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 Linux Expert Support

Comprehensive Technical Solutions - Supplying and Supporting Linux since 1991

24/7 Linux Support

GEN supports every flavour of Linux — desktop and server — with contractual SLAs ranging from a 4-hour response Monday to Friday through to 30-minute response 24 hours a day, 7 days a year including bank holidays. We also provide preventative maintenance, consultancy, and training across the full Linux stack.

  • Linux powers almost all websites, everywhere
  • Linux powers Android, iOS, most phones, tablets and embedded devices
  • Linux powers the Internet, from your broadband router to the large-scale backbones
  • Linux runs over 95% of the world's cloud and web infrastructure

Any Flavour, Fully Supported

Linux is not a single product — there are many distributions, each with its own strengths and operational characteristics. We fully support Arch, Rocky, Alma, Red Hat, Fedora, Kali, Mint, Debian, NixOS, SuSE and Ubuntu, and we can support most others. Our team run Linux internally across routing, switching, firewalls, servers, telephony and virtualisation, so we work with it every day across the same distributions our customers use.

Alpine Linux

Alpine

Alma Linux

Alma

Arch Linux

Arch

Fedora Linux

Fedora

Kali Linux

Kali

Linux Mint

Mint

Debian Linux

Debian

Nixos Linux

NixOS

RedHat Linux

RedHat

SuSE Linux

SuSE

Linux

Rocky

Ubuntu Linux

Ubuntu

Technical Support

GEN provides Linux technical support for desktop and server environments under contractual SLAs. All support tiers give you access to our engineering team — not a script-reading helpdesk. We offer both pre-paid maintenance contracts and per-incident support.


Support Tiers & SLAs

Tier Coverage Response Time Typical Use
Essential Monday–Friday, 08:00–18:00 4 hours Non-critical desktops and workstations
Standard Monday–Friday, 08:00–18:00 2 hours Business desktops and office servers
Priority Monday–Friday, 08:00–18:00 1 hour Critical servers and production systems
Extended Monday–Friday, extended hours 30 minutes High-criticality production environments
24/7 Standard 24 hours, 7 days including bank holidays 1 hour Always-on services and infrastructure
24/7 Premium 24 hours, 7 days including bank holidays 30 minutes Mission-critical platforms requiring fastest response

All tiers include incident management, escalation to senior engineers, and regular service reporting. Custom SLAs available on request.

Preventative Maintenance

Reactive support is only part of the picture. GEN's preventative maintenance platform runs scheduled work against your Linux estate to keep systems secure, healthy, and performing — before problems have a chance to develop. Linux is one of several platforms covered; see our Preventative Maintenance page for the full scope.


  • Security patching — scheduled application of OS and package security updates, with pre- and post-patch verification to confirm clean application.
  • System updates — controlled package updates managed against your change window, with rollback capability where required.
  • Log rotation & housekeeping — log rotation configuration, review, and archiving to prevent runaway disk usage and ensure audit logs are retained correctly.
  • Backup verification — regular automated and manual verification that backups are completing successfully, restoring correctly, and meeting your recovery objectives.
  • Health checks — scheduled review of RAID array state, filesystem status, service states, failed units, certificate expiry, and resource utilisation trends.
  • Security hardening checks — periodic review of exposed services, open ports, user accounts, sudo access, SSH configuration, and file permission drift.
  • Kernel & firmware management — tracking available kernel updates, scheduling reboots where required, and managing firmware updates on supported hardware.

Preventative maintenance is available as a standalone service or bundled with a support contract. All work is logged and reported.

Consultancy

Beyond break-fix support, GEN provides Linux consultancy to organisations that want to get more from their infrastructure or make a planned move away from proprietary platforms. Our consultants have real-world experience across the full Linux stack — from kernel configuration and storage to networking, security, and automation.


  • Migration planning — assessing your Windows or legacy Unix estate and designing a realistic Linux migration path with minimal disruption.
  • Architecture & design — designing Linux server environments, HA clusters, storage, and network configurations built to last.
  • Security hardening — CIS benchmark hardening, SELinux/AppArmor policy, firewall design, and vulnerability remediation.
  • Performance tuning — kernel, I/O, memory, and network optimisation for high-throughput and latency-sensitive workloads.
  • Automation & scripting — Bash, Ansible, and Python automation to reduce operational overhead and eliminate manual processes.
  • Centralised management — OpenLDAP, FreeIPA, and Kerberos implementations for single sign-on and policy management across large Linux estates.
  • Containerisation — Docker, Podman, and Kubernetes design, deployment, and operational support on Linux.

Training

GEN delivers structured Linux training for system administrators, engineers, and developers — covering foundations through to advanced operations. Courses are available on-site, remotely, or as bespoke programmes tailored to your environment. Use the More Linux Training button above to see current course availability and pricing.

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