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Keep your SSH server software up to date to patch vulnerabilities and ensure the latest security features are in place.
Use a firewall to restrict SSH access to trusted IP addresses only, reducing the attack surface and preventing unauthorized connections.
Implement 2FA to add an extra layer of security, requiring users to provide a second form of authentication in addition to passwords.
Replace password authentication with SSH keys for stronger security, as SSH keys are harder to crack than passwords.
Prevent direct root login via SSH to mitigate the risk of brute force attacks targeting the root account.
Limit SSH access to specific times or schedules to minimize exposure to attacks during off-hours.
Enable strong encryption algorithms like AES for data transmission to protect sensitive information from interception and eavesdropping.