How to Secure SSH Access on a New VPS

Apply baseline hardening before exposing VPS services publicly.

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Authentication Hardening

Move away from password-based admin access.

Recommended workflow

Generate and deploy SSH key pairs for each operator.
Disable password authentication after key login works.
Disable direct root password login.
Rotate keys when team members leave or roles change.

Network Controls

Limit SSH attack surface with strict firewall and port policy.

Recommended workflow

Allow SSH only from trusted source IP ranges when possible.
Use firewall defaults-deny for unused inbound ports.
Monitor auth logs for repeated failed login attempts.