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Security Upgrades & Hardening

Planned, tested patching, hardening and major upgrades for Linux and Windows servers, with minimal downtime and a written record of every change.

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Unpatched and end-of-life servers are one of the most common ways businesses get breached. We bring Linux and Windows servers up to date and keep them there: security patches, major version upgrades, configuration hardening and the access controls around them.

Every change is planned, tested and scheduled in a maintenance window, with backups taken first and a rollback plan ready. You get a report of what changed and what still needs attention.

What’s included

  • Security assessment

    An inventory of servers, software versions, open ports, accounts and known vulnerabilities.

  • Patch management

    Scheduled OS and package updates, tested before they reach production.

  • End-of-life upgrades

    Moving off unsupported systems such as CentOS 7 or old Windows Server releases.

  • Hardening

    SSH and RDP lockdown, firewall rules, least-privilege accounts and secure defaults.

  • TLS & web security

    Certificates, HTTPS everywhere and security headers for your sites.

  • Reporting

    A written record of changes, remaining risks and recommended next steps.

Typical projects

  • Upgrading end-of-life CentOS and Windows Server systems
  • Hardening internet-facing web servers
  • Setting up automated security updates
  • Cleaning up user accounts and remote access
  • Preparing for a security questionnaire or audit

Tools & technology

  • Ubuntu
  • Debian
  • RHEL / AlmaLinux / Rocky
  • Windows Server
  • Apache & nginx
  • IIS
  • Let’s Encrypt

Frequently asked questions

Will patching cause downtime?

Most updates need none. Kernel and major upgrades are scheduled in an agreed maintenance window, with backups taken first and a tested rollback plan.

Our server runs an old OS. Can it be upgraded in place?

Sometimes. It is often safer to build a new server on a supported release and migrate the applications. We recommend the lower-risk path after the assessment.

How often should servers be patched?

Critical security updates within days of release and routine updates monthly. Once automated updates are set up and monitored, they handle much of this.

Often paired with

Managed IT & Technical Support

Ongoing maintenance, monitoring and technical support for your servers, databases and staff, remotely or on site across Toronto and the GTA.

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Backup & Disaster Recovery

Automated, encrypted, off-site backups with scheduled restore tests and a written recovery plan, so recovery is a procedure and not a gamble.

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DevOps, CI/CD & Cloud

Continuous integration and deployment pipelines, containers, infrastructure as code and reliable hosting, so every change is tested automatically and released safely.

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Ready to get started?

Tell us about your systems and goals, and an engineer will reply with next steps for Security Upgrades & Hardening.

Start a project Call +1 (416) 900-3785