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[Unit] Description=OpenSSH Key Generation ConditionPathExists=|!/etc/ssh/ssh_host_rsa_key ConditionPathExists=|!/etc/ssh/ssh_host_dsa_key ConditionPathExists=|!/etc/ssh/ssh_host_ecdsa_key [Service] ExecStart=@BINDIR@/ssh-keygen -A Type=oneshot RemainAfterExit=yes