ShelCron

IT Support & Ops

Linux Administration

Linux server administration—hardening, patching, services, users, and operational runbooks.

We administer and stabilize Linux estates so services stay patchable, observable, and recoverable. Typical work includes user/access hygiene, service configuration, package and kernel update strategy, filesystem and log hygiene, and runbooks your team can follow without tribal knowledge.

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Who it’s for

  • Product and platform teams running Linux workloads
  • MSPs and internal IT supporting mixed fleets
  • Companies formalizing admin practices after rapid growth

Problems we address

  • Servers were configured ad hoc and nobody owns updates
  • SSH and privilege access drifted over time
  • Service failures lack a clear first-response playbook

Expected outcomes

  • Access and sudo baselines with least privilege
  • Patch and reboot cadence matched to your risk tolerance
  • Service documentation and recovery procedures

Capabilities

Concrete engineering capabilities included in a typical engagement for this service.

Linux host provisioning standards

User, SSH, and privilege management

Service and package lifecycle

Log rotation and disk hygiene

Incident-oriented runbooks

Technology

Representative technologies used for this service. Final stack depends on your estate.

  • Ubuntu/Debian
  • RHEL/Rocky/Alma
  • systemd
  • SSH
  • apt/dnf
  • journald
  • cron/timers

Architecture

Operations loop

Signals from systems feed monitoring, incident response, and change control.

SystemsTelemetryAlertsTicketsChange

Deliverables

  • Host inventory and baseline checklist
  • Configured standards as scoped
  • Patch/update procedure
  • Admin runbooks
  • Handover session

Out of scope

  • 24/7 on-call unless scoped as a managed retainer
  • Hardware break/fix depot services

Timeline

Typical timeline

1–4 weeks for baseline engagements

Timeline depends on scope, access, and dependencies—not a delivery guarantee.

Process

A clear delivery path from discovery through handover and optional support.

  1. 01

    Discovery

    Goals, constraints, success criteria, and current-state review.

  2. 02

    Architecture

    Target design, interfaces, risks, and delivery sequence.

  3. 03

    Implementation

    Incremental build with visible progress and documented decisions.

  4. 04

    Testing

    Functional checks, failure paths, and acceptance criteria validation.

  5. 05

    Deployment

    Controlled release to staging and production with rollback paths.

  6. 06

    Handover

    Runbooks, access notes, and operator/admin walkthrough.

  7. 07

    Support

    Optional hypercare window or retainer continuity after go-live.

Custom engagement

Pricing depends on architecture, traffic profile, and integration depth. Share your requirements for a scoped quote.

FAQ

No. We commonly work with Ubuntu/Debian and RHEL-family distributions. Scope the distros you run and we align to them.

Ready to build?

Tell us about your environment, constraints, and target outcomes. We’ll recommend a package or a scoped quote.