Standard Tier Module

Linux VM Setup Cheatsheet

A curated, filterable quick-reference for provisioning and hardening a fresh Linux server - SSH keys and access, users and sudo, packages and systemd services, firewall (ufw and firewalld), disk and system inspection, and basic hardening (disable root login, key-only auth, auto security updates).

See it run - a worked example, 100% in this browser tab

What it is

A curated, filterable quick-reference for provisioning and hardening a fresh Linux server - SSH keys and access, users and sudo, packages and systemd services, firewall (ufw and firewalld), disk and system inspection, and basic hardening (disable root login, key-only auth, auto security updates). Each command has a copy button; Debian/Ubuntu forms are shown with the RHEL/Fedora equivalent noted. Reference only, not a computed result: filter across every command (type ssh, firewall, systemctl) and confirm against the man pages for your distro.

Honest scope

Deterministic and citation-backed: every figure is exact arithmetic or a cited rule. Any year- or jurisdiction-indexed value is a confirmable input, never an eternal hardcode. This is a computation tool, not professional (legal, tax, medical, or financial) advice - confirm against the controlling authority for your context.

Run it on your own data

Open it inside GDBS to save runs to Sandbox, attach results to a Worklog case, or share through a Gate client portal - all in the browser, nothing uploaded to anyone’s cloud.

GDBS by VaultSync Solutions Inc. - Verifiable Computation. gdbs.getvaultsync.com