[XANTUS] / Services / Linux Sysadmin

Keep Your Linux Server Secure, Hardened & Running.

Linux system administration, server hardening, maintenance, monitoring, backups, and troubleshooting for teams that do not need a full-time sysadmin.

Server Problems You Shouldn't Have to Worry About

Unexpected Downtime

Crashes, resource exhaustion, failing services, and missing alerts can become expensive when nobody owns the system.

Unnecessary Exposure

Open services, weak SSH configuration, missing firewall rules, and default settings increase avoidable attack surface.

Backups You Have Not Tested

We help review backup setup and recovery assumptions so a “successful backup job” is not your only evidence.

What We Set Up & Maintain

Scope is matched to your stack and operating requirements.

Linux Hardening

Baseline hardening for Ubuntu, Debian, and other supported Linux distributions, including users, services, SSH, firewalling, and updates.

Web Server & Reverse Proxy

Nginx, Apache, or Caddy configuration, TLS, virtual hosts, certificate renewal, and common deployment concerns.

Access & Perimeter

SSH keys, least-privilege access, firewall rules, VPN connectivity, and appropriate brute-force protections.

Backups

Backup configuration review, offsite storage options, retention planning, and recovery verification within scope.

Monitoring & Alerts

Uptime and resource monitoring with practical alerts for the systems you actually need to watch.

Containers & Databases

Docker/Compose operations and basic PostgreSQL/MySQL configuration or troubleshooting support.

One-time setup or ongoing server care

Use us for provisioning and hardening projects, or for recurring administration support.

Book a Server Scoping Call

How support works

We can work on defined projects or ongoing server operations, depending on your needs.

01 // REVIEW

Understand the server, application, traffic, and operational requirements.

02 // PLAN

Define changes, maintenance windows, access, backups, and rollback considerations.

03 // IMPLEMENT

Apply the agreed configuration or maintenance work.

04 // VERIFY

Check service availability and relevant controls after changes.

05 // DOCUMENT

Record important configuration and operational notes.

06 // SUPPORT

Continue on a project or recurring support basis as agreed.