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VPS Hardening
Securing your own server step by step — from open root to a fortress.
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Overview
A fresh VPS gets attacked within minutes of boot — and basic hardening blocks 99% of attempts: a new user with SSH keys instead of passwords, root login disabled, a changed SSH port, the ufw firewall, fail2ban auto-banning, and unattended security updates.
The agent runs this checklist over SSH in the right order (without locking itself out) and verifies each step — one hour turns an exposed box into a respectable production host.
The agent runs this checklist over SSH in the right order (without locking itself out) and verifies each step — one hour turns an exposed box into a respectable production host.
Who Is This For?
- Hardening a new VPS before any deployment
- SSH keys and disabled password login
- ufw and fail2ban against brute force
- Automatic security updates
Installation
Setup for Claude Code
# Agent runs a hardening checklist over SSH:
# new user + key auth, disable root login, change SSH port, ufw, fail2ban, unattended-upgradesExplore AI Tools
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