tools so they can focus on their core work: quality care and support for your patients.Industry & manufacturingOffices, workshops and production sites face different constraints. We define the IT scope with your managers to provide reliable, secure solutions suited to your circumstances.Commerce & retailYour shops and teams depend on connected tools. We support you with reliable, secure IT suited to your opening hours and the variety of your sites.Property & constructionBetween the office, travel and construction sites, documents need to stay organised and access must suit those involved. We help connect your teams and projects.Local authorities & associationsEmployees, elected representatives, volunteers and partners use shared tools in different roles. We help you structure this environment for straightforward, secure and effective communication.Legal noticeSunitech's contact details in Geneva, website hosting, content rights and information about using our online services.PrivacyFind out how Sunitech uses form submissions, protects access to them and asks for your choice about analytics using Google Analytics.Project examplesThree fictional scenarios to explore how to prepare a migration, a backup plan or IT support. They illustrate an approach and objectives, without presenting verified client references.Complete migration to Microsoft 365Fictional scenario: an architecture practice with 25 employees prepares its migration to Microsoft 365 to improve document sharing and secure access.Infrastructure security and backupAn illustrative scenario for an industrial SME. This example helps prepare a project; it does not describe a client or a verified Sunitech result.Day-to-day Managed IT and supportAn illustrative scenario for a services SME. This example helps prepare a project; it does not describe a client or a verified Sunitech result.IT solutionsReliable, secure and scalable IT solutions to simplify daily work and support your growth over the long term.Artificial intelligenceAI advice and integration for SMEs in French-speaking Switzerland: Copilot, automation, training and data governance. Let's build a project suited to how you work.Microsoft 365Sunitech supports your adoption of Microsoft 365 with a practical, local approach. Email, collaboration, files, security and support: a complete environment to help your business grow.Microsoft TeamsMicrosoft Teams for your SME: organise teams, meetings and files, prepare external access and choose licences that fit the way your business works together.SharePointSharePoint for SMEs: organise documents, define access, prepare a migration and make collaboration easier with clear rules that remain useful as teams change.OneDriveOneDrive for SMEs: sync work files, prepare offline access, manage sharing and plan document handovers so that individual storage supports everyday teamwork.Exchange OnlineExchange Online for SMEs: email migration, shared mailboxes, calendars, access security and licence choices based on how your business communicates every day.Microsoft AzureAzure for Swiss SMEs: assess cloud workloads, costs, security and continuity before deploying infrastructure that fits your applications and business priorities.Microsoft Entra IDMicrosoft Entra ID for SMEs: organise identities, MFA, external access and leavers, with clear rules matched to working practices and available licences.Microsoft IntuneMicrosoft Intune for SMEs: prepare devices, deploy applications, organise updates and protect work data with management rules that fit your teams and equipment.Microsoft DefenderMicrosoft Defender for SMEs: distinguish endpoint and email protection, choose licences, plan deployment and define who investigates alerts and follows incidents.Microsoft CopilotMicrosoft Copilot for SMEs: choose a first use case, check licences and document permissions, train your teams and evaluate the quality of the results they obtain.Windows 11Windows 11 for SMEs: check compatibility, plan migration, test business software and organise updates while accounting for data, access and device management.Dell TechnologiesDell PowerEdge servers for SMEs in French-speaking Switzerland: sizing, iDRAC administration, migration and infrastructure support with Sunitech.HPEPlan HPE ProLiant servers in French-speaking Switzerland: application needs, iLO management, maintenance and infrastructure continuity with Sunitech.VeeamVeeam backup for SMEs in French-speaking Switzerland: protected workloads, repositories, separate copies and restoration testing with Sunitech.SophosSophos for SMEs in French-speaking Switzerland: endpoint protection, Sophos Central policies, firewalls and alert handling with Sunitech.FortinetFortinet FortiGate for SMEs in French-speaking Switzerland: firewall rules, segmentation, site connectivity and documented administration with Sunitech.UbiquitiSunitech supports SMEs in Geneva, Lausanne, Vaud and French-speaking Switzerland with Ubiquiti and UniFi Wi-Fi, switching, security and site connectivity. A practical approach, local teams and support suited to your needs.VMwareVMware vSphere for SMEs in French-speaking Switzerland: inventory, compatibility, maintenance, backups and virtualisation planning with Sunitech.ProxmoxProxmox VE for SMEs in French-speaking Switzerland: migration assessment, virtual machines, storage, networking and recovery with Sunitech.SynologySynology NAS for SMEs in French-speaking Switzerland: shared files, access rights, Hyper Backup and Active Backup for Business with Sunitech.AdobeAcrobat and Creative Cloud for SMEs in French-speaking Switzerland: choose suitable licences, organise access and prepare ongoing support with Sunitech.LenovoThinkPad, ThinkCentre and ThinkStation: plan the selection, configuration and replacement of your Lenovo computers in French-speaking Switzerland with Sunitech.AcerEquip your SME with suitable Acer computers: application compatibility, device preparation and organised support in French-speaking Switzerland with Sunitech.SupermicroSupermicro servers for Swiss SMEs: plan sizing, compatibility, administration and recovery with Sunitech around your applications and operational requirements.CiscoCisco networks for SMEs in French-speaking Switzerland: choose equipment, segment access, manage licences and prepare network changes with Sunitech.ArubaPlan your Aruba network in French-speaking Switzerland: Wi-Fi coverage, switches, guest access and management suited to your SME's daily work with Sunitech.MikroTikMikroTik routing, VLANs and remote access for SMEs: prepare documented configurations, security and ongoing network support in Switzerland with Sunitech.TP-LinkTP-Link Omada Wi-Fi, switches and gateways: choose a controller, prepare access and organise network maintenance for your Swiss SME with Sunitech.ZyxelZyxel networks and Nebula management for Swiss SMEs: check compatibility, organise access and prepare monitoring across your business sites with Sunitech.SonicWallSonicWall firewalls for SMEs in French-speaking Switzerland: prepare rules, remote access, licensing and ongoing maintenance around your needs with Sunitech.AxisAxis network cameras and video for SMEs: plan connectivity, access, storage and maintenance with Sunitech within an agreed project scope in Switzerland.QNAPQNAP NAS for SMEs in French-speaking Switzerland: prepare storage, permissions, backups and restoration tests with Sunitech around your business needs.AcronisAcronis backup for SMEs in French-speaking Switzerland: define data to protect, storage destinations, access and recovery tests with Sunitech's support.APCAPC UPS systems for SMEs in French-speaking Switzerland: assess equipment loads, useful runtime and controlled system shutdown with support from Sunitech.AppleApple Mac management for SMEs in French-speaking Switzerland: application compatibility, device configuration, encryption and ongoing support with Sunitech.AutoCADPrepare your AutoCAD environment in Switzerland: workstations, versions, extensions, files and backups suited to your technical office with Sunitech.ArchicadPrepare Archicad workstations and collaboration for your Swiss practice: compatibility, BIMcloud, permissions and backups within an agreed Sunitech scope.LinuxLinux servers for SMEs in French-speaking Switzerland: select a suitable distribution and prepare security, updates and service recovery with Sunitech.NextcloudNextcloud for SMEs in French-speaking Switzerland: plan hosting, sharing permissions, updates and document backups with Sunitech's practical support.DockerDocker containers for SMEs in French-speaking Switzerland: prepare applications, volumes, access, backups and updates within an agreed Sunitech scope.OPNsenseOPNsense firewalls for SMEs in French-speaking Switzerland: prepare hardware, network rules, VPNs and ongoing maintenance with Sunitech to an agreed scope.WireGuardWireGuard VPN for SMEs in French-speaking Switzerland: plan site links or remote connections, keys, access rules and ongoing management with Sunitech.Open-source solutionsLinux, Proxmox, Nextcloud, Docker, OPNsense and WireGuard: plan a maintainable open-source architecture for your SME in French-speaking Switzerland.Technologies and manufacturersWe select and integrate suitable technologies to build secure, effective and adaptable IT environments for businesses in French-speaking Switzerland.Has your business already been hacked?How to spot a Microsoft 365 compromise: warning signs, Outlook rules, logs, incident response and priorities for Swiss SMEs.When an employee leaves: securing access and dataIT offboarding for SMEs: revoke access, transfer documents, manage email and retain knowledge when an employee leaves your business.48 hours without IT: could your SME keep operating?Backups, RTO, RPO, disaster recovery and business continuity: questions to help your SME prepare for an IT outage and plan the recovery of its operations.Cloud, hybrid or on-premises: choosing what your SME needsCloud, on-premises infrastructure or a hybrid architecture: compare usage, costs, risks and the ability to change providers before choosing.IT budget: what does your contract actually cover?Maintenance, security, backups and support: questions to understand what your IT budget covers and check the work being carried out.Securing Microsoft 365: accounts, MFA and accessMandatory MFA for administrators, security defaults or Conditional Access, emergency accounts and recovery: Microsoft 365 access checks for SMEs.Teams, SharePoint, OneDrive: what goes where?OneDrive for individual work, SharePoint for the team, Teams for access: where to store each file and how to plan external sharing and employee departures.Preparing for your SME's IT auditA practical checklist to prepare for your SME's IT audit: documents, people, access arrangements and decisions to make after the assessment.