A step-by-step practical guide to locking down SSH, configuring firewalls, enforcing least privilege, hardening the kernel, and setting up audit trails on your production systems. The moment you spin up a fresh virtual machine on AWS, DigitalOcean, Hetzner, or a bare-metal server in a datacenter...
Source: [Dev.to](https://dev.to/asepsayyad007/linux-security-checklist-for-production-servers-1p12)