ssh-hardening-incident-response

Harden SSH by disabling password authentication, enforcing key-based login, and restricting access to trusted users to prevent brute-force attacks on remote servers. This baseline configuration reduces exposure to credential compromise across cloud instances and server fleets.

Respond to an SSH credential compromise by using incident response workflows to identify offending IPs, isolate affected accounts, and rapidly rotate keys. These playbooks help contain brute-force events and secure remote servers quickly after suspected exposure.

Yes, this SSH hardening approach applies to cloud instances and remote server fleets requiring minimal privilege and key rotation. It supports phased rollout to apply validated configuration changes across multiple hosts while maintaining secure access.

SSH key rotation during a lockdown involves replacing compromised credentials with new key-based authentication and enforcing minimal privilege access. Validated changes and versioned sshd_config backups ensure the rotation is tracked and can be rolled back if needed.

Yes, the SSH hardening process provides audit-ready configurations through versioned sshd_config backups and monitoring. Validated changes create audit trails that document exactly what security modifications were applied to remote servers for compliance verification.

Rollback SSH configuration changes using the versioned sshd_config backups created during the hardening process. These validated changes ensure you can safely revert to previous settings if access issues occur while maintaining audit trails of the modifications.