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).
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.
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