sshd: weak and broken ciphers, modes and hashes disabled in default config

Weak and broken hashes, modes and ciphers have been removed from the default sshd(8) lt configuration. Some older clients may need upgrading (or you can re-enable the weaknesses in your config). If upgrading clients is not an option, watch your /var/log/authlog for indications of what to re-enable in your sshd_config(5).