Generate Server Password Password

SSH keys are strongly preferred over passwords for server authentication. Key-based auth is immune to brute-force attacks, does not transmit secrets over the network, and can be easily revoked. Use passwords only as a fallback. If you must use password auth, disable it on port 22 and use a non-standard SSH port with fail2ban.

Install fail2ban to automatically block IPs after repeated failed login attempts. Change the default SSH port from 22 to a non-standard port. Disable root login and password authentication in sshd_config when possible. Use a firewall to restrict SSH access to known IP addresses or a VPN. These measures work together to dramatically reduce attack surface.

Centralize authentication using LDAP, Active Directory, or a cloud identity provider rather than managing passwords on each server individually. Implement role-based access control, require 2FA for privileged accounts, and use a shared secrets manager for service account passwords. Audit access logs regularly and revoke credentials immediately when team members leave.

Never. If one server is compromised, the attacker would gain access to your entire infrastructure. Each server should have a unique password, ideally managed through a centralized identity system or secrets manager. For emergency root access, store unique passwords per server in an encrypted vault with strict access controls.