Linux Security Patching

Patching reduces known vulnerabilities while package and kernel changes still carry compatibility risk. We combine security priority with recovery readiness.

When this service is needed

• Servers have a security-update backlog.
• Patching lacks schedules, ownership, or maintenance windows.
• Kernels and critical packages need updating with controlled downtime.
• The organisation requires remediation status and evidence.

Scope

• OS, repository, package, kernel, reboot, and dependency inventory.
• Patch priority by severity, exposure, and exploitability.
• Compatibility checks, backup, snapshots, and rollback readiness.
• Pilot or canary patching before broader waves.
• Maintenance windows, service validation, and post-reboot checks.
• Exception registers, evidence, reporting, and next-cycle planning.

Security methodology

1. Scope and baseline: establish assets, access, exposure, and business function.
2. Assessment: collect evidence and validate conditions.
3. Prioritisation: evaluate likelihood, impact, effort, and dependencies.
4. Remediation: introduce change with backup, checkpoints, and rollback.
5. Verification: retest and retain closure evidence.
6. Handover: deliver risk registers, exceptions, and maintenance guidance.

Deliverables

• Baselines and validated findings.
• Risk ratings and a prioritised remediation plan.
• Change, exception, and rollback records.
• Retest evidence and control-maintenance guidance.

Intended outcomes

Security backlog is reduced through an auditable patch process with rollback and service-function protection.